battery drain?

[Jackpine]

That's an interesting problem Lars! (Ain't progress wonderful?)

One of the f150Online members had a fuel pump relay that didn't open properly at shutdown, which put a big draw on his battery. He had to have the whole distribution panel (fuse box) replaced to fix it (since it's part of the panel and not replaceable).

To RGSMDNR, the BatteryTender or BatteryMinder is really not difficult to use at all. They come with a "quick plug in" connector that you can attach permanently to the screws on the battery posts. Then attaching the maintainer is a simple matter of raising the hood and plugging the maintainer in. Takes all of 10 seconds. It's MUCH more convenient than unplugging and plugging in the Gryphon. If I'm going to change the tune in my PCM, I just leave the maintainer connected, that way I know the battery is being held at near full charge.

I actually prefer the BatteryMinder, since it has a desulfation circuit. Here's a link to their website: http://www.batteryminders.com/batter...o-p-16134.html

You can get them for around $42 online now I see. Sorry if it sounds like I'm selling them, I'm not. It's just that I see it as a perfect solution for trucks that sit for long intervals. There's no way, short of disconnecting the battery or pulling fuses that you can get rid of the truck's parasitic draw.

- Jack