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Jag35

SLM12 LiFePO4 12v 50A 4s Battery

SLM12 LiFePO4 12v 50A 4s Battery

Regular price $99.00 USD
Regular price $200.00 USD Sale price $99.00 USD
Sale Sold out
Shipping calculated at checkout.

PLEASE READ THE DESCRIPTION CAREFULLY.

Shipping to Lower 48 USA states only via Fedex Ground Shipping. No international shipping including Hawaii, Guam, Puerto Rico. Non-USA customers click here.


Easy to use! 12v 50Ah 600Wh LiFePO4 energy storage in 4s configuration using A123 LFP cells. Capable of continuous power output of  50A on the XT connector, 100A wired directly on battery terminals. Safer LFP chemistry, better temperature stability and tolerance compared to regular li-ion 18650 cells. Ultra thin design = small size and ability to accommodate many applications. Heavy lugs not included. There is no BMS on these cells > LiFePO4 BMSs sold separately here. See BMS PCB video here.

NOTE: For any lithium iron phosphate batteries, state of charge cannot be determined by voltage alone, you need to count Amp Hours or Watt Hours. Typical behavior is for the "Resting Voltage" to be 13.2VDC a few hours after your charging session.

** NOTE:  To get an accurate shipping price when buying more than x4 sets, email support@jag35.com

12v 50A B-GRADE packs HERE.
12v 100A version available HERE.
24v 50A version available HERE.

 

Use as an Expansion Battery:

This battery pack can serve as an expansion battery. Connect multiple in series to increase the charging speed (volts), or connect multiple in parallel to increase capacity and current (amps), see your device specs for max limits. Use with:

 

Pack Specifications:

  • Battery Type: 12v
  • Battery Type:  Lithium Iron Phosphate
  • Battery Capacity:  50Ah
  • Watts: 600w
  • Continuous Power Output:  50A on XT90 connector / 100A wired directly on battery terminals
  • Cycle Life: 6000 cycles
  • Module Dimensions:  2.5" x 9.25" x 12.25"
  • Recommended Charging Voltage: 14.6VDC
  • Resting Voltage (after 12 hrs): 13.2VDC


Cell Specifications:

  • Size: WX1213250
  • Type: Rechargeable
  • Voltage: 3.2V
  • Chemical Composition: Lithium ion
  • Charging Cut-off Voltage: 3.65V
  • Discharging Cut-off Voltage: 2V
  • Max Pulse Discharging Current: 250A (5C)
  • Max Continuous Discharging Current: 150A (3C)
  • AC Impedance: ≤1.2mΩ
  • Dimension: 267x240x11.2mm
  • Weight: 1171g
  • Max Continuous Charging Current: 100A (2C)

 

** NOTE:  To get an accurate shipping price when buying more than x4 sets, email support@jag35.com

 

Other parts you may need (This will require you to order all the components and assemble it yourself by soldering components into the board):

 

Charging

    We recommend fully charging this pack as soon as you receive it. Charger not included.

     

    12v 50A Schematic:
     

     

    Product video:


     

     

    NOTE: For any lithium iron phosphate batteries, state of charge cannot be determined by voltage alone, you need to count Amp Hours or Watt Hours. Typical behavior is for the "Resting Voltage" to be 13.2VDC a few hours after your charging session.

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    Note that these are reclaimed cells. These items are sold for DIY and Second Life purposes. Listings that are “untested” as sold as-is and cannot be returned, exchanged or refunded. We make no guarantees that all cells will be usable. Even when sold as “new”, “NOS”, or “like-new”, they may be in less than perfect condition. Buyer is responsible for proper cell recycling/disposal. Sold as-is. No refunds.

    If you buy a product from us and then realize you don't have, or don't want to acquire, the tool(s) or information needed to make our product(s) work for your specific build, this does not constitute valid grounds for replacements, exchanges or refunds. You are responsible for doing your due diligence before making any purchases.

    NEW YORK residents:
    On 3/2/2023 New York passed a law banning the sale of lithium-ion batteries for mobility devices that are not certified to UL 2271, and the assembly and reconditioning with cells removed from used batteries for commercial sale within the state of New York (more details here). New York residents, you are solely responsible for researching, understanding and complying with all pertinent regulatory rules, laws, statutes, and NY safety standards.

    Safety is important to us, we don't want people to get hurt or property to get damaged, especially when working with DIY and/or second-life lithium-ion batteries. All batteries everywhere are inherently dangerous, so we urge all who work with DIY and/or second-life lithium-ion batteries to take safety seriously so as to avoid causing any harm to self, others or property.

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