i work on average about 3 days a week about 4 - 6 hours a day, and i honeslty have only charged it 2 times, once about 3 months after i bought it and once at xmas as i had it out of the van, i only connect it when i am using it i dont leave it connected when driving around i only have the pump connected to it no controller or any thing to drain the battery
i got the battery from a garage near me told him what wanted it for and he said i know one which will last so had to order it in the pump i have is an 60 psi, pump from wintecs think it is a sureflo