Brand New Top Quality 4A-5A PCB BMS Protection Board For 4 Packs 18650 Li-ion lithium Battery Cell
Charging voltage range: 4.25-4.35v +/- 0.05v
Dimensions: 48 * 15 * 1.0mm
Over-discharge voltage range: 2.3-3.0v +/- 0.05v
Maximum operating current: 4-5A
Operating temperature: -40 ~+ 50C
The maximum instantaneous current: 6-7A
Storage conditions: -40– + 80C
Quiescent Current: less than 6uA
Effective life: more than 50,000 hours
Resistance: less than 45mΩ
Short circuit protection: protect, need to be recharged recovery
Main functions and features:
Over charge protection, over-discharge protection, short circuit protection, over current protection.
The protective plate using Japan’s rechargeable lithium iron phosphate battery protection IC;
High-accuracy voltage detection circuit;
Terminal of the charger using high voltage devices;
Built-in three-stage over current detection circuit (over current 1, over current 2, load short circuit);
MOS transistor can be controlled by a battery charge and discharge;
Low standby current consumption.
Function and Description:
1.the lithium battery with protection board according to wiring diagram, when the battery voltage is overcharge and over-discharge voltage between the voltage, and P +, P- 1 second after charging, P + and P- output voltage of the battery voltage.
2.Battery charge function: between P + and P- plus charger, battery charging, the battery voltage charge to overcharge detection voltage (4.25 +/- 0.025V), the protection circuit to cut off the charging path, to achieve overcharge protection.
3.Battery over-discharge protection: in between the P + and P- connected load to the battery discharge when the battery voltage drops to over-discharge voltage (2.4 +/- 0.08V), the protection circuit, shut off the discharge path to achieve the over-discharge protection.
4.Short circuit protection: When the P + and P- short circuit protection circuit will act quickly in 5-50uS, cut off access, short-circuit protection.
Over current protection function: When the V- terminal voltage of (0.15 +/- 0.02V), the protection circuit will act quickly in 6.7-13.9ms, cut off access, over current protection.
Note: If the correct welding, testing the output of non-output, use other ways to activate charging about protection board!
1x 18650 Li-ion lithium Battery Cell