What should a fully charged 12 volt deep cycle battery read?

Voltage on a fully charged battery will read 2.12 to 2.15 volts per cell, or 12.7 volts for a 12 volt battery. At 50% the reading will be 2.03 VPC (Volts Per Cell), and at 0% will be 1.75 VPC or less. Specific gravity will be about 1.265 for a fully charged cell, and 1.13 or less for a totally discharged cell.

Similarly one may ask, how many cells are there in a 12v lead acid battery?

So a 12 volt battery will be made up of 6 individual cells connected in series and fitted into a single case or container. It follows that a 6 volt battery has 3 cells and an 8 volt battery has 4 cells. The typical 12 volt lead-acid battery has 6 cells connected in series.

What is the voltage of a fully charged car battery?

12.6 volts

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