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: 50.89V 14Ah (712.5Wh, 40A rate, INR18650 MJ1) - UN38.3 Passed

Your Price: From $1,055.00 to $1,115.00

Product Options



Voltage 50.89V (working)   58.8V ( peak)   35V ( cut-off)
Capacity 14Ah
  • Charge & Discharge terminal: 10" 12AWG wire
  • 5"  4 Pin Male JST(XH) for data
Protection 1x 50A PCM installed for protection. Use BQ78350
Cycle life >300 
Charge Current Standard: 7Amp / 0.5C; Maximum: 14Amp/1C
Discharge Current Standard: 2.8Amp/0.2C; Maximum: ≤40A, limited by the cells
Dimensions (LxWxH)

260mm x 78mm x 80mm

Weight (approx.) 6 LB 10oz (3kg)
Temperature Charge: 0°C to 45°C; Discharge: -20°C to 60°C;
Storage: 1 month: -20 to 60°C; 3 months: -20 to 45°C; 1 year: -20 to 20°C


  • Mobile Robot


  • Please wait 30 minutes after charged to allow PCM to balance the cells to achieve the best performance
  • Please never discharge the battery pack beyond its Max. rating
  • For safety warning please see the link here
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

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