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


Shopper Award
Security Verified Seal

Li-Ion 18500 Battery: Custom 3.7V 4500mAh (16.65 Wh, 8A rate) Battery Pack

Your Price: $62.45
In Stock

Product ID # 12162
Part Number:

Lead time is 5 business days!


Voltage       3.7V (working)   4.2V ( peak)  2.5V ( cut-off)
Capacity       4500 mAh (16.65Wh)
  • P+= Red, P-=Black, NTC=Yellow 20AWG 55mm length open end wires.
  • Note:  wire length (pack to tip of wire) should be 50±3mm with insulation strip 1~2mm
  • 1x PCB(8.0A limit)installed with the  battery pack and protects the battery from
    • Over charge       (>4.2V)
    • Overdischarge   (<2.5 V)
    • Short circuits
  • 1x 100 kohms NTC 
Max. Discharging Rate        8.0Amp limited by PCB
  • 37mmx37mmx52mm
Weight        4 oz


  • Perfect for memory buck-up, external battery bank for MP3
  • Building battery pack for higher voltage or higher capacity w/o extra PCB.
  • You may connect two 3.7V 1400 mAh pack in either series or parallel connection for making a higher voltage or higher capacity pack.


  • Li-Ion battery may explode if misused.  We are not responsible for any damages or losses caused by misuse (including but not limited to: improperly charging/discharging, any changes of this battery pack, misassembling batterypacks).
  • Always charge battery with attention.  Battery pack should be placed in a fireproof place to avoid any accidents.
  • Please check battery polarity before connecting to a device
  • 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