7s 24V 20a BMS Electron Circuit Board for 25.2V 25.9V Lithium ion Batteries 21V 22.4V Electric Scooter LiFePO4 Battery Packs
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- Supplier: Shenzhen Keying Hengye Technology Co. Ltd.
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Product Overview
Description
Technical parameter
Product name:Protection Circuit Module
Model No:PCM-L07S20-C56 / PCM-L07S20-C56(A-1)
For 7S Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs
Product Feature:
1. Suitable for 7 section Lithium-ion/Lithium Polymer/LiFePO4 Battery Packs;
2. Maximum continuous working current 20a, same interface for charging/discharging;
3. Overcharge, overdischarge, short circuit, overcurrent, temperature protection, etc.;
4. There are equalization and temperature switches;
5. Using Monolithic ICMM3474 scheme.
. PCM-L07S20-C56 With balance and temperature switch
. PCM-L07S20-C56(A-1) No balance and temperature switch
Items | Specifications | ||
Lithium-ion/Lithium Polymer | LiFePO4 | ||
Charge | Charging voltage(CC/CV)-7S | 29.4V(4.2V/Cell) | 25.2V(3.6V/Cell) |
Maximal continuous charging current | 20a | ||
Discharge | Maximal continuous discharging current | 20a | |
Low current consumption | Current consumption on operation | 20μA | |
Current consumption at power down | / | ||
Cell-balance | Cell-balance detection voltage | 4.20±0.03V | 3.60±0.03V |
Cell-balance release voltage | 4.20±0.03V | 3.60±0.03V | |
Cell-balance current | 68±3mA | 58±3mA | |
Over-charge | Overcharge detection voltage | 4.25±0.025V | 3.900 ± 0.025V |
Overcharge release voltage | 4.15±0.05V | 3.800 ± 0.050V | |
Overcharge delay time | 0.5~2S | ||
Over-discharge | Overdischarge detection voltage | 2.50±0.062V | 2.00±0.080V |
Overdischarge release voltage | 3.0±0.075V | 2.30±0.100V | |
Overdischarge delay time | 100~250mS | ||
Discharge overcurrent | Discharge overcurrent detection voltage | 0.2±0.015V | 0.10±0.015V |
Discharge overcurrent delay time | 15~35ms | ||
Discharge overcurrent protection | 50±10a(adjustable) | ||
Release condition | Cut-off-load | ||
Short-circuiting protection | Load short-circuiting detection voltage | / | / |
Detection condition | Exterior short circuit | ||
Load short-circuiting detection delay time | 200~800μs | ||
Release condition | Cut-off-load | ||
Internal resistance | Static Drain-Source On-Resistance | <40mΩ(B- to P-) | |
Temperature | Wide range of operation temperature | 40 ~ + 85℃ | |
Storage Temperature Range | -40 ~ +125℃ | ||
Dimension | L137*W63*T7mm | ||
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