Electrical Systems, Charging and Solar Electrical components and wiring, batteries, charging systems, generators and solar topics.
Thread Tools Search this Thread Display Modes
Old 09-06-2020, 08:43 PM   #1
Join Date: Jul 2011
Location: southern california
Posts: 36
Default Disable Battery Charger

Is there an easy way to disable the onboard battery charger when hooked to a generator?

My Cummins Onan QD 7.5 is getting a code 27 and one of the possible causes is interference with two 12 volt charging sources.

One source is the generators onboard charger

The second source is the HI-LOs charger

quickfarms is offline   Reply With Quote
Old 09-06-2020, 10:48 PM   #2
Site Team
JackandJanet's Avatar
Join Date: Jul 2010
Location: Pine, AZ
Posts: 3,482

It's not exactly easy, but you could pull one of the two 30A fuses in the converter. On my Elixer converter if one of these is blown, it will stop the battery from being charged.

Alternatively, you could disconnect the converter charging wire from one of the two 30A circuit breakers in the battery box. That's probably easier than pulling a fuse. Here's how mine is wired, your's could be different: https://www.hilotrailerforum.com/att...ary-wiring.jpg It's the #8 black wire on the extreme right side in the diagram.

You could also put a simple ON/OFF switch in that wire too, up next to the circuit breaker, to simplify cutting it off.

Beyond that, I don't know of any way to disable the converter battery charger when the converter is getting power from a generator. Disconnecting the battery would also stop charging, but it would kill all your DC equipment too.

- Jack
Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH
2014 F150 Platinum 4x4 3.5L EcoBoost SCrew
JackandJanet is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by Hi-Lo Trailers Worldwide or any of its affiliates. This is an independent, unofficial site.

All times are GMT -5. The time now is 07:21 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
HiLoTrailerForum.com Copyright 2010