You got too many batteries to tell which one still has power? We released the industry’s first battery with touch-activated power level display - XTAR AA 1.5V 3960 Battery. Simply touch the positive terminal to instantly see the power level and stay in control anytime. 
This new xtar AA Li-ion battery has 2500mAh high capacity, delivers 1.5V constant voltage output and max 3A discharge current. With low battery indicator, it can provide warning that the battery needs to be recharged and prevent devices sudden shutting off. So it’s more reliable and powerful than regular NiMH and alkaline AA/AAA cells, very suitable for devices that require long-term, steady high-voltage output.
Pls check details online: XTAR AA 1.5V 3960 Battery - XTAR
