Foretravel Owners' Forum For owners and Fans of Foretravel Motorcoaches September 11, 2025 ...

Booster Switch

February 04, 2011, 11:04:58 pm

I am staying at an R.V. Resort and I am plugged into shore power.  We have been here for a week with the cold temperatures.  Checked my engine battery voltage and found I was just below 12 volts.  Have now put on the booster switch to charge the engine batteries.  My question is:  How long can the switch be left on, ie for weeks provided I am on shore power or should I turn the switch on and off every few days?

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Re: Booster Switch

Reply #1 – February 04, 2011, 11:17:22 pm

Rick, Turn it on for a day, check battery, I would be concerned WHY the battery is going down, maybe someting is on such as a light/s, maybe radio or booster for tv. Not knowing how your coach is setup makes for difficulty in guessing, but again the WHY would concern me.
Good luck

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Re: Booster Switch

Reply #2 – February 04, 2011, 11:23:00 pm

A solution to your problem is TRIK-L-Start by lslproducts.com.  That solved my problem.

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Re: Booster Switch

Reply #3 – February 05, 2011, 03:36:29 am

Or a battery minder plugged into the block heater outlet.

Before I bought the battery minder, I just kept the boost switch on all the time.  I checked the voltage at the starting batteries, and it was in the allowable range.  The main concern is that the coach can become unplugged or trip a breaker, and you will loose all the batteries.

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