Browse technical resources about solar mounting systems, tracker technology, structural design, and installation best practices.
HOME / The Ultimate Guide To Charging Your 60v Dewalt Battery - BeTheFuture Solar Foundation & Infrastructure
You can connect multiple wires to a single battery terminal in several ways. Here are some devices you can use to do that: 1. A terminal block is a device that allows connecting multiple. The instructions for attaching a t-tap splice wire connecting are different. Follow these manufacturer instructions: 1. Place wire in the connector. 2. Since several devices are available for connecting multiple wires, you might want more information to help you choose which one to use. 1. Terminal blocks are metal plates or jumpers. You might be interested to know how many wires you can safely connect to a single battery. The answer depends on the type and size of the battery and each wire's amperage.
If you need to connect multiple wires to a single battery, I'll show you how it can be done. There are several ways you can connect multiple wires to a battery terminal: either using a terminal block, t-tap splice wire connector, busbar/powerpost, or a 3 or 4-way connector. Whichever device you use, always ensure that the connections are secure.
It is recommended to use wires with a gauge rating of at least 12-14 AWG (American Wire Gauge) for most applications. Wire connectors - Use appropriate wire connectors that can securely connect the wires to the battery terminals. Electrical tape - This will provide insulation and protection for the connections. Tools needed:
Cordless drill battery - Ensure you have a compatible cordless drill battery that is in good working condition. Insulated wires - Choose wires that are thick enough to handle the voltage and current of the battery. It is recommended to use wires with a gauge rating of at least 12-14 AWG (American Wire Gauge) for most applications.
Connect the right wires to each connector (of your chosen device) of the two terminals. Connect the positive (red) wire to the battery's positive terminal and the negative (black) wire to its negative terminal. Tighten the wires to each terminal using a pair of pliers or a spanner. Ensure that all the connections are secure.
If you're looking to connect wires to a cordless drill battery, don't worry, it's easier than you might think. First, gather all the necessary materials: a cordless drill battery, wires with stripped ends, and a pair of wire strippers. Start by identifying the positive (+) and negative (-) terminals on the battery.
Look at the previous page and the wiring diagram for the battery. Notice the two outside wires of the charging connector connect to the same location as the primary output connector. Therefore, it is OK to use the two outside wires of the charging connector as the primary power output. And the same two wires can be used as the charger input too.
Although the control circuit of the controller varies in complexity depending on the PV system, the basic principle is the same. The diagram below shows. According to the controller on the battery charging regulation principle, the commonly used charge controller can be divided into 3 types. 1. The most basic function of the solar charge controller is to control the battery voltage and turn on the circuit. In addition, it stops charging the battery when the battery voltage rises to a.
The solar charge controller works by measuring the voltage of the batteries and the solar panels and adjusting the flow of electricity accordingly. When the batteries are fully charged, the controller will reduce the amount of electricity flowing into the batteries to prevent overcharging.
During the night or when solar panels are not producing electricity, there is a risk of reverse current flow from the battery back to the panels. Solar charge controllers prevent this reverse current flow, which might discharge the battery. Applications Solar charge controllers are a vital component in various solar energy applications.
1. Battery Voltage Regulation: The primary function of a PV solar charge controller is to regulate the voltage and current a battery receives from the photovoltaic panels. This is critical to safeguard against overcharging, which could eventually damage or significantly degrade the battery. 2.
Yes, using a charge controller with your solar panel is highly recommended. A charge controller is crucial for maintaining the safety, efficiency, and lifespan of your solar power system.
A charge controller is an essential part of any solar panel system. It keeps your batteries safe and helps to store the accumulated energy. The controller functions by understanding when the battery needs to be charged. It is important to know the core difference between PWM (Pulse Width Modulation) and MPPT (Maximum Power Point Tracking) controllers in this regard.
It has to be sized big enough to handle the power and current from your solar panels. Charge controllers come in 12, 24, and 48 volts. Amperage is between 1-60 amps and voltage 6-60 volts. Is a charge controller the same as an inverter?
As the integration of renewable energy sources into the grid intensifies, the efficiency of Battery Energy Storage Systems (BESSs), particularly the energy efficiency of the ubiquitous lithium-ion batteries t.
Charge discharge efficiency in lithium-ion batteries is influenced by a multitude of factors, including the battery's internal chemistry, the operational environment, and the charging/discharging protocols employed. Temperature Impact: Temperature significantly influences charge discharge efficiency lithium ion batteries.
Efficient charging reduces heat generation, which can degrade battery components over time, thus prolonging the battery's life. Several factors influence the charging efficiency of lithium ion batteries. Understanding these can help in optimizing charging strategies and extending battery life.
The expanding use of lithium-ion batteries in electric vehicles and other industries has accelerated the need for new efficient charging strategies to enhance the speed and reliability of the charging process without decaying battery performance indices.
However, a battery pack with such a design typically encounter charge imbalance among its cells, which restricts the charging and discharging process . Positively, a lithium-ion pack can be outfitted with a battery management system (BMS) that supervises the batteries' smooth work and optimizes their operation .
Therefore, even if lithium-ion battery has a high CE, it may not be energy efficient. Energy efficiency, on the other hand, directly evaluates the ratio between the energy used during charging and the energy released during discharging, and is affected by various factors.
Discharging a lithium-ion battery allows it to supply power to devices. This process moves lithium ions and generates an electric current. Proper discharge management ensures efficiency, extends battery life, and prevents damage. How Does Discharging a Lithium-Ion Battery Work?
Undercharging occurs when the battery is not allowed to return to a full charge after it has been used.Easy enough, right? But if you do this continuously, or even just store the battery with a partial charge, it can cause sulfating. (Spoiler alert: sulfation is not good.) Sulfation is the formation of lead sulfate on the battery plates,. While you certainly don't want to keep your battery in an undercharged state, overcharging is just as bad.Continuous charging can: 1. cause. Because water is lost during the charging process, damage can occur if that water is not replenished. If the electrolyte level drops below the tops of the plates, the damage can be. The issues surrounding over and under charging as well as over and under watering can be a fine line to walk. It's really just about finding. Not only can your battery have too little water to function properly, but it can also have too much. Overwatering can cause the electrolytes to become diluted, which results in diminished battery performance levels. Pro tip: a normal.
[PDF Version]Lead acid is sluggish and cannot be charged as quickly as other battery systems. (See BU-202: New Lead Acid Systems) With the CCCV method, lead acid batteries are charged in three stages, which are constant-current charge, topping charge and float charge.
The most important first step in charging a lead-acid battery is selecting the correct charger. Lead-acid batteries come in different types, including flooded (wet), absorbed glass mat (AGM), and gel batteries. Each type has specific charging requirements regarding voltage and current levels.
Charging a lead acid battery at high temperatures can cause serious damage to the battery and even lead to explosions. When a battery is overcharged, it may experience: Reduced Battery Life: Exaggerated use increases internal resistance, reducing the number of cycles performed.
Even in storage, lead-acid batteries naturally lose charge over time, and failure to periodically recharge them can result in irreversible damage. 8. Proper Disposal and Recycling of Lead-Acid Batteries Lead-acid batteries contain hazardous materials, including lead and sulfuric acid, making proper disposal crucial.
As with all other batteries, make sure that they stay cool and don't overheat during charging. Sealed lead-acid batteries can ensure high peak currents but you should avoid full discharges all the way to zero. The best recommendation is to charge after every use to ensure that a full discharge doesn't happen accidently.
This mode works well for installations that do not draw a load when on standby. Lead acid batteries must always be stored in a charged state. A topping charge should be applied every 6 months to prevent the voltage from dropping below 2.05V/cell and causing the battery to sulfate. With AGM, these requirements can be relaxed.
Battery energy storage systems can enable EV fast charging build-out in areas with limited power grid capacity, reduce charging and utility costs through peak shaving, and boost energy storage capacity to allow for EV charging in the event of a power grid disruption or outage.
One of the most effective ways to achieve this is by integrating Battery Energy Storage Systems (BESS) with EV charging stations. This innovative approach enhances grid stability, optimizes energy costs, and supports the transition to a more sustainable transportation ecosystem. Power Boost and Load Balancing
Battery energy storage systems can help reduce demand charges through peak shaving by storing electricity during low demand and releasing it when EV charging stations are in use. This can dramatically reduce the overall cost of charging EVs, especially when using DC fast charging stations.
Incorporating energy storage into EV charging infrastructure ensures a resilient power supply, even during grid fluctuations or outages. This reliability is crucial for businesses that rely on EV fleets for daily operations, as well as municipalities working toward sustainable public transportation solutions.
Fortunately, there is a solution, and that solution is battery energy storage. The battery energy storage system can support the electrical grid by discharging from the battery when the demand for EV charging exceeds the capacity of the electricity network. It can then recharge during periods of low demand.
Battery energy storage can store excess renewable energy generated by solar or wind and release it when needed to power EV charging stations. This can help increase renewable energy use and reduce reliance on fossil fuels.
The integration of EV charging infrastructure with Battery Energy Storage Systems is more than just a technological advancement; it's a shift in how we view and manage energy. This integration promises a future where energy is not only consumed more efficiently but also generated and stored sustainably.
The Battery Management System (BMS) is essential for electric vehicles, playing a crucial role in protecting the battery, extending its lifespan, and optimizing charging speed and efficiency.
The simple answer is no, a 6V solar panel cannot directly charge a 12V battery. There are two main reasons for this, which I have discussed below, followed by some alternative solutions.
To charge a 12V battery with solar panels, you will need the solar panel itself, a charge controller, an appropriate battery, and connecting cables. Make sure the solar panel's capacity matches your battery's requirements for effective charging. How do I set up a solar panel system for charging?
Both regulators will help the solar panel charge your six-volt battery and do that safely. Another consideration for charging batteries with a solar panel is a battery backup bank. While charging a single battery, you can also charge a battery bank. The energy in the bank will allow you to charge your devices when the solar panel is inactive.
Essential Components: To charge a 12V battery effectively, you'll need a compatible solar panel, a charge controller for voltage regulation, and suitable cabling to minimize voltage drop.
There is no danger in trying to charge a 12v battery with a 6v charger. There is not enough electricity involved to fill the 12v battery. The first lesson is that smaller voltage-rated chargers do not provide enough energy to charge larger voltage-rated batteries. So, for example, you cannot use a six-volt charger to charge a twelve-volt battery.
Select a solar panel that matches your battery's capacity. Common sizes for charging 12V batteries range from 20W to 200W. For instance, a 100W panel generally works well for most applications. Check the solar panel's voltage output; it should ideally produce around 18V to effectively charge your 12V battery.
A 100W panel typically charges a standard 12V battery within 5-8 hours of sunlight. Sunlight Exposure: Position the solar panel for optimal sunlight. Ideal orientation includes a tilt towards the sun to maximize energy capture throughout the day. Wire Size: Use appropriately sized wires to minimize voltage drop during the charging process.
The battery charger needle keeps jumping because of a shorted cell, short in the charging system, internal overload, excessive drain current and faulty connectors. The needle of the battery indicates the amount of current being supplied by the battery charger to the car battery. Usually, when you turn on the charger, the needle is on the right inside,. Only if the charger does not trip when charging the car battery should you continue to charge the battery. Otherwise, it is better to disconnect it from the car battery. How long should.
One such problem is the battery charger needle moving back and forth. Why is my battery charger needle keeps jumping? The battery charger needle keeps jumping because of a shorted cell, short in the charging system, internal overload, excessive drain current and faulty connectors. 1. Shorted cell:
The volt meter always stays at the center of the meter. Now it moves and when it is to the left at about 1/4 of the full gauge reading it is charging the battery at 12 volts. I know that a proper charging rate is around 14.2 volts.
When using a charger with an amp meter, check the display frequently. The meter helps you know if the battery is charging correctly or if adjustments are needed. Familiarizing yourself with these features ensures you never overcharge your battery. Accurately reading the amp meter on your battery charger is vital for maintaining battery health.
If the amount of current needed by the car battery is much higher than what the battery charger supplies, it will suffer from an internal overload. When this occurs, time and again, the car battery charger will try to supply a higher amount of current but will fail to do so. That is why; the needle will keep on moving back and forth. 5.
An amp meter is an important tool on battery chargers. It shows the flow of current during charging. You may find two types: Analog Meter: This uses a needle and gauge to display current. Read the gauge carefully to know the amp flow. Digital Meter: These show the current in numbers. They are usually easier to read and give precise information.
To determine the charge rate, you must first look at the amp meter reading. This reading represents the current flowing from the charger to the battery, measured in amperes (amps). Check the Amp Meter: Observe either the needle or digital display on the meter. Know Your Battery Capacity: Battery capacity is usually given in amp-hours (Ah).
In electronics,the cut-off voltage is the voltage at which a battery is considered fully discharged, beyond which further discharge could cause harm. Some electronic devices, such as cell phones, will automatically shut down when the cut-off voltage has been reached.
This ensures that the battery receives the optimal charge without interference. Lithium-ion batteries do not need to be fully charged to maintain performance. Partial charges are often better for longevity. Keeping the state of charge (SoC) between 40% and 80% can help prolong battery life and reduce stress on the battery's chemical composition.
Connect with Darren on LinkedIn. The BMS causes lithium batteries to go in to protection mode when overheating, high currents, and high or low voltage. Learn more on how to prevent those and recharge your battery
A lithium-ion battery is considered fully charged when the current drops to a set level, usually around 3% of its rated capacity. Some chargers may apply a topping charge to maintain the battery's voltage without risking overcharging, which is vital for extending battery life. 2. Safety Considerations
The charging and discharging of lithium ion battery is actually the reciprocating motion process of lithium ions and electrons. When charging, apply power to the battery to let lithium ions and electrons go to the graphite layer along different paths. At this time, lithium atoms It is very unstable.
Overcharging can lead to catastrophic battery failure. Thus, chargers must be designed with high accuracy to prevent exceeding the recommended voltage thresholds. Incorporating smart technology in chargers can significantly reduce the risk of overcharging. 3. Best Practices for Charging Lithium-Ion Batteries
Lithium batteries can get hot for multiple reasons. The most common reasons are too high current either while discharging or charging for the ambient temperature conditions or poor ventilation around the batteries. Lithium battery overcharge protection allows the battery to shut off and the current goes away.
This module consists of TP4056 charger IC and the DW01A protection IC for Lithium-Ion battery. The diagram showing all the pins of this module is given below. Due to its capability of supplying 4.2V, it is highly suitable for charging 18650 cells and other 3.7V batteries. It requires minimum external components; therefore, you can use this module in. It is used for charging batteries and therefore can be used in all those devices which run on battery. Few applications of this module include: 1. TP4056 module operates by supplying 5V power from either micro USB cable or the IN+ and IN- solder pads. At least, the current of 1A is required for the charger to correctly charge a battery.
Safety: Battery charger modules include protection circuits to prevent overcharging, over-discharging, and overheating of the battery. Efficiency: Battery charger modules regulate the charging current and voltage to ensure that the battery is charged efficiently.
Battery charger modules work by converting AC power to DC power and regulating the charging current and voltage. The charger module may use different charging algorithms, depending on the type of battery being charged. For example, lead-acid batteries require a different charging algorithm than lithium-ion batteries.
There are several types of battery charger modules available, including: Linear Charger Module: A linear charger module is a simple charger module that uses a linear regulator to regulate the charging current and voltage. Linear charger modules are suitable for small batteries and low-power applications.
USB Charger Module: A USB charger module is a charger module that is designed to charge batteries from a USB port. USB charger modules are suitable for small batteries and low-power applications. Battery charger modules offer several advantages over other charging methods, including:
Battery charger modules offer several advantages over other charging methods, including: Safety: Battery charger modules include protection circuits to prevent overcharging, over-discharging, and overheating of the battery.
A battery module is essentially a collection of battery cells organized in a specific arrangement to work together as a single unit. Think of it as a middle layer in the hierarchy of battery systems. While a single battery cell can store and release energy, combining multiple cells into a module increases the overall capacity and power output.
Discover the optimal charging voltages for lithium batteries: Bulk/absorb = 14. Avoid equalization (or set it to 14. 4V if necessary) and temperature compensation.
Lithium-ion battery voltage charts are a great way to understand your system and safely charge batteries. Lithium-ion batteries are rechargeable battery types used in a variety of appliances. As the name defines, these batteries use lithium-ions as primary charge carriers with a nominal voltage of 3.7V per cell.
50% capacity in a lithium battery often correlates to approximately 3.6V to 3.7V per cell for most lithium-ion batteries. This voltage range represents the mid-point of the battery's discharge cycle. What is the cutoff voltage for a 12V lithium-ion battery?
Here's the lithium battery state of charge chart: A typical lithium-ion battery voltage curve is the relationship between voltage and state of charge. When the battery discharges and provides an electric current, the anode releases Li ions to the cathode to generate a flow of electrons from one side to the other.
A 24V lithium-ion or LiFePO4 battery pack typically requires a charging voltage within the range of about 29-30 volts. Specialized chargers designed for multi-cell configurations should be considered, and adherence to manufacturer guidelines is crucial for safe and efficient charging.
The key parameters you need to keep in mind, include rated voltage, working voltage, open circuit voltage, and termination voltage. Different lithium battery materials typically have different battery voltages caused by the differences in electron transfer and chemical reaction processes.
The Li-ion battery might have a maximum charge voltage of 4.2 volts per cell. The LiFePO4 battery would have a lower maximum charge voltage of 3.6 volts per cell. Discharge Cutoff Voltage Discharge cutoff voltages also vary across different lithium battery types:
The term Cut-off Voltage is activated voltage level at which the charge controller ( a voltage and/or current regulator) disconnects the load from the battery.
This simple yet effective Automatic Cut-Off Battery Charger Circuit provides a reliable way to manage battery charging without manual intervention. The use of a relay, transistor, potentiometer, and LEDs ensure precise control and status indication.
In batteries, the cut-off (final) voltage is the prescribed lower-limit voltage at which battery discharge is considered complete. The cut-off voltage is usually chosen so that the maximum useful capacity of the battery is achieved.
This auto cut off low high battery charger circuit can be used as a DC UPS circuit also for ensuring a continuous supply for the load regardless of the mains presence or absence and for getting an uninterrupted supply through out its usage.
Formula for calculating full charge cut off limit is: Battery voltage rating + 20%, for example 20% of 12V is 2.4, so 12 + 2.4 = 14.4V is the full charge cut off voltage for a 12V battery To know the battery back up time the following formula can be used, which gives you the approximate battery back up time. Backup = 0.7 (Ah / Load Current)
It seems standard for a lithium-ion charger to cut off the applied voltage when the CV-mode current draw dips below 0.1C (or thereabouts). Why is this necessary? Why can't the charger continue to apply 4.2V indefinitely? According to Battery University: Li-ion cannot absorb overcharge. When fully charged, the charge current must be cut off.
Here is what I mean by auto-voltage cut off (focus on the blue and black voltage curve): V (in) is the input voltage of the an auto cutoff circuit and V (v_dc) is the output of this circuit (and is connected to the battery). For a 12 Volts Lithium Ion battery will a cut off at 9 (or 10 or 11.5 or 12, etc) Volt be detrimental? Please let me know.
In the cost table, we have estimated battery costs based on typical battery output as follows: battery power 7kW peak / 5kW continuousfor each battery. Let's take a look at the average solar panel battery storage cost, covering different system types and installation prices. Solar PV battery storage costs will depend on a few. The typical home battery storage system size is around 4kWh, although capacities up to up to 16kWh are available. There are also other 'stackable' or bespoke systems if more capacity is required. An electric battery will help you make the most of your renewable electricity.By ensuring that you use more of the electricity you generate, the less you have to buy from the grid. If you. At the very least, your battery will need a dedicated circuit and isolator switch, so you will need a qualified electrician to install this for you. In addition, the batteries themselves can be very heavy and may require ventilation, so it is recommended that a properly qualified. Solar panels and batteries both produce direct current (DC) and require a device called an Inverter to change that to alternating current.
[PDF Version]Capacity is the main factor that dictates how much a storage battery costs. It works out at around £900-£1,000 per kWh of electricity a battery can store. The more solar panels you have, and the higher your energy usage, the larger your battery's capacity will need to be.
Battery Energy Storage Systems (BESS) are becoming essential in the shift towards renewable energy, providing solutions for grid stability, energy management, and power quality. However, understanding the costs associated with BESS is critical for anyone considering this technology, whether for a home, business, or utility scale.
But while a battery can save you a fortune in electric bills, it is a chunky upfront investment. The average price of a storage battery for a UK home is £5,000. Prices vary according to factors including a battery's capacity, lifespan and brand name. You can also cut the cost of solar panels and a battery by having them installed at the same time.
Given the range of factors that influence the cost of a 1 MW battery storage system, it's difficult to provide a specific price. However, industry estimates suggest that the cost of a 1 MW lithium-ion battery storage system can range from $300 to $600 per kWh, depending on the factors mentioned above.
Figure ES-2 shows the overall capital cost for a 4-hour battery system based on those projections, with storage costs of $245/kWh, $326/kWh, and $403/kWh in 2030 and $159/kWh, $226/kWh, and $348/kWh in 2050.
Developer premiums and development expenses - depending on the project's attractiveness, these can range from £50k/MW to £100k/MW. Financing and transaction costs - at current interest rates, these can be around 20% of total project costs. 68% of battery project costs range between £400k/MW and £700k/MW.
Yes, you can recharge an auxiliary battery. It typically charges with the main battery, or you can use a trickle charger or conventional charger for direct charging.
You will need away to connect isolate and or charge an auxiliary battery and that is where a VSR, Dc to DC charger or BMS comes in. Most vehicles 2000 and prior or somewhere around there, had a fixed voltage alternator charging system. The alternator had a constant voltage output regulated around 14.0v give or take some,
Auxiliary batteries vary in size and specification dependent on the demands placed on it by the vehicle electrical system and can be used as a safety back-up to support the main battery when required or to provide voltage for specific vehicle systems all of the time.
The auxiliary battery supports all 12v electrical systems: The exceptions are the air conditioning and heating systems. An auxiliary battery can also be used as a safety backup to support the main battery when required or to provide constant voltage for specific vehicle systems.
B2B chargers are specifically designed to work seamlessly with these systems, providing a consistent and appropriate charge to your auxiliary battery, without interfering with the vehicle's electrical system. Versatility: Our range of B2B charger kits is compatible with various battery types, including lead-acid, AGM, gel, and lithium batteries.
Battery to battery chargers are advanced charging devices designed to charge an auxiliary battery from the primary vehicle battery. Unlike traditional chargers, B2B chargers utilise a more sophisticated method, ensuring the auxiliary battery receives a properly regulated charge, tailored to its specific type and condition.
When an auxiliary charging solution requires a higher power output in the range of 150 to 153 W and would benefit from active PFC and output trim control, consider the CUI VGS-150D product series. These rugged AC/DC power supplies support input voltages from 85 to 305 VAC and outputs from 12 to 48 VDC.
To charge a 60V system with solar panels, consider the following options:Smart Solar Battery Charger: This charger can handle up to 60V input and has adjustable output voltage, making it suitable for various charging needs1. Boost Charge Controller: It allows charging of 60V batteries using lower voltage solar panels, making it versatile for different setups3.
Why we need a 60v & 72V Solar Charge Controller. 60V & 72V Solar battery charger is suitable for charge 60 Volt & 72 Volt Solar Battery Bank Configuration and usually it realized via Voltage Boosting. 72V Solar Battery has the advantages of 12V 24V could not compare to. which is Charge much faster and can Store more power.
A 60-Amp charge controller can handle 480 Watts of power, so you can connect eight 60-Watt solar panels to it. You will need a second or an upgraded charge controller for more than that. An inverter would work the same way.
The 72V battery bank consists of six 12V battery cells, and usually this battery bank is installed in the electric vehicles. Our current pick for the best 60v 72v solar charge controller of 2022 is the BB01 boost charge controller. It's a device that does just about everything right.
most conventional solar charge controller are rated 12V or 24V, that is a standard solar power system. 48v is becoming more popular as some big project required, but 60v and 72v is rare before. Why we need a 60v & 72V Solar Charge Controller.
Yes! An average 60-Watt solar panel produces about 5 Amps. With simple multiplication, 5 Amps can charge a 50-amp hour battery in ten hours. So, according to the math, you can charge a 50-amp hour battery with a 60-watt solar panel in usually ten hours.
A 6V solar panel charger is a circuit designed to optimally charge a 12V lead-acid battery using a 6V solar panel. It provides approximately the same current as if the solar panel were directly connected to the battery.
They can't be used across voltage. 72 volt batteries are composed of six batteries connected in series, while 60 volt batteries only have five batteries connected in series.
To do this, you need to connect an inverter to the battery bank. It is important to match the battery bank voltage with an inverter that can handle that same voltage. Simply put, if you have a 12V system, you need a 12V inverter; a 48V system requires a 48V inverter. Standard Pure Sine Wave inverters simply change DC power to AC power.
You'll also drain the battery faster. 72v 45ah is pretty much the same as a 60v 60ah so the 72v will be likely cheaper. 72v has better top speed. 60v batteries have more noticeable drop in power as the voltage drops. 72v all the way.
The upper limit of charging termination voltage is generally 1.2 times of nominal voltage, while the lower limit of discharge cut-off voltage is generally 0.9 of nominal voltage. For 72v batteries, the upper limit voltage for charging is 14.4*6=86.4 volts, while the lower limit discharge cut-off voltage is 10.8*6=64.8 volts.
Majority of inverters can only support 24V or 12V. Some inverters may provide separate connections for 24V and 12V, but they are the exception to the rule. If you somehow get the inverter to run, it will not be able to carry any load. There are only two solutions, get a 12V inverter or combine two 12V batteries in a series.
Either way, you really have to keep any eye on your voltages during running, as the low voltage cutoff will be wrong, and you can over discharge your battery. A 60v lead acid battery will be around 72v when fully charged, so the controller has to be made for at least this much. Usually there is a little headroom in the ratings also. Chah said:
For a 60 volt battery, the upper limit of charging voltage is =14.4*5=72 volts, and the lower limit discharge cut-off voltage is =10.8*5=54 volts. Actually, the voltage may be a little different from the theoretical value, but it will not be too big.