use another battery to keep the system live,

clamp the ground wires to each other then remove the ground from the car battery then do the same with the positive wire then pull the old battery out then clamp the positive on the new battery first then the ground then remove jumper wires.

edit: you can also buy a battery back up that plugs into the cigy lighter

 

avant how hard of a process it is to do taht, i deff want to change the battery but i dont want to pay the price.

 

its not difficult at all, what your doing is keeping the system live with a spare battery using jump leads while you remove the old battery so they need to keep contact with thecar terminals for the batteryat all times it sounds complicated but its easy

 

can i use the battery that i am putting in the car replace the original, or do i need a 3rd.