Quote:
Originally Posted by helmincamaro
 My '97 still has the factory motors.... it does go a lot slower with both, so I usually roll both up at different times. I know on mine I can roll them up and down with the ignition off (til the doors open).... but it really bogs down, do you think that could cause it to wear down faster? I try to take it easy on it and rarely do it with the key out. |
I don't know if it will be faster, but you are basically doing the same thing with engine off. The altenater recharges the battery, so with the engine off you are relying only on the strength of your battery. If your battery is a little weak and not holding a full charge you will be low on voltage with the engine off. Basically causing the same effect as splitting the voltage. Then you have to decide is my battery weak or is my altenater not fully charging it back up. That is why I usually twice a year stop by Autozone and have them do a complete check on the charging system, they do it free of charge. You also have to remember when your ignition is off before you open the doors, other things are still pulling on the battery as well, like the radio and blower motor or whatever else you have left on. Its a nice convenience to be able to do those things before you open the door, but not good on the charging system.