How Long Does Calculator Battery Last. My first scientific calculator was a TI SR-50 in later high school. If a battery has a battery capacity rating of 2000mAH it can supply 2000 milliamperes of current during its lifetime.
My dad has one somewhere that weve had for 20 years maybe I havent seen it in a while though since I took the front off and all the keys fell out. Then the battery will last for 20 hours. So how to calculate how long a battery will last.
Basically a 100 Ah battery means that such a battery can.
Well battery capacity 100 Ah load current 1 A thus such a battery will last for 100 Ah 1 A 100 hours. Enter the Watt Hours and Watts to calculate your battery life in hours. Battery capacity is a measure typically in Amp-hr of the charge stored by a battery. If you do not know you will need to contact the manufacturer to find out.
