hey people... with this PC im running in my car, and with my amps and other electrical things, im sucking up a whole lot of power out of my poor battery... im planning on sticking an extra battery in the boot to run my PC and amp. probably a heavy duty long lasting whopper battery... im just wondering, how do you keep it charging? just run a line from the alternator into what? positive or negative? what im concerned about is drawing too much power from the alternator and it not being able to handle it... so if i need to buy a new/bigger one, where can i get one from? can i stick any larger alternator on or does it have to be made for a corolla? has anyone upgraded their alternator yet? i dont really know how an alternator works, except the thingo inside spins like crazy with the engine, creating power, which is then stored in the battery... anything else i should know?