Battery Ah Rating. To determine the ah rating of a 12 volt battery use a multi meter. Draw from the battery for 20 hours and it will provide a total of 100 amp hours. In our previous post we focused on the definition of a battery s voltage and how it affects the battery s performance now we look deeper into another factor which greatly affects our batteries the ampere hour or amp hour rating.
Battery application technology. C 2 88 ah 0 8 3 6 ah battery keep going step 3.
Connect a basic resistor across the battery s terminals then monitor the discharge over time until the voltage decreases to 12 volts.
Battery application technology. Rate of discharge considerations. In our previous post we focused on the definition of a battery s voltage and how it affects the battery s performance now we look deeper into another factor which greatly affects our batteries the ampere hour or amp hour rating. In general terms the capacity of a cell battery is the amount of charge available expressed in ampere hours ah an ampere is the unit of measurement used for electrical current and is defined as a coulomb of charge passing through an electrical conductor in one second.