Battery Protection Circuit Board for 7.4V Power Tool
|
No. |
Test item (25C) |
Criterion |
|
1 |
Overcharge protection voltage for single cell |
4.25 0.03V |
|
2 |
Over discharge protection voltage for single cell |
2.40 0.06V |
|
3 |
Over current protection current during discharging |
32 2A |
|
|
Over current protection current during charging |
3.0A |
|
4 |
Current consumed in normal operation |
11uA |
|
5 |
Short circuit protection |
Yes |
|
6 |
Over heat protection |
70C |
|
7 |
Interior resistance |
< 3.5mohm |
|
8 |
Working temperature |
-20 – 55C |
|
9 |
Size |
47 x 30 x 4.2mm |
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