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


Shopper Award
Security Verified Seal

CMB for 11.1V Li-Ion Battery Pack (10A limit, RoHS Compliant ) with DC charging, Fuel Gauge and full protection (#4889)

Your Price: $43.95
In Stock

Product ID # 4889
Part Number:

Quantity Discounts

5 to 20$42.63
21 to 50$41.75
51 to 100$40.87
101 or more$39.55


  • Manufacture part# CMB-S3A3
  • CMB (Charging Manage Board) for 11.1V Li-Ion (10.0A limited) BatteryPack
  • The board is capable of being charged by14-22 DC adapter and discharged at the same time
    • Charging terminal will cut off @ 12.6V when fully charged. If the discharge terminal was being continuously discharged (at less than or equal to adapter's output current) until 9.0 +/- 0.25V, the charging terminal will reset and start charging automatically. (Please wait 10 min for LED 1 Flashing)
    • If the discharge current exceeds the charging current while charging, the battery will continue to discharge until 7.95 +/ 0.25V cut - off voltage and the charge terminal will NOT be reset to start auto charge (must disconnect the charge terminal or ac power to adapter to start charging)!
  • 3 cells Li-Ion battery pack ( Li-Co or LiMnNiO ) protection with 3A Max charging rate & 10A Max discharging rate
  • Dimension(LxWxH): 82mm(3.2") x 82mm(3.2") x 20mm(0.8")
  • Weight: 1.8Oz (50.0 grams)
  • RoHS Compliant
  • Please click here to download the specification

  • J1: Input Terminal
  • P+/P- : Output + / Output -
  • SW: Fuel Gauge LED lights Press Switch


  • Please read the instructions carefully before assembling to battery pack.
  • LED Fuel Gauge only serves as a reference not to be used as an accurate capacity indicator
  • Must connect with correct AWG wire based on American Wire Gauge table ) (Please clickhere to view)
  • Batteryspace is not responsible for any damage caused by misunderstanding and misuse!
  • California residents: Warning: Cancer and Reproductive Harm - See Prop 65 Warnings

Related Products

Need 5.5mm x 2.1mm male barrel plug for DIY? Please click here to order separately

Related Products

Product Reviews

(1 Rating, 1 Review) Average Rating:
Nice but how to use it ?
Yannick Douvry (Loos, ) 5/11/2016 6:26 AM
Hello ! This stuff is really neat when it works ! However I first had some difficulties to assemble it and I have burned some ICs. So I had to buy a new one : everything is good this time. A schema would have been very appreciable in order to know without ambiguities where to connect the appropriate wires, as it is shown in other models on this website. For your future customers' sake, is it possible to update the webpage please ? Thank you in advance. Sincerely yours
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