Battery management system (BMS) 8S20A is used for LFP 24V battery packs. It can be also used with 32700 Lithium Iron Phosphate cells of different size and shape.
The 8S20A LFP or LiFePO4 BMS has protection for the battery over charge and over discharge, over current, short circuit, over-temperature. Refer product specification for more details.
The BMS 8S 20A comes with equalization function which facilitate to keep the cells at same level and ensure prolong life. The components used in the BMS is
1) Highly integrated IC,
2) low resistance MOS, and
3) high current equalizer.One pack of BMS contains following items
1) Open BMS circuit board,
2) Wire with snap in connector for connection between cells and BMS.
8S20Amp 24V Lithium Iron Phosphate (LFP) BMS
1 Current
Maximal continuous charging current 20A
Maximal continuous Discharging current 20A
2 Over charge Protection
Over charge detection voltage for single cell 3.65V ± 0.025V
Over charge detection delay time 0.8S - 1.2S
Over charge release voltage for single cell 3.55V ± 0.025V3 Over discharge protection
Over discharge protection voltage for single cell 2.3V ± 0.03V
Over discharge detection delay time 0.8S - 1.2S
Over discharge release voltage for single cell 2.70V ± 0.03V
4 Over current protection
DischargeDischarge Over current 80 ~ 120A
Detection delay time 0.7 ~1.3SCharge
Charge Overcurrent Protection 30 ~ 50A
Detection delay time 0.8 ~1.2S
5 Short protection
Detection delay time 160~ 240us
Release condition Cut off load6 Input Voltage
Input voltage DC: 29.05V7 Balance current – 28 – 60mA
8 Current consumption by protection circuit Max 65 µA
9 IR Resistance of PCM ≤ 25mΩ10 Temperature
Discharge Temperature Protection 70°C±5°C11 Dimension
L75*W52*T9mm
