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High Power Polymer Li-Ion Cell: 3.7V 4000 mAh (6050140-10C) 14.8Wh, 40A rate - UN38.3 Passed -

Your Price: $19.95
In Stock

Product ID # 3254
Part Number:

Quantity Discounts

5 to 20$19.35
21 to 50$18.95
51 to 100$18.55
101 or more$17.95


Chemistry Polymer Li-Ion 6050140-10C cell
  • Nominal:  4100mAh 
  • Min.  4000 mAh  
  • Average: 14.8 Wh  (Capacity will reduce with cycle life , Battery labeled with Min. capacity at 300 cycles
  • Energy Density: 174 wh/kg
Cycle life > 500 times
Charging rate recommend: 2A  (0.5C rate) Max: 4A
Discharging Rate  40A Max.  (10 C rate)
Dimension(LxWxH) with tolerance +/- 1 mm 141mm x 50.5mm x 6.0mm
Weight 3.0 Oz (85 grams)
Suggestions on designing Lithium battery packs What to consider when designing Lithium Batteries
Recognized or tested by one of NRTL (National Recognized Testing Laboratory) , for more information, please contact us

Please download the Specification here


  • Batteryspace.com is NOT liable for any mis-use due to any other brand of PCB applied 
  • Li-Ion Batteries may explode if charged or discharged improperly.
  • The end user must have the technical knowledge necessary to charge and discharge Li-Ion batteries before making Li-Ion Battery Packs
  • We must use a protection IC (PCB) to keep the battery and its pack from over charging and over discharging.
  • Please read more safety warning about Li-ion battery (click to link)
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

  • Please choose Our smart Li-Ion battery charger to recharge this battery to charge different voltage pack
  • If you DIY by yourself, you MUST install our PCB or your own PCB with the following feature:
    • 4.2V/cell over-charge protection
    • 2.5V/cell over-discharge protection
    • Max current over-drain protection
    • Short circuit protection. 
  • The polymer battery is excellent for ,EV(Electric Vehicle), e-bike , RC robot and other high drain DC device up to 100A
  • Need a high polymer Li-Ion battery pack? Please click here to order.
  • For battery packs build by 6050140 cells, please check here

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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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