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High Power Polymer Li-Ion Cell: 3.7V 4000 mAh (14.8Wh, 6745135-10C, 40A rate) - UN38.3 Passed

Your Price: $21.00
In Stock

Product ID # 4108
Part Number:

Quantity Discounts

5 to 20$20.37
21 to 50$19.95
51 to 100$19.53
101 or more$18.90


Update Specification updated on 02/14/24
Battery cell Polymer Li-Ion 6745135-10C cell
Voltage Nominal: 3.7V
Charge Cut-off: 4.2V±0.10V  - CC/CV charge
Discharge Cut-off: 2.75V 
Capacity Typical: 4000mAh
Minimum: 3800mAh
25°C, 0.2C discharge
Charge Current Standard: 800mA / 0.2C
Maximum: 4000mA / 1.0C
0 to 45°C
Discharge Current Standard: 800mA / 0.2C
Maximum Continous: 40000mA/10C
Surge: 80000mA / 20C
-20 to 60°C
-20 to 60°C
0 to 45°C
Impedance ≤6mΩ 25°C, AC 1KHz after 50% charge
Dimension(LxWxH) with
tolerance ±1 mm
138mm x 46mm x 6.5mm  
Weight 85 g / 13.4oz  
Storage Temperature ≤1 month: -10 to 45°C;
≤6 months: 0 to 30°C ;
≤ 12 months: 20±5°C;
Best 20±5°C for long time
Suggestions on designing
Lithium battery packs
What to consider when designing Lithium Batteries

Please download the Specification here


  • After discharge at 10C for 6 mins, the temperature reaches 65°C. Suggest to have some cooling method when building into battery packs.
  • Batteryspace.com is NOT liable for any misuse 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
  • 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. ( 4 hrs charging time)
  • 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 e-bike , RC robot and other high drain DC device up to 40A
  • For battery packs build by 6745135, 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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