7S 8S 15A Lithium ion Battery Protection Board For Battery Pack BMS
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7S 8S 15A Lithium ion Battery Protection Board For Battery Pack BMS

LWS® is true 7S 8S 15A Lithium ion Battery Protection Board For Battery Pack BMS factory, supply OEM/ODM and custom service Provide high quality with smart balance function, wholesale price, environment, ISO9001/ISO14001/CE/ROHS certificates. Brings the industry's high-end talents for R&D, engineering, and management, with strong design and development capabilities and quality assurance capabilities, perfect quality management systemto provide high quality 7S 8S 15A Lithium ion Battery Protection Board For Battery Pack BMS.

Model:LWS-7S15A-281

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Product Description


Product Introduction

LWS® battery protection board 7S 8S 15A Lithium ion Battery Protection Board For Battery Pack BMS always monitor the state of battery, when 4.25V or so to stop charging, the battery voltage is lower than 2.7 V or so to stop discharging, limit the output current, output short circuit to stop discharging, delay self-recovery, intelligent control of charging current, prevent damage to the battery, can greatly improve the service life of lithium battery.

Product Parameter (Specification)

LWS® PCM Specifications  For 25.9V (7S)Li-ion Battery Packs

No. Test item Criterion
1 Voltage Charging voltage DC:29.4V  CC/CV
Single balanced voltage
2
Current Balance current for single cell
Current consumption
≤50μA
Maximal continuous charging current 5A
Maximal continuous Discharging current 15A
3 Over charge Protection(single cell)
Overcharge detection voltage
4.25±0.025V
Over charge detection delay time 10mS—1200mS
Over charge release voltage for single cell 4.15±0.025V
4
Over discharge protection (single cell)
Over discharge detection voltage for single cell
2.7±0.08V
Over discharge detection delay time 10mS—500mS
Over discharge release voltage for single cell 3.0±0.08V
5
Over current protection
Over current detection voltage 0.1V
Charge Over current detection
80±5A
Detection delay time 80ms—250ms
Release condition Automatic load recovery
6

Short protection
Detection condition
Exterior short circuit
Detection delay time 200—500uS
Release condition Automatic load recovery
7
Resistance Protection  circuitry(MOSFET)
≤20mΩ
8
Temperature
Operating Temperature Range
-20~+60℃
Storage Temperature Range
-20~+85℃

Product Feature and Application

Our 7S 8S 15A Lithium ion Battery Protection Board For Battery Pack BMS
PCM designed for 25.9V Li-Ion/Li-Po battery pack.
Prevents cell from over-charging and over-discharging.
Continuous working current at 15A.
Balancing feature available.


Product Details

7S 8S 15A Lithium ion Battery Protection Board For Battery Pack BMS
This board is not designed for high powered tools such as portable drills and alike, it’s for control battery charge and discharge and reduce standby current consumption, controls battery charge and discharge and reduces standby current consumption.


Notes

1) Wire connection strictly according to the drawing, do not intentionally short circuit.
2) Before charged, need to connect the cables first.
3) When the group of battery is connected in series, ensure that the voltage of each group of batteries voltage is the same. If not, fill each group of batteries separately before connecting them in series. In discharge tests, the group of cells with the fastest voltage drop is the differential cell.


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