Mini Maxx and Drained Battery Problem - Ford Powerstroke Diesel Forum
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Old 05-18-2012, 12:22 PM

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Mini Maxx and Drained Battery Problem

Hey guys, It's been a long while since I've been on here. Haven't had any problems at all with my set up (mini maxx HD300, 5" DP Back, Intake) until recently. I have recently noticed that something is draining the batteries on the truck when its sitting. If I don't drive it for about 2 days I'm having to jump it.

I don't think the batteries are bad. I think it is the tuner draining it. Any thoughts or experiences? Oh ya I have it powered directly from the port and not the ignition. I do turn it off when the truck is not running. I also noticed that recently the following would happen.

1. I turn on the tuner, wait for it to boot up.
2. Turn on ignition, start truck
3. Tuner shuts off and reboots by itself???
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Old 05-18-2012, 05:39 PM
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Normal. And the tuner would not drain your batteries in 2 days. Why don't you connect the remote lead? It's easy and makes operation simpler.
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Old 05-18-2012, 06:24 PM
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yup, takes a minute to wire up the key-on

the mini won't drain your batteries if it's turned off. I suspect you're leaving it on which also racks up engine hours
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