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Polymer Li-Ion Cell: 3.7V 21Ah (1055275-2C, 77.7Wh, 42A rate) - UN38.3 Passed

Your Price: $66.15
In Stock

Product ID # 4162
Part Number:

Quantity Discounts

5 to 20$64.16
21 to 50$62.84
51 to 100$61.51
101 or more$59.53


Polymer Cell Polymer Li-Ion 1055275, UN Approved
  • Peak: 21000mAh (21Ah) (77wh)
  • Nominal: 18000mAh  (18Ah) (67wh)
  • Internal Resistance:  14 m-ohm
  • Energy density: 164 wh/kg (base on nominal capacity)
Cycle life > 500 times at 1C rate
Charging rate 10 A standard   and 21 A Max.  ( 1.0C rate)
Discharging Rate  42 A Max.  (2 C rate)
Dimension(LxWxH) with tolerance +/- 1 mm 275mm (10.8") x 55mm (2.2") x 10.5mm (0.4")
Weight 14Oz (406grams)
Suggestions on designing Lithium battery packs What to consider when designing Lithium Batteries

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
  • You 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

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Product Reviews

(1 Rating, 1 Review) Average Rating:
Please make some detailed manual for your product.
hansen_tanjung (Bandung, Indonesia) 6/1/2012 2:36 PM
Please make some detailed manual for your product.
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UN 38.3 Safety Test

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.
Lithium Battery Shipping Regulation
Recommendations on How to get ≤30% Rated Capacity for Shipping
Thermal Abuse Test for IEC62133
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