This 2 series 8.4V 20A lithium battery protection board is specifically designed for managing and protecting 3.7V nominal voltage batteries, including 18650, 26650, and polymer types. It ensures safe charging and discharging operations, making it suitable for various high-power applications such as electric drills and power batteries.

Key Features:

• Supports a charging voltage range of 8.4V to 9.0V.
• Provides a continuous discharge current up to 20A, with a continuous charging current limit of 10A.
• Includes balanced charging, recommended for power battery models such as SONY VTC4, VTC4A, VTC5A, and VTC6.
• Equipped with overcharge, over-discharge, and short-circuit protection to ensure battery safety.

Technical Specifications:

• Applicable Battery Type: 3.7V nominal voltage batteries (18650, 26650, polymer)
• Charging Voltage: 8.4V–9.0V
• Continuous Discharge Current (Upper Limit): 20A
• Continuous Charging Current (Upper Limit): 10A
• Balanced: Yes
• Overcharge Voltage: 4.2V ± 0.05V per cell
• Over-discharge Voltage: 2.5V ± 0.1V per cell
• Operating Temperature: -40°C to +85°C

This board is highly reliable, offering efficient power management for demanding applications while ensuring battery longevity and safety.