Chassis/House Battery Charging 4 Motorhomes

[cooperhawk]

Originally Posted by Pat370

The 370LE MH system is not the same as all other models.
On all 370's came standard with a inverter charger not a
converter charger like on trailers. When pluged into shore
power the inverter charges only the house batteries. The
starting battery starts the engine and the Onan generator.
When the Onan plant is running the house batteries are
charged with the inverter and the start battery is charged
with the DC charge system from the Onan plant. The only
you can charge the start battery when pluged into shore
power is to use one small jump cable from the positive post on the house battery to the positive post on the start
battery or use a small AC battery charger. Pat370

This is one thread I found that PAT did on his 370.

[John H.]

Originally Posted by ALANSD

when i first got my Moho I left it plugged int shore power thinking I was doing myself a favor by saving battery life. It fried both fairly new GM Delcos in a short time. I replced with an inexpensive Wal Mart chassis battery and a more expensive yellow top house one, used the disconnect blade, and I have not had a problem since. I check the charge level every week or so, and plug in when it drops below fully charged if not driving the coach.

Just reviewing this very topic.

The new chargers are self regulating as far as output is concerned.

Full charge
medium and float on most.

Many of the pre 90 Charger models were full charge constantly and fried many good battery's. One was better to turn these off if the unit sat for more than 2 weeks or so.

or a variable range charger with float was not working properly. If the battery got fried.