This 3A 1S BMS PCM battery protection board is designed for 3.7V lithium-ion batteries, including 18650 cells, and provides essential protection functions for small rechargeable battery projects.

Key Features

• Supports over-charge protection, over-discharge protection, short-circuit protection, and over-current protection.
• Suitable for 3.7V Li-ion lithium battery applications.
• Listed for 18650 battery use in the source title.
• Connection pads marked B+, B-, P+, and P- for battery and output/input wiring.

Technical Specifications

• Product type: BMS / PCM battery protection board
• Battery type: 3.7V Li-ion lithium battery
• Compatible cell format: 18650, as listed by supplier
• Current rating: 3A, as listed in product title
• Over charge release voltage: 4.275±0.025V
• Over charging voltage range: 4.075±0.025V
• Over discharge voltage range: 2.5±0.1V
• Over current detection current: 2.8±0.3A
• Connections: B+ to battery positive, B- to battery negative, P+ to battery output/input positive, P- to battery output/input negative