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LiFePO4 14430 Rechargeable Cell: 3.2V 400 mAh, 0.4A Rate, 1.28Wh (Button Top, 4/5AA size) - UN38.3 Passed

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Your Price: From $1.45 to $4.45

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Nominal Voltage Average 3.2 - 3.3V
Nominal Capacity                  400mAh ( at 0.2C rate, 3.8V cut-off)
Energy density 75.29wh/kg
Max.Charging current 0.4A Max (0.1C rate) 
Max.Discharging current 0.8A max (0.2C rate)
Operation Temperature
  • Charging: 0 oC (32F) - 45 oC (113F)
  •  Discharging: - 20 oC (-4F) - 60 oC (140F)
Cycle Performance
  • >2000 (80% of initial capacity at 0.2C rate, IEC Standard) 
    • 2 times more than NiMH  and 10 time more than SLA
Dimensions (DxH) (max with tab) 14.0 mm (Max 14.2) (0.55") x 43.40 mm (Max 43.60) (1.7")
Weight 0.6 oz (17.0 grams)

Please download the Specification here


  • Li-Fe-PO4 battery must be cut-off at 3.8V/cell condition when charging
  • You must limit discharging rate below Max rate
  • Must use a Smart Charger (<0.4A) to charge this LFP cell
  • Please see our damage test report to understand our specs and limit your application within specs
  • Please don't use a NiMH/NiCD smart charger to charge this cell due to different voltage
  • Please read more info about LiFePO4 battery
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

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Product Reviews

(1 Rating, 1 Review) Average Rating:
Excellent service and products!
jkurata (Alhambra, CA) 6/27/2012 12:22 PM
Excellent service and products! I made a mistake and ordered the wrong charger on the online order. Called them and they made the correction for me and answered all my technical questions. Very satisfied with Battery Space!
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We own a national standard UN38.3 testing lab. We can provide UN38.3 test service to our customer.

If you want to set up your own lab, we also provide UN38.3 & IEC62133 equipments and onsite training. Email us for the quote and lead time.
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