Deep Discharge Protector for 3.6V Li-Ion Battery

https://www.electronics-lab.com/deep-discharge-protector-for-3-6v-li-ion-battery/

A rechargeable battery’s load should be disconnected at the point of complete discharge, to avoid a further (deep) discharge that can shorten its life or destroy it. Because a battery’s terminal voltage recovers when you disconnect the load, you can’t simply disconnect the load when the terminal voltage dips below the established threshold and then […]