About Payment 
 Shipping & Cost
 FAQ's
 Warranty/Return
 Battery SDS
 Battery Terminology
 Testimonials
 Battery Knowledge
 
Privacy Policy
 Export restrictions

 

Customer Reviews

5 Star Excellence award from Shopper Approved for collecting at least 100 5 star reviews


Security Verified Seal
 

Protection Circuit Module (PCM) for 7.2V/7.4V Li-ion (18650/18500) Battery Packs 5A limit with balance function (#365)


Your Price: $5.50
In Stock

Product ID # 365
Part Number:
PCM-S2A5B

 Protection Circuit Board Specifications  For 7.4V Li-ion/Li-po Battery  Pack 
Model:PCM-S2A5B
No. Test   item Criterion
1 Voltage Charging voltage DC: 8.4V CC/CV (4.2V/1cell)
Cell-balance detection voltage 4.20±0.025V
Cell-balance release voltage 4.19±0.025V
2 Current Cell-balance current 42±3mA
Current consumption for single cell ≤20μA
Maximal continuous Charging current 5A
Maximal continuous discharging current 5A
3 Over charge Protection
(single cell)
Over charge detection voltage 4.25±0.025V
Over charge detection delay time 0.5S-2S
Over charge release voltage 4.05±0.05V
4 Over discharge protection
(single cell)
Over discharge detection voltage 2.40±0.05V
Over discharge detection delay time 50-200mS
Over discharge release voltage 3.0±0.01V
5 Over current protection Over current detection voltage 0.2V±0.015V
Over current detection current 14±2A
Detection delay time   5ms-20ms
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-) ≤40mΩ
8 Temperature Operating Temperature Range -40 to +85℃
Storage Temperature Range -40 to +125℃
9 Weight   0.6Oz (17.0 grams)
10 Dimenstion L x W x T 32.5 x 16.5 x 1.85 mm
11 Specification in pdf file Download the specification  

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

Warning

  • 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.

Product Reviews

(0 Ratings, 0 Reviews)
Questions & Answers
avatar

Shopper Approved Q&A Shopper Approved Q&A Answerbase
view

We're currently collecting product reviews for this item. In the meantime, here are some company reviews from our past customers sharing their overall shopping experience.

  • 5
    21K+ (71%)
  • 4
    6493 (22%)
  • 3
    1836 (6%)
  • 2
    146 (0%)
  • 1
    116 (0%)
93% of customers rate this company 4- or 5-stars
Newest to Oldest
  • Highest to Lowest
  • Newest to Oldest
  • Favorite Reviews
All Ratings
  • All Ratings
  • 5 ★ Reviews
  • 4 ★ Reviews
  • 3 ★ Reviews
  • 2 ★ Reviews
  • 1 ★ Reviews
Ronald R. Verified Customer   
03-15-25

Easy to navigate site made finding required items easy.

Recommend this Company
5 / 5
Would Buy Again
5 / 5
John M. Verified Customer   
03-13-25

Excellent. Thank you so very much. John

Recommend this Company
5 / 5
Would Buy Again
5 / 5
Jonathan W. Verified Customer   
03-12-25

Thanks

Recommend this Company
5 / 5
Would Buy Again
5 / 5
---------------------------
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