2001 brave 30w charging down the road

Here was the fix replaced battery relays . I was getting some contact but not full charge contact . new and it was right up there 14v .
thanks again for all the pointers and info this a great forum with great people . :)

Itasca55

Thanks for all info I will look in to it and test will post out come. Thanks everyone.
Itasca55

RoyB wrote:
The only real way to know is to measure your battery at their terminals using a multimeter without the motor running and you will read 12.6-7VDC if the battery is fully charged. Then start up your motor and this reading at the battery terminals should jump to 13.6VDC or more depending what charge mode the alternator is in. It could go as high as 14.4VDC

Roy Ken

. After doing what Roy suggested, if you do not see 13.6-14.4v look for two battery isolators or relays probably on the firewall , there should be two large nuts one one each side you should read the same voltage on each side, if not the contacts inside are burned and not making contact. I replaced both of mine for about $20 each.

When I had that problem it was a "battery relay".
Total bill to fix was less than $100.

Note: If there is a battery disconnect switch for the coach, it MUST NOT be in the off position or the batteries won't be connected at all.

The only real way to know is to measure your battery at their terminals using a multimeter without the motor running and you will read 12.6-7VDC if the battery is fully charged. Then start up your motor and this reading at the battery terminals should jump to 13.6VDC or more depending what charge mode the alternator is in. It could go as high as 14.4VDC

Roy Ken

My 2001 F-53 NationalRV Dolphin: the engine alternator charges my 12V 'starter" battery AND the 2 6V coach batteries.
When on shore power, only the 2 6V coach batteries get charged.

I have used a "trick-le start" gadget with mixed results. That simple setup cannibalizes the 2 6v batteries to keep the 12V battery "up". Good for multi-month snowbird parking. However...when the 2 6v "die" (like in long term storage) all of them "die". Then it's time for the jumper cables and hope all 3 batteries come back.

my experience