Note: If the correct welding, testing the output of non-output,
use other ways to activate charging about protection board!Overview:
Main IC uses the original “Ricoh” imported components.
Overcharge, over discharge, over current, short circuit protection,
for a variety of capacities in various shapes 3.7V lithium batteries.
Japan protection IC, VISHAY, AOS, IR and other high-quality MOSFET, FR-4
plate low temperature coefficient, design, fine workmanship, testing and comprehensive.
Compact, suitable for many of the requirements of highly integrated,
low-cost applications to meet a wide range of performance requirements
to ensure the absolute safety and reliability of the battery pack.The protection board device description:
Components for Japan’s S-8254AAG protection chip; Genuine Bandai America’s AO4407 * 2pcs;
protect the chip as well as Ricoh R5431 series.Lithium battery protection board attributes:
Dimensions: 48 * 15 * 1.0mm
Charging voltage range: 4.25-4.35v±0.05v
Over-discharge voltage range: 2.3-3.0v ± 0.05v
Working temperature: -40 — + 50 c
Storage conditions: -40– + 80 c
Maximum operating current: 3A
The maximum instantaneous current: 4-6A
Quiescent Current: less than 6uA
Resistance: less than 45mΩ
Effective life: more than 50,000 hours
Short circuit protection: protect, need to be recharged recovery
Suitable for: 4packs 18650 lithium battery 14.8V 16.8VMain functions and features: over charge protection, over-discharge protection,
short circuit protection, overcurrent protection.
The protective plate using Japan’s Ricoh rechargeable lithium iron phosphate battery protection IC
1) high-accuracy voltage detection circuit
2) terminal of the charger using high voltage devices;
3) Built-in three-stage overcurrent detection circuit (overcurrent 1, overcurrent 2, load short circuit);
4) MOS transistor can be controlled by a battery charge and discharge;
5) low standby current consumption.
Function and Notice:
1, the lithium battery with protection board according to the wiring diagram connection,
when the battery voltage is overcharge and over-discharge voltage between the voltage,
and P +, P- charging 1 second, P + and P- output voltage of the battery voltage.
2, the battery charge function: between P + and P- plus charger to charge the battery,
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 (2.7 0.05V), 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.
5, Overcurrent 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, overcurrent protection