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What is the Reserve Capacity rating (RC)?
The reserve capacity of a battery is defined as the number of minutes that it can support a 25 ampere load at 80°F until its terminal voltage drops to 1.75 volts per cell or 10.50 volts for a 12V battery. Thus a 12V battery that has a reserve capacity rating of 100 signifies that it can be discharged at 25 amp for 100 minutes at 80°F before its voltage drops to 10.75 volts.
What is OHM'S Law?
OHM'S Law expresses the relationship between volts (V) and amperes (A) in an electrical circuit with resistance (R). It can be expressed as follows: V= IR Volts (V) = Amperes (I) x Ohms (R). If any two of the three values are known, the third value can be calculated using the above equation.
Do I ever add acid to my battery?
Under normal operating conditions, you never need to add acid. For a standard auto or marine battery, only distilled, deionised or approved water should be added to achieve the recommended levels mentioned above. When a battery is shipped in a dry state or accidental spillage occurs, electrolyte should be added to the battery. Once filled, a battery should only need periodic water addition.
Do batteries self-discharger when not in use?
All batteries, regardless of their chemistry self-discharger. The rate of self-discharger depends both on the type of battery and the storage temperature the batteries are exposed to. However, for a good estimate, Trojan batteries self-discharger approximately 4% per week at 80°F.
