Batteries


48V LiFePo4 Batteries

These are some great value and high quality sources for 48V server rack solutions. 48V server rack battery systems are the lowest cost and easiest way to build a powerful battery backup system. I recommend LiFePo4 battery chemistry, you will get the most cycles and longest life.


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EG4-WallMount Indoor Battery | 48V 280Ah | 14.3kWh | Heated - Only place still in stock!!
EG4-WallMount Indoor Battery | 48V 280Ah | 14.3kWh | Indoor | Heated UL1973, UL9540A | 10-Year Warranty

For indoor installation, this is the best value package. One battery will be sufficient for supporting a fridge and emergency circuits for at least 24hours.

Current Connected still has these in stock, get them while you can...
Use the exclusive code "dave" to get free shipping for the month of August.

Purchase from Current Connected.open_in_new
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EG4-WallMount Indoor Battery | 48V 280Ah | 14.3kWh | Heated - Currently out of stock but accepting pre-orders.
EG4-WallMount Indoor Battery | 48V 280Ah | 14.3kWh | Indoor | Heated UL1973, UL9540A | 10-Year Warranty

For indoor installation, this is the best value package. One battery will be sufficient for supporting a fridge and emergency circuits for at least 24hours.

Use this code for a $50 discount on your order of $500 or more through Signature Solar: EVERYDAYDAVE

Purchase from Signature Solar.open_in_new
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EG4 PowerPro WallMount AllWeather | 48V 280Ah | 14.3kWh LiFePO4
EG4 PowerPro WallMount AllWeather Lithium Battery | 48V 280Ah | 14.3kWh LiFePO4 | All-Weather Energy Storage | UL1973, UL9540A | 10-Year Warranty

If you need to mount your batteries out doors, this is the best value package. One battery will be sufficient for supporting a fridge and emergency circuits for at least 24hours.

Use this code for a $50 discount on your order of $500 or more through Signature Solar: EVERYDAYDAVE

Purchase from Signature Solar.open_in_new
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NEW BUDGET VERSION!! - SOK Battery 100Ah 48v Server Rack Battery
This is supper exciting! Get an SOK quality serviceable battery at the lowest price on the market. Currently $1,350!! This budget no frills version has built in BMS with 2 temperature sensors and built in circuit breaker. There is no pre-charge circuit, so be sure to use a pre-charge resistor when connecting to inverters. All cells have bolted connections. This will save you $1,500 on a full server rack! This battery is not UL listed, so keep that in mind if you will need to get an inspection.

Purchase through Current Connected. SOK SK48V100-NCBTopen_in_new
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SOK 100Ah 48v Server Rack Battery
Quality construction. Built in BMS with temperature sensors and built in pre-charge circuit. Built in screen for easy monitoring and control. Best 48V battery for serviceability. All cells have bolted connections. If you are just getting one battery and don't want to have a separate battery monitor this is the best solution. This battery is UL1973 & UL9540A certified, UL9540 pending.

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Fully Loaded 25kWh SOK 48v Server Rack Battery Kit
Bundle & Save by purchasing batteries and racking together. Includes cables for connecting the batteries. Quality construction. Built in BMS with temperature sensors and built in pre-charge circuit. Built in screen for easy monitoring and control. Best 48V battery for serviceability. All cells have bolted connections.

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EG4-LifePower4 Lithium Battery | 48V 100AH | Server Rack Battery | UL1973
Best value solution. Quality construction. No screen interface. Built in BMS with temperature sensors.

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EG4-LifePower4 Lithium Batteries Kit | 30.72kWh | 6 Server Rack Batteries With Free Pre-Assembled Enclosed Rack | With Door & Wheels
Bundle & Save by purchasing batteries and racking together. This is the best price for the capacity.

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EG4-LL Lithium Battery (V2) | 48V 100AH | Server Rack Battery | UL1973
Similar to SOK battery. Quality construction. Built in BMS with temperature sensors. Built in screen for easy monitoring and control.

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EG4-LL Lithium Batteries Kit (V2) | 30.72kWh | 6 Server Rack Batteries With Free Pre-Assembled Enclosed Rack | With Door & Wheels
Bundle & Save by purchasing batteries and racking together. This package includes the batteries with built in screens like the SOK system.

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LiFePo4 Raw Cells

I have been working on a source for reliable prism cells. I recommend LiFePo4 battery chemistry for home backup solutions. You will get the most cycles, longest life and good stability. I have tested the Grade A EVE cells listed below they exceeded their rated capacity. I plan to issue a video soon on the results. They batteries come with insulating panels and bus bars. The bus bars are ridged, I recommend you replace them with flexible ones like those listed below.

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LF280K LiFePO4 Battery cells 3.2V 280Ah | Grade A 6000+ cycles | for EVs, Solar Systems
These 280Ah cells ship from a US warehouse for quick delivery. Or from China for lower cost.
I have tested these Grade A EVE cells, and they exceeded their rated capacity.
Using my link below automatically populates the discount code dave5 for an additional 5% discount.
There is a $30 financial transaction fee, so the more you purchase at one time the lower the cost.
Shipping and taxes are included in the price. If you have any issues, please send me an email from the about page: https://projectswithdave.com/projectswithdave.com/about/

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EVE MB31 314Ah 3.2V LiFeP04 Battery | 10000 Cycles Brand New Grade A+ | for EVs, Solar Systems
These 314Ah cells ship from a US warehouse for quick delivery. Or from China for lower cost.
I have tested the 280Ah cells listed above, and they exceeded their rated capacity, I have not tested the 314Ah cells yet.
Using my link below automatically populates the discount code dave5 for an additional 5% discount.
There is a $30 financial transaction fee, so the more you purchase at one time the lower the cost.
Shipping and taxes are included in the price. If you have any issues, please send me an email from the about page: https://projectswithdave.com/projectswithdave.com/about/

Click here for discount affiliate link.open_in_new
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Flexible Cooper Bus Bars
Flexible Cooper Bus Bars Connector Nickel Plate Pitch Row Lifepo4 Cell Lithium battery Busbar (4, Pitch Row 2.9in)

Click here to purchase on Amazon.open_in_new
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JKBMS Smart BMS for 12V Battery
JKBMS Smart BMS with Heat CAN RS485 4S-8S 12V-24V 200A 2A Active Balance BMS with Bluetooth Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A8S20P-Heat-CAN)

Click here to purchase on Amazon.open_in_new
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JKBMS Smart BMS for 48V Battery
JKBMS Smart BMS with Heat CAN RS485 8S-20S 200A 2A Active Balance with Bluetooth Battery Protection Board for LiFePO4 Li-ion LTO Battery Pack (JK-B2A20S20P-HC)

Click here to purchase on Amazon.open_in_new

12V LiFePo4 Batteries

There are lots of options for 12V batteries. The ones listed below are ones that I have high confidence in and are either great value or high quality solutions. I recommend LiFePo4 battery chemistry, you will get the most cycles and longest life.


Get an additional 3% off site wide at LiTime with code: Dave3

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LiTime (used to be AmpereTime)
Good value for money. I've tested their 12V 100Ah batteries with great results. 3% OFF Site Wide CODE: Dave3

LiTime direct site and use coupon code.open_in_new

You can also purchase LiTime/AmpereTime batteries from Amazon

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Ampere Time 12V 100Ah LiFePO4 Battery
Great Value 12V 100Ah LiFePO4 Battery

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Ampere Time 12V 200Ah Plus Lithium LiFePO4
Great Value 12V 200Ah LiFePO4 Battery

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EG4-WP Waterproof Lithium Battery | 12V 100AH | Bluetooth
EG4 always has great value for the money.

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SOK Battery | 100Ah 12v | LiFePO4 Battery
SOK batteries cost more, but are very high quality.

Purchase from Current Connected.open_in_new
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SOK Battery | 206Ah 12v | LiFePO4 Battery
Higher capacity, or you can put multiple 100Ah batteries in parallel.

Purchase from Current Connected.open_in_new