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LiFePO4 18650 Battery: 6.4V 3000mah (Square, 19.2Wh, 8.4A rate)

Your Price: $42.95
Build to order

Product ID # 3790
Part Number:

Lead Time: 5 Business Days! Hazardous handling fee required*

Quantity Discounts

5 to 20$41.66
21 to 50$40.80
51 to 100$39.94
101 or more$38.65


*Important Shipping Regulation This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...
Voltage 6.4 V (working)   7.6 V (peak)  5.0 V ( cut-off)
Capacity 3000 mAh
Prewired Charging/Discharging 6" 18 AWG open end wires
  • 2x PCB (5A limited) installed with the  battery pack and protects the battery from
    • Overcharge       (>7.7V)
    • Over discharge  ( <4.46 V)
    • Over drain ( >10 Amp)
    • Short circuits
  • 2x 4.2 Amp polyswitch installed to limit  max. discharging current and to protect wrong polarity 
Cycle Life   >1000 cycles (80% of initial capacity @ 0.2C rate, IEC Standard) 
Charging rate 1.2A ( recommended ),  1.35A max.
Max. Discharging Rate 8.4 Amp limited by polyswitch (lower rate available upon request)
Dimensions(LxWxH) 40mm (1.6") x 40mm (1.6") x 75mm(3.0")
Weight 5.2oz / 147g


  • Replace 6V NiCd and NiMH battery packs for higher energy density
  • External battery pack to run 6V DC devices, such as digital camera 
  • If connect two modules in parallel, you can build a 6.4V 6.0 Ah Battery pack with a 8.4 Amp discharge rate.


  • 6.4V LiFePO4 battery pack shall be cut-off at 7.6V during charging and 5.0V during discharging   
  • Please click Knowledge on LiFePO4 battery to learn more detail
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

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