About Payment 
 Shipping & Cost
 Battery MSDS
 Battery Terminology
 Visit Our Plant
 Career Opportunity
 Battery Knowledge
Privacy Policy
 Export restrictions


Shopper Award
Security Verified Seal

Polymer Li-Ion Battery: 7.4V 3Ah (22.2Wh, 4.2A rate) with two pin female connector (1.8)

Your Price: $27.95
In Stock

Product ID # 4351
Part Number:

Lead Time: 10 Business Days!


* denotes required field

Add connectors*

Quantity Discounts

5 to 20$27.11
21 to 50$26.55
51 to 100$25.99
101 or more$25.16
*Important Shipping Regulation This pack is for testing (prototype) only. It has not been UN38.3 tested yet.  Read more...
Packing                             Made of 4 pcs Polymer Li-Ion Cell: 3.7V, 1500mAh, (PL-703562, 3A rate) - UL Listed  (2S2P configuration) 
Voltage Voltage: 7.4 V (working)   8.4 V ( peak)  5.0 V ( cut-off)
Capacity 3000 mAh
  • One PCB on the  37mm x 67mm top plane installed with the  battery pack and protects the battery from
    • Overcharge       (> 8.4 V)
    • Over discharge  ( < 5.0 V)
    • Over drain ( > 5 Amp)
    • Short circuits
  • One  4.2A polyswitch installed to limit  max. discharging current and to protect wrong polarity
Max. Charging Rate 1.5 A
Max. Discharging Rate 4.2 Amp limited by polyswitch ( lower rate available upon request )
Dimensions (LxWxH)

67mm(2.6") x 37mm(1.4") x 30(1.2")

Weight 119g (4.2 Oz )
Smart Tips

  • Perfect for super-bright bike headlight of 6 -10W.  Can replace any 6V NiMH battery or 7.2V Li-Ion
    • Light@ Motion:  Commutre and Solo Logic
    • Niterider:         Headtrip    
    • Nightpro:         Elite, torch, KAMIKAZE
    • Cygolite:         Rover
    • Viewpoint
    • Burning time:  6W Halogen: 5.7 hrs
    • 10W Halogen    3.5hrs 
  • Please don't throw away the connector in your old device system.  You may need the connector link to our battery.
  • If our connector can not fit to your device, you may remove old connector and change it to our universal connector
  • No memory effect and longer storage life than NiMH battery
  • Totally environmental friendly. 100% recyclable
  • Light weight and higher energy density than any rechargeable battery. Perfect for all types of RC devices, especially RC-airplane.
  • This Battery is not good for > 10 W halogen light due to PCB can not accept high initial current.  Not good for higher 4A drain's application
  • Li-Ion Battery may explode if charging or discharging improperly. User must have knowledge on how to charge and discharge Li-Ion battery before making Li-Ion Battery Pack.




Related Products

Product Reviews

(0 Ratings, 0 Reviews)
UN 38.3 Safety Test

We already set up our own UN38.3 testing lab. We can provide UN38.3 test service to our customer now.

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.
Thermal Abuse Test for IEC62133
Lithium Battery Shipping Regulation
Show & Conference
The Battery Show 2014, Sept. 16-18, 2014, Novi, Michigan, Booth# B1544
Energy Mobility 2014, booth#126, Apr 29-30, 2014, San Diego, CA
Lithium Battery Power 2013, Nov 12-15, 2013, San Diego, CA
The Battery Show 2013, Sept. 17-19, 2013, Novi, Michigan
More News...
An article about Nik Wallenda makes history crossing the Grand Canyon. He was carrying BSI 1080i mini POV cameras with LFH4S4R1WR battery build by us.

Mailing Lists