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Protection Circuit Module (PCB) for 7.4V Li-Ion Battery Pack (3.0A Limit)
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In Stock
Product ID # 2771
Part Number: PCB-LI7.4V3A
Quantity Discounts
| Quantity | Amount |
| 5 to 20 | $2.91 |
| 21 to 50 | $2.85 |
| 51 to 100 | $2.79 |
| 101 or more | $2.70 |
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| 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.
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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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