How To Determine Amp Hours Of A Battery. If you dont have the Ah value for your battery you can change the formula to this. How to Calculate Amps Watts Amp Hours Volts Hours for your Deep Cycle Batteries.
If you dont have the Ah value for your battery you can change the formula to this. So no more confusion on how to calculate battery life. This is the chart I came up with after I studied the charging time data provided by Schumacher a battery charger manufacturer.
The most common battery rating is the CCA or cold cranking amp rating.
60 watts 12 volts 5 Amps. Ah CCA725. In small batteries the amp hour rating is usually given in milli-amp hours mAh. Battery capacity Amperein ampere x Hour in hours here ampere is 32 Amp or take average.
