BATTERY DEAD...AGAIN...fml

[navigator32v]

There was a service bulletin and maybe a recall on the factory battery. I'd ask the dealership. They replaced mine under warranty. The stereo may or may not be related. Also, H3's have rundown protection which can take power from other systems.

[wannabeH3]

i took a volt meter and took one of the cables off the battery then put one lead from the volt meter on the battery and connected the other lead to the cable I took off, then i think i set it to the milli amp setting for load testing. once you re-attach the power the computers boot up and whatnot for a good minute or two and you see the power draws up to an amp for that duration then it should go down a bit. Mine was pulling nearly 900 milli amps which is quite a bit and enough to kill it in 2 days. i was sure it was my radio that I installed and lo and behold it was the back up cam attached to my radio. I attached the accessory wire to a hot wire by mistake, and so it was always on. once i fixed it the load dropped to about 600 m-amps or something ... its been a year anyways battery is great now.

you can use that method and just pull fuses one at a time starting with radio and back up cams and **** till you find the significant drop in power consumption

[f5fstop]

Do what Drtyfn suggests!

[f5fstop]

Originally Posted by navigator32v

. Also, H3's have rundown protection which can take power from other systems.

Technically not true. Rundown ptotection does NOT take power from another system.

[wpage]

Make certain you remove the key from the ignition. Whenever the wife borrows my H3 she fails to key off all the way when leaving key in and it stays on and fries the battery overnite...

It seems like the key is off when in fact it is on. Over time it will lock up your ignition. The battery will be dead and you wont be able to even remove the key from the ignition.