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Protection Circuit Module (PCB) for 7.4V Li-Ion Battery Pack (3.0A Limit)

Your Price: $2.95
In Stock

Product ID # 2771
Part Number:
PCB-LI7.4V3A



Quantity Discounts

QuantityAmount
5 to 20$2.86
21 to 50$2.80
51 to 100$2.74
101 or more$2.66
Protection Circuit Module Specifications  For 7.4V Li-ion/Li-Po Battery  Pack
Model:PCB-LI7.4V3A
Over-charge protection voltage 4.350 ± 0.025V
Over-discharge protection voltage 2.30 ± 0.080V
Over-current protection 7.5~9.5A
Maximal continuous Discharging current 3A
Maximal Current consumption 20uA
Short circuit protection Automatic Recovery
Protection  circuitry  resistance ≤50mΩ
Dimension 40.5mm(1.59") x 6.85mm(0.27") x 2.5mm(0.1")
Weight 0.1oz (3.0g)
Specification Download Specification

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

Warning

  • 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:
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EkriirkE
Erik Johnson (Dublin, CA) 10/27/2010 3:50 PM
This board appears to work, however as another reviewer commented the board will not activate even on a fully charged battery. My workaround for this was to solder a micro button between positive input and positive output, so when depressed there is a momentary bypass of the board which somehow kick starts it into action. I think I almost like this.
ratingratingratingratingrating
Works, but has a few quirks
D (San Jose, CA) 1/24/2010 1:04 PM
Appears to work as advertised, however the solder pads for the cell tabs are alarmingly close together. A steady hand is recommended when assembling a pack. Also, if you attach one of these to a battery pack and read zero volts across the output, trying connecting the charger to it (the assembled pack) for a moment, and then checking the output voltage again. It seems that occasionally the board won't activate until its put on a charger, even with fully charged cells attached.
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What to consider when designing Lithium Batteries?
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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.
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Lithium Battery Shipping Regulation
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Recommendations on How to get ≤30% Rated Capacity for Shipping
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Thermal Abuse Test for IEC62133
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Thermal Spread Material used in Battery Pack Assembly
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Show & Conference
33rd International Battery Exhibit, March 21-24, 2016, Florida, Booth#412
Lithium Battery Power and Safety, Baltimore MD, Nov 17-19, 2015
The Battery Show, Novi. MI, Sept 15-17, 2015 Booth#1716
Battery Power 2015, Denver, CO, August 5-6, 2015 Booth#29
Next Generation Batteries Conference, San Diego, CA, April 21-22, Booth#9
More ...
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