A 1s 4a battery management system (BMS) is any electronic system that manages a rechargeable battery (cell or battery pack). Such as by protecting the battery from operating outside its safe operating area  monitoring its state, calculating secondary data, reporting that data, controlling its environment, authenticating it and / or balancing it.

Safeguard your Li-ion battery with our 1S 4A BMS module! This essential component protects against overcharge, over-discharge, and short circuits, extending battery life and also ensuring safety. Hence Designed for single-cell Li-ion batteries. Although it's perfect for DIY projects, power banks, and electronic devices. Available in Pakistan! Order now and protect your battery investment.

• HIGH-ACCURACY, HIGHLY DURABLE:  High-accuracy voltage detection circuit, fine workmanship and also durable. Effective life greater than 50000 hours.
• MULTIPLE PROTECTION:  Over-discharge protection, overcurrent protection, overcharge protection, also  short circuit protection. Although A combination of 4 safety features that work together to provide ultimate protection for your devices. Your chargers and also most importantly you.
• LOW STANDBY CURRENT: In addition MOS transistor can control the battery charge and discharge, low standby current consumption.
• WIDELY APPLICATIONS:  Use for variety of capacities and various shapes 3.7V lithium batteries. Massager battery pack, LED light backup power supply, solar street light battery pack, also monitor standby power supply, etc.

• ATTENTION: Hence  Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+: connection charge / discharge positive, P- connection charge / discharge negative. Otherwise it will cause damage to the chip. After connection,it need to first charge activation, then will have the output.

Moreover with over charge, over discharge, over current, short circuit protection function, for a variety of different shapes of 3.7V capacity lithium batteries. In addition Well-designed, comprehensive test. Compact size, suitable for many requirements of high integration, low cost occasions, can meet the performance requirements of many aspects, also to ensure the absolute safety of the battery group.

Specifications of 1s 4a battery management system :

• Charging voltage:4.2v
• Over Charge voltage:4.25v plus or minus 0.05v
• Over Discharge voltage: 2.45v plus or minus 0.05v
• Max Working current:4A
• Max peak current:5A
• Working temperature:-40 ~ +50 Celsius
• Storage Temperature:-40 ~ +80 Celsius
• Internal Resistance:MOSPET less than 40m ohm
• Life cycle:more than 30000 hours
• Short Circuit Protection: Hence Protectable, Delayed self-recovery
• Size:35 mm×4mm×2.2mm/ 1.38″ ×0.16″×0.09″(L x W x H)

Suitable for:

• For nominal voltage 3.7V lithium battery(Including 18650,26650, also lithium polymer batteries)

Attention for 1s 4a battery management system :

• Strictly according to the diagram wiring: B+: connected battery positive, B-: connect to battery negative, P+: connection charge / discharge positive, P- connection charge / discharge negative, Otherwise it will cause damage to the chip.
• After connection,it need to first charge activation, then will have the output.

Package inlcuded:

• 1x 1S lithium Battery Protection Board

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