60A 11.1V 14.4V Lithium BMS System With For 3S Or 4S Li Ion Battery Pack
60A Constant Charge And Current 11.1V Or 14.4V Lithium BMS System With For 3S Or 4S Li Ion Battery Pack
Application :This is The BMS for 3 series 12.6V (11.1) V or 4S 16.8V (14.4V) Lithium battery pack with 60A constant constant discharge current ,Which would be applied for Conveter or solar power system .
| No. | Test item | Criterion | ||
| li-ion | lifepo4 | |||
| 1 | Voltage | Charging voltage | DC:16.8V 4.2v/Cell | DC:14.4V 3.6v/CV |
| Balance voltage for single cell | 4.20±0.025V | 3.60±0.025V | ||
| 2 | Current | Balance current for single cell | 42±5mA | |
| Current consumption | ≤20μA | |||
| Maximal continuous charging current | 50A | |||
| Maximal continuous Discharging current | 50A | |||
| 3 | Over charge Protection | Over charge detection voltage for single cell | 4.25±0.025V | 3.9±0.025v |
| Over charge detection delay time | 0.5S-2S | |||
| Over charge release voltage for single cell | 4.05±0.05V | 3.8±0.05V | ||
| 4 | Over discharge protection | Over discharge detection voltage for single cell | 2.5±0.08V | 2.0±0.08V |
| Over discharge detection delay time | 10mS-200mS | |||
| Over discharge release voltage for single cell | 3.0±0.1V | 2.5±0.1V | ||
| 5 | Over current protection | Over current detection voltage | 0.2±0.025V | 0.1±0.025V |
| Over current detection current | 150±30A | |||
| Detection delay time | 5ms-20ms | |||
| Release condition | cut load and recharge | |||
| 6 | Short protection | Detection condition | Exterior short circuit | |
| Detection delay time | 200-500us | |||
| Release condition | cut load and recharge | |||
| 7 | Resistance | Protection circuitry(MOSFET) | ≤20mΩ | |
| 8 | Temperature | Operating Temperature Range | -40~+65ºC | |
| Storage Temperature Range | -40~+125ºC | |||
Notes ; 1.Before the battery Pack , please grade your cell in good consistency condition ( voltage different should
not be more than 0.05V,inner impedance should be no more than 0.5mO,capacity difference should be no more than 30mA)
for NCM battery or Li ion battery , the intial voltage should not be more than 4V and should not be lowered than 3V ,the
battery should be connected in parallels first and then make series connection
2.Connecting B- wire first and then strictly in order from 1cell postitive to the 4 cell positive .
Note : Please conenct these wires in order strictly as above to avoid any potential damage of the battery BMS .
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