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: 14.54V 21Ah (305Wh, 30A rate, INR18650 MJ1)

Your Price: $382.80
In Stock

Product ID # 11449
Part Number:

Lead Time: TBC
 *Important Shipping Regulation This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...
  • 14.54V 21Ah battery pack is made by 24 pcs 18650 3500mAH INR18650MJ1
  • Configuration: 4x6 with battery holder
  • The battery pack is wrapped with heavy duty shrink tube
 Voltage        Nominal: 14.54V; Charge Cut-off: 16.8V; Discharge Cut-off: 10V
 Capacity        21 Ah
  • 1x PCB (30A) is installed with the battery pack and protects the battery
 Terminal        14" 14 AWG wires
 Charge Current        ≤10Amp / 0.5C
 Max. Discharging Rate        30 Amp limited by PCB
 Dimensions (LxWxH)       5.3" x 3.25" x 2.75"  (137x83x70mm)
 Weight       2 lbs12.6 oz   (1260g)
 Temperature        Charge: 0 to 45°C
       Discharge: -20 to 60°C
       Storage: -20 to 50°C
 Related Products


  • Always pay attention when charging the battery pack. Battery shall be put in a fireproof place or fireproof container to avoid any accidents.
  • 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

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