product manual:
6 strings of lithium ion batteries) 6 strings of 22V power tool solar lighting 18650 special ternary 3.7V lithium battery protection board BMS protection board, size: 50*32*3mm. Battery protection board, as the name suggests, battery protection board is mainly for rechargeable (general Refers to the integrated circuit board that protects the lithium battery. Lithium battery (rechargeable type) needs protection because of its own characteristics. Since the material of the lithium battery itself determines that it cannot be overcharged, overdischarged, overcurrent, short circuited, and ultra-high temperature charging and discharging, the lithium battery components of the lithium battery will always appear with a protection board with a sampling resistor and a current fuse.
Weight: Board=8g/PCS
Electrical parameters: (6 strings of lithium-ion batteries)
details | specification | unit | Remarks | |
Discharge | .Large discharge current | 15 | A | |
Instantaneous discharge current | 25 | A | ||
Recharge | Charging voltage | 25.5 | V | |
recharging current | 15 (MAX) | A | ||
Overcharge protection | Overcharge detection voltage | 4.28±0.05 | V | |
Overcharge protection delay | 0.1 | S | ||
Overcharge release voltage | 4.08±0.05 | V | ||
Power balance | Cell balance detection voltage | / | V | |
Cell balance release voltage | / | V | ||
Cell balance current | / | mA | ||
Over discharge protection | Overdischarge detection voltage | 2.55±0.08 | V | |
Over-discharge detection delay | 0.1 | S | ||
Overdischarge release voltage | 2.9±0.1 | V | ||
Overcurrent protection | Overcurrent detection voltage | 150 | mV | |
Overcurrent detection delay | 9 | MS | ||
Overcurrent protection current | 30±3 | A | ||
Overcurrent protection release conditions | Disconnect load | |||
Short circuit protection | Short circuit protection conditions | Short circuit of external load | ||
Short circuit detection delay | 250 | uS | ||
Short circuit protection release condition | Disconnect the negative switch | |||
Temperature protection | Temperature protection | / | °C | As required |
Internal resistance | Main circuit conduction internal resistance | ≤20 | mΩ | |
Self-consumption | Working current | ≤30 | uA | |
Sleep current (when the battery is over-discharged) | ≤10 | uA | ||
Operating temperature | temperature range | -30/+80 | °C |