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


Shopper Award
Security Verified Seal

Custom Protection Circuit Module (PCM) for 6S Li-Ion Battery Pack at 70A limited with Thermostat (#12227)

Your Price: $51.00
In Stock

Product ID # 12227
Part Number:

 Protection Circuit Board Specifications For 6S Li-ion/Li-po Battery Pack with Thermostat
Model: PCM-LI21.6V70A
  • It has multifunctional safety protection of over charge, over discharge, over current, short-circuited, temperature.
  • It has balancing function under the state of charging.
  • The FET temperature is lower than 80℃ after discharging for over 2 hours at 70A under ambient temperature 85℃
No. Test   item Criterion
1 Voltage Charging voltage DC: 25.2V (4.2V/1cell)
Balance voltage for single cell 4.20V±0.05
2 Current Balance current for single cell 68mA±10mA
Current consumption for single cell ≤100μA
Maximal continuous Charging current 70A
Maximal continuous discharging current 70A
3 Over charge Protection
(single cell)
Over charge detection voltage 4.25±0.05V
Over charge detection delay time 0.5S-2S
Over charge release voltage 4.15±0.1V
4 Over discharge protection
(single cell)
Over discharge detection voltage 2.50±0.1V
Over discharge detection delay time 10MS-300mS
Over discharge release voltage 3.0±0.10V
5 Over current protection
Over current detection current 160±20A
Detection delay time   10MS-300mS
Release condition Cut load
6 Short protection Detection condition Exterior short circuit
Detection delay time 200-800us
Release condition Cut load
7 Resistance Protection  circuitry(B- TO P-) ≤20mΩ
8 Temperature Operating Temperature Range -40~+85℃
Storage Temperature Range -40~+125℃
9 Weight   4 oz
10 Dimenstion L x W x T 120 x 65 x 9.5 mm
11 Specification in pdf file Download the specification  

 For other PCM/PCB, please check our PCM/PCB/BMS/CMB/UPS category


  • If you want to use this protection circuit board for a battery that is less than the rated drain, you must add additional protection device to protect the battery itself. Such as: proper rated polyswitch. 
  • You must be professional in Lithium battery pack to buy the protection circuit board. Misusing may cause battery damage or explode. We are not responsible for any damage caused by user.

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