Description

SLM121 LiFePO4 12v 200A 4s2p 1200Wh Battery

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 200A 100Ah 1200Wh LiFePO4 energy storage in 4s2p configuration using A123 LFP cells. Capable of continuous power output of 200A on the XT connector, possibly more wired directly on the 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. There is no BMS on these packs.

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.

2 available items (choose from the dropdown menu):

• Battery only – 12v 200A 100Ah 4s2p 1200Wh LiFePO4 Battery (200A BMS unit sold separately here)

  
  

• BMS PCB only – 12v 200A BMS PCB board and hardware (battery sold separately). 200A BMS unit sold separately here.

Additional BMS PCB Components available here:

• 200A 12v LFP BMS module – https://s.click.aliexpress.com/e/_Afsy6d

• 16pin IDC connector (male) – https://amzn.to/3pkLNjq

• 16pin IDC Connector (female) – https://amzn.to/3pka09u

• 16pin IDC Ribbon Cable – https://amzn.to/3Qr7bzf

• XT90 Connector (female) – https://amzn.to/3zYQFiU

• XT60 Connector (female) – https://amzn.to/3C6aAzo

• Standoffs (M5x25) – https://amzn.to/3QJLOsJ

• M5 Nuts – https://amzn.to/3bS5SKS

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:

• EcoFlow Delta Max 2000 (Solar Charging Input 800W Max, 11-100V, 13A). May require an XT90 connector adapter.
• EcoFlow Delta Max 1600 (Solar Charging Input 800W Max, 11-100V, 13A). May require an XT90 connector adapter.
• EcoFlow Delta Pro (Solar Charging Input 1600W Max, 11-150V, 15A Max). May require an XT90 connector adapter.
• EcoFlow Delta Mini (Solar Charge Input 300W 11–75V DC 10A max). May require an XT60 connector adapter.
• Bluetti AC300 (Solar Input 2,400W Max., VOC 12-150VDC, 12A). May require an XT60 connector adapter.
• Bluetti AC200 Max (Solar Input 900W Max., VOC 10-145VDC, 15A). May require an XT60 connector adapter.
• Bluetti EB240 (PV Max Input Power MAX 500W/10A, OCV 16V~68V /MAX10A). May require an XT60 connector adapter.
• EcoFlow River (Solar Charge Input 200W 10-25V DC 12A Max). May require an XT60 connector adapter.
• EcoFlow River Max (Solar Charge Input 200W 10-25V DC 12A Max). May require an XT60 connector adapter.
• EcoFlow River Pro (Solar Charge Input 200W 10-25V DC 12A Max). May require an XT60 connector adapter.
• Bluetti EB70 (Solar Input 200W Max., VOC 12-28V, 8A). May require an XT60 connector adapter.
• Bluetti EB55 (Solar Input 200W Max., VOC 12-28V, 8A). May require an XT60 connector adapter.
• Bluetti AC50S (12V/24V AC-Solar-Car-Generator Recharge). May require an XT60 connector adapter.
• Similar spec portable power stations.

 

** NOTE:  To get an accurate shipping price when buying more than x4 sets, email [email protected]

 

12v 50A 600Wh 4s version available HERE.
24v 50A 1200Wh 8s version available HERE.

Pack Specifications:

• Battery Type: 12v
• Battery Type:  Lithium Iron Phosphate
• Battery Capacity:  100Ah
• Battery Output:  200A
• Watts:  1200w
• Continuous Power Output:  200A on XT90 connector
• Configuration:  4s2p
• Cycle Life: ~6000 cycles
• Module Dimensions:  4.5″ 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 [email protected]

 

Other parts you may need:

• 16-pin IDC male box connectors
• Ribbon cable with 16-pin IDC female connectors, x6 sets

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Charging

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

Product video (12v):

 

BMS Wiring:

 

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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 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.