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Topic: Battery Isolator Question (Read 512 times) previous topic - next topic

Battery Isolator Question

I have a 97 U295. Wanting to install a Trik - L- Start (up to 5 amps) or it's big brother the Amp - L -Start (up to 15 amps) to keep starting batteries charged. My isolator is located in the very rear compartment driver's side, right next to engine.
Facing the isolator, there is one cable attached on the left post, one cable attached on the center post, and 4 cables attached on the right post.

Which one of these go to the house batteries, and which one goes to the chassis batteries?

Thanks for your help.
1997 U295

Re: Battery Isolator Question

Reply #1 –
Mine is located under the bed on the drivers side of the coach, pass side terminal is starting batt, center is alternator in, drivers side is house batteries. One wire on each terminal. If had to guess the one with 4 cables is the engine side, most likely all those cables go varrious connections on the
engine side.
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: Battery Isolator Question

Reply #2 –
The easy way to know is to test the voltage at the lugs on the isolator.  Start by testing your engine batteries voltage.  Then test the voltage at the isolator, the matching voltage will be the engine's and will the lower of the two voltages on the isolator.  The higher voltage on the isolator will be the house batteries being charged if you are plugged into shore power.
Dave Cobb
Buckhorn Lake Resort The Club, #6202, Kerrville TX
check the map.  I do rent it out when I am traveling!
2001, U320, 36' #5887, in Kerrville, FT Club #17006, (7/23 to present)
2024 Jeep Grand Cherokee L, Summit, white
EX: 98 U295, 36' #5219, (mid door), (4/13-10/23)
EX: 93 U225, 36' (4/11 to 4/13)

Re: Battery Isolator Question

Reply #3 –
If that charger has a desulfator you should connect it directly to the battery terminals, not the isolator... just saying.
Scott Cook
1991 U300 36' 6V92TA
Old Town Penobscot 16
1984 Honda VF1100C (V65 Magna)
 

Re: Battery Isolator Question

Reply #4 –
Quote from: RRadio –
If that charger has a desulfator you should connect it directly to the battery terminals, not the isolator... just saying.
It doesn't have a desulfator. Those are very low-power chargers. In fact they won't actually "charge" any batteries similar to those we use in our RVs. The ones I'm familiar with say that the battery bank has to be fully charged before you connect the "maintainer". They simply replace power lost through internal resistances and parasitic loads (things you can't turn off that still use a little bit of power).

Craig
1993 U225 36' Unihome GV with PACBRAKE exhaust retarder, Banks Stinger and Solar Panels.
Toad: 1999 Jeep Wrangler 2-door soft-top.

"No one has ever had to evacuate a city because the solar panels broke."