Regular AA & AAA batteries are rated 1.5V and rechargeable ones are rated 1.2V why the dif and does it make a dif to the devices using them? - Quora
![batteries - How much energy is stored in a AA battery when its voltage has dropped to 1.2V? - Electrical Engineering Stack Exchange batteries - How much energy is stored in a AA battery when its voltage has dropped to 1.2V? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/0cr7H.png)
batteries - How much energy is stored in a AA battery when its voltage has dropped to 1.2V? - Electrical Engineering Stack Exchange
![Calculate battery percentage of alkaline batteries using the voltage - Project Guidance - Arduino Forum Calculate battery percentage of alkaline batteries using the voltage - Project Guidance - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/4/f/b/4fb4c2ea2089fcb813319675818c533aaa540806.png)
Calculate battery percentage of alkaline batteries using the voltage - Project Guidance - Arduino Forum
![battery charging - Is the discharge rate for all AAA batteries the same? - Electrical Engineering Stack Exchange battery charging - Is the discharge rate for all AAA batteries the same? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/ND3CP.png)