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Protection Circuit Module (PCB) for 7.2V/7.4V Li-Ion Battery Pack (5A Limit) (#3954)

Your Price: $3.95
In Stock

Product ID # 3954
Part Number:

Quantity Discounts

5 to 20$3.83
21 to 50$3.75
51 to 100$3.67
101 or more$3.55
Protection Circuit Module Specifications  For 7.4V Li-ion/Li-Po Battery  Pack
Over-charge protection voltage 4.350 ± 0.025V
Over-discharge protection voltage 2.30 ± 0.080V
Over-current protection 14~19A
Maximal continuous Discharging current 5A
Maximal Current consumption 20uA
Short circuit protection Automatic Recovery
Protection  circuitry  resistance ≤50mΩ
Dimension 48mm(1.9") x 8mm(0.3")x 2.5mm(0.1")
Weight 0.9 gram
Specification Download 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.

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Product Reviews

(2 Ratings, 2 Reviews) Average Rating:
items are working now, will buy again
rmsecurity (Miami, FL ) 6/27/2012 2:35 PM
The attention was great, wrote me to clear the order, it took a little bit too long to get in the UPS, but arrived OK, and the items are working now, will buy again Rafael Martinez Bogota Colombia
Rating on Li-Poly Protection Circuit!
(Unknown) 7/27/2008 7:04 AM
The BatterySpace Li-Poly Protection circuit PCS-S2A8 works excellent for all DIY and homemade Lithium Polymer batteries sold on Batteryspace and other brand Li-poly batteries. This PCB enables the user to easily attach two cells which equal up to 7.4 volts together (3.7v + 3.7v) and charge them safely. This product is quality because it doesn't overflow the batteries with too much current or voltage and keeps the user safe because using protection circuits properly will prevent explosions. It also prevents too much discharge from happening during use which saves the electronics that the power is being sent to. It has very simple instructions too. I find that with this Protection PCB Instructions I knew which parts to connect without much electronics knowledge. It only requires basic skills like soldering. The circuit is very space saving because of its small size. My purchase experience with Batteryspace was most pleasurable because they have very fair prices and the products are extremely durable. They have an enormous selection, which is great for making many different kinds of projects. I would most definitely purchase from them again because the shipping was very timely.
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
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