Whats the lifespan of deep-cycle batteries?
Battery life is directly related to how deeply they are discharged use after use. If a battery is discharged only 50% each day, it will have double the lifespan of if it’s routinely discharged 80% (this is why it’s inadvisable to use a power wheelchair several days before recharging the batteries). In everyday terms, someone who dramatically drains the batteries everyday may only get a year or less out of a set of batteries, where as a light users, who recharges fully after every use, may get several years of battery life. (Of course, poor charging habits overall will reduce the lifespan of the batteries, as well.) Still, this doesn’t mean that one can’t occasionally dramatically drain one’s batteries; however, the less one repeatedly discharges batteries over the longterm, the longer they’ll last.
