Disconecting the Battery,will i have to

Reprogram everything again.

So my Ac delco battery is getting pretty tired and all,im going to upgrade to a optima.The thing that worrys me is that the min i disconnect that neg terminal the alarm brain will forget everything and the passkey 2 will forget its code thats programmed into the bypass module.

also if i ever have to jump start my car with my power pack will that do harm to the alarm brain and bypass module.

if i could get some help that would be great

thanks