What Is Reserve Capacity On A Car Battery. An amp hour AH is a rating usually found on deep cycle batteries. Automotive battery reserve capacity is a rating to give you an idea of how long the battery can be discharged at a rate of 25-amps while still maintaining at least 175-volts per cell or 105 total volts.
Answer 1 of 8. Reserve Capacity RC RC is a general indicator of how long a new fully charged battery can continue to operate essential accessories if the vehicles alternator fails. The Battery Council International BCI assigns numbers and letters for each battery group size.
A car battery also has something called Reserve Capacity which is how many Amps y.
Answer 1 of 8. Lets start with cold cranking amps. The Reserve Capacity RC of a car battery is defined as the number of minutes the battery can provide 250 A of current at a potential difference of 105 V. This rating is a crucial parameter to judge batteries especially deep cycle batteries.
