battery boost

[cookie monster]

This weekend about 10 rigs in my rv group met and when we went to leave two of the units would not start. Neither of the two rigs would kick over even with the battery boost switch. Both are w-22,s. Batteries are both good just run down from leaving acc on. Seems odd that the boost switch wouldn,t help when jumping the same coach batteries with cables did the trick?-John

[cookie monster]

This weekend about 10 rigs in my rv group met and when we went to leave two of the units would not start. Neither of the two rigs would kick over even with the battery boost switch. Both are w-22,s. Batteries are both good just run down from leaving acc on. Seems odd that the boost switch wouldn,t help when jumping the same coach batteries with cables did the trick?-John

[Tenn.Vol.]

Do I remember,(a mind is a terrible thing to loose) That the battery boost sw. (relay) uses the
chassie bat. to activate the relay ! So you have to jump the control voltage from the house bat,
to bring the three (or more) batteries together!!!!!TENN.

[John-D]

It may depend on the switch... On my rig the other day the house batteries were D!E!A!D, (Strangely the inverter's batteries still had power, normally they are first to go) (I have 3 banks, Chassis/Inverter/House other than inverter)

E-Start button did not help (it has in the past)

Thankfully I actually have a few more batteries on board including the jump start batt... It worked just fine

["007"]

Welcome John-D to the irv2 web site.
Thanks for joining in with you posts.
Enjoy the forums and post often.