2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS Balance Version

Description:

The 2S-4A 18650 Polymer Lithium-Ion Charger Module is a compact battery charging and boost module designed for 2S lithium-ion battery packs. It accepts power through a convenient USB Type-C input and is designed to charge a 2S battery configuration to approximately 8.4V.

The module supports commonly used 3.7V Li-ion cells, including 18650 and 14500 batteries, when configured as a suitable 2S pack. It provides up to 4A charging current according to the product listing and includes built-in protection features intended to improve battery and module safety.

Its compact design makes it suitable for DIY electronics, portable power projects, battery packs, and other rechargeable lithium-ion applications.

Specifications:

Features:

• 2S lithium-ion battery support – Designed for two Li-ion cells connected in series.
• 8.4V charging output – Suitable for charging a 2S Li-ion battery pack.
• Up to 4A charging current – Provides high-current charging capability when used with an appropriate power supply and battery pack.
• USB Type-C input – Convenient and widely available charging interface.
• Battery protection – Includes protection against overcharge, over-discharge and short circuits.
• LED indicators – Provides visual charging/status indication.
• Compact PCB design – Easy to integrate into DIY electronics and portable projects.
• High efficiency – Designed for efficient power conversion and charging.
• Wide battery compatibility – Suitable for compatible 3.7V Li-ion cells such as 18650 and 14500.
• Easy to integrate – Useful for custom battery-powered electronics and portable devices.