About Payment 
 Shipping & Cost
 Battery SDS
 Battery Terminology
 Battery Knowledge
Privacy Policy
 Export restrictions


Shopper Award
Security Verified Seal

Custom Li-ion 18650 Battery Pack: 7.2V 20.8 Ah (150 Wh, 2A rate, ICR18650B4)

Your Price: $149.95
In Stock

Product ID # 5966
Part Number:

Lead Time: 5 Business Days

*Important Shipping Regulation This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...
  • Customize 7.2V, 20.8 Ah battery pack is made by 16pcs of Sanyo/LG/Samsung 2600mAh cylindrical 18650 cells  packed in 2S8P configuration with with PCB and polyswitch for full protection
  • shrink wrap with thin PVC
Voltage Voltage: 7.2V (working)   8.4V ( peak)  5.0V ( cut-off)
Capacity 20.8Ah  ( 150 wh)
  • 1x PCB (3.0A limited) installed with the battery pack and protects the battery from
    • Overcharge       (>8.7V)
    • Over discharge   ( <4.6V)
    • Over drain        ( > 3 Amp)
    • Short circuits
  • 1x 2.0A polyswitch installed in the pack to limit  max. discharging current to 2.0 Amp and to protect wrong polarity
  •  6.0" 24AWG open wire   
Max. Discharging Rate
Dimensions(LxWxH) 132mm(5.2") x 56mm(2.2") 56mm(2.2")
Weight 740grams (1.0lbs 10.0Oz) 
Related product You shall choose Smart Charger (1.2A) for 7.4V Li-ion/Polymer Rechargeable Battery Packto recharge this battery pack. 
  • The estimated charging time is 25.9 hours    


  • We are not responsible for any damages or losses caused by misuse (included but not limited to: mis-charging, mis-discharging, any changes of this battery pack, mis-assembling battery packs)
  • Always pay attention when charging the battery pack. 
  • Please always check battery polarity before connection to device. Never make wrong polarity connection
  • For safety warning please see the link here 
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

Product Reviews

(0 Ratings, 0 Reviews)
What to consider when designing Lithium Batteries?
Bluetooth Technology for Lithium-ion/LiFePO4 Batteries
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
Mailing Lists