bms 7s 4S-7S 15A PCM Lithium Battery Protection Board FOR ELECTRIC TOOLS
Product Description
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- Supply OEM/ODM and custom service
- High quality with smart balance function
- Wholesale price
- ISO9001/ISO14001/CE/ROHS certificates
- Fast delivery
About the battery BMS/PCB/PCM
Function: Detect and protect the battery from over-charge ,over-dicharge, over-current short-circuit ,temperature detecting protection and auotmatically voltage balance function .
Build with high end electronic components (High End IC and MOSFET ) ,simple structure design will let it have more stable quality working performance , Flexible application ( it can be used for less series battery by leaving some connection pins at empty status ),full set of protection measures let it works well without any infulence from external unexpected accidents.
Shenzhen Li-ion Battery Bodyguard Technology Co,.LTD |
PCM Specifications For 25.9V (7S) Li-ion Battery Packs |
Model:LWS-7S15A-415(7S) Same port |
No. |
Test item |
Criterion |
1 |
Voltage |
Charging voltage |
DC:29.4V 4.2V/Cell |
Balance voltage for single cell |
|
2 |
Current |
Balance current for single cell |
|
Current consumption |
≤50μA |
Maximal continuous charging current |
15A |
Maximal continuous Discharging current |
15A |
3 |
Over charge Protection |
Over charge detection voltage for single cell |
4.25±0.05V |
Over charge detection delay time |
0.5S-1.5S |
Over charge release voltage for single cell |
4.15±0.05V |
4 |
Over discharge protection |
Over discharge detection voltage for single cell |
2.75V±0.05V |
Over discharge detection delay time |
50mS-150mS |
Over discharge release voltage for single cell |
3.0±0.08V |
5 |
Over current protection |
Over current detection voltage |
0.10±0.01V |
Over current detection current |
66±10A |
Detection delay time |
5-50mS |
Release condition |
Cut load,Automatic recovery |
6 |
Short protection |
Detection condition |
Exterior short circuit |
Detection delay time |
200-500us |
Release condition |
Cut load,Automatic recovery |
7 |
Resistance |
Protection circuitry(MOSFET) |
≤50mΩ |
8 |
Temperature |
Operating Temperature Range |
-40~+65ºC |
Storage Temperature Range |
-40~+85ºC |
Detailed Images
Wiring:
1. Connect Battery B- with BMS B- firstly!
2. Connect Battery1,Battery2,……Battwey6,Battery7 with the BMS as the picture shows.
(Please weld the wires in order and avoid pseudo solder joints.)
3. Connect Charger C-/Load P- with BMS C-/P- (Use larger size wires)
4. Connect Positive Pole: Charger C+/Load P+ with Battery Pack B+ (Use larger size wires) .
Pay attention to make insulation.