8.4 V

This module is perfect for making a 2S 7.4V Lithium-ion battery pack using   2 pcs 3.7V Li-ion cell. 2S 10A Li-ion Lithium Battery 7.4V 8.4V 18650 Charger Protection Board Module is a small PCB mounted Li-ion Lithium Battery charger protection module. This small and smart battery charger protection module comes with various features like Short circuit protection, Overcharge protection, Over-discharge protection, Overcurrent protection. It is very easy to install and convenient to use in all your DIY portable projects.