## How many years does a 12 volt battery last?

It is therefore not necessary to replace the battery after six years or 500 full cycles.

An average use of seven years is perfectly normal for 12-volt Gel or AGM batteries..

## How do you calculate how long a battery will last?

To determine how long your battery will last, calculate the battery’s total capacity and divide it by your circuit’s power. Multiply the battery’s reserve capacity by 60. With a reserve capacity, for instance, of 120: 120 x 60 = 7,200.

## How long will a 12v battery hold a charge?

A car battery usually holds 48 amps so if you take that it charges at approximately 1 amp per hour you can work out how long it will take to charge your battery with various amperage chargers. Charging your battery with a four amp charger will take about 12 hours to get a full charge out of this low amperage.

## Will a 12v fan kill a car battery?

It depends on the load (How much the fan draws from the lighter thing), and the capacity (amount of charge) of your Battery, and the amount of charge your Battery currently has. … Then you could plug the Fan into it directly. Your Fan would run Constantly without draining your car’s Battery at all .

## Are gel batteries worth it?

A gel battery is worth it because performance is optimized throughout its lifespan. … You don’t have a dwindling voltage, which is common with other batteries. Your application benefits from many deep cycles that have enough power for every accessory.