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Dual batteries ?


ruesch95
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Any one done this? I want to add another one for my lights and the radio.

I was looking at getting a battery isolator from Checker auto for like $35. Will this work?

Yes it will work, but depending on where the alternator regulator picks up it's sensed voltage, which is probably internal, the isolator (assuming it is solid state) will cost you about .7 to 1.2 volt depending on load. Another method would be to use 2 relays that get their pull in power from the the alternator, One heard of one disadvantage to relays and that was when one battery is dead, you start for a short time and turn off, during that time the dead battery sucked most of the life out of the good one. Only heard of this once.

With the recent development of the schottky diode, that would be the way to go. It only has a forward voltage drop of about .3 to .5, very acceptable.

kinarfi

PS, If you want to make your own for around $10, PM me.

http://www.vishay.com/docs/94246/94246.pdf just under $3 each, you'll need 2 and chunk of aluminum to mount them to.

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Yes it will work, but depending on where the alternator regulator picks up it's sensed voltage, which is probably internal, the isolator (assuming it is solid state) will cost you about .7 to 1.2 volt depending on load. Another method would be to use 2 relays that get their pull in power from the the alternator, One heard of one disadvantage to relays and that was when one battery is dead, you start for a short time and turn off, during that time the dead battery sucked most of the life out of the good one. Only heard of this once.

With the recent development of the schottky diode, that would be the way to go. It only has a forward voltage drop of about .3 to .5, very acceptable.

kinarfi

PS, If you want to make your own for around $10, PM me.

http://www.vishay.com/docs/94246/94246.pdf just under $3 each, you'll need 2 and chunk of aluminum to mount them to.

Thanks for all of the info Kinarfi! Once I get ready too do it, I'll let you know. But I got a lot bigger issue to deal with now.

........ - UTV BOARD - Side X Side and UTV Forum

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