What is Battery Power Capability?

Power capability:

It means the amount of current that the battery can deliver. It is also known as C-rating.

Theoretically, it is calculated as A-h divided by 1 hour.

Fig: 350 Ah battery

Example: Let’s consider a battery which has 350 Ah of power capacity.

After dividing 350 A hour/1 hour gives 350 A  = 350 C

So, a battery with 350 Ah of capacity will have a C rating of 350 C which means the battery has a capability of delivering 350 A of current at a constant voltage (fixed voltage/rated voltage).

If a battery has 1C rating then the battery has a capability of delivering 1A of current.

Note: Higher the C rating, more the current that can be drawn from the battery.