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Topic: Charging both House and Start Batteries (Read 371 times) previous topic - next topic

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Charging both House and Start Batteries
Having searched on this forum for answers, I found info on the Echo Charger.  Doing some further research, I ended up on FOT home page and they are having a special on a VSR (voltage sense relay) that combines the House and Start batteries for...

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Re: Charging both House and Start Batteries
Reply #1
What brand/model VSR?

Any link?

  • bbeane
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Re: Charging both House and Start Batteries
Reply #2
I have one on mine, works great makes happy start batteries. The ACR closes when it sees any voltage over 13.20 then opens up when voltage drops below 12.85. Never know it's doing it's thing. It's hooked to the house and chassis terminals on the...

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Re: Charging both House and Start Batteries
Reply #3
Yes. Most any of the "smart combiners" are good.  If just used as a chassis battery maintainer, they don't need to be the high-amp rating ones.

If used in lieu of a battery isolator, they need to be very close to the amp rating of the alternator.

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Re: Charging both House and Start Batteries
Reply #4
What brand/model VSR?

Any link?

Brett;  there was no name that I recall on the FOT website, just that they were running a special on that unit.

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Re: Charging both House and Start Batteries
Reply #5
I have one on mine, works great makes happy start batteries. The ACR closes when it sees any voltage over 13.20 then opens up when voltage drops below 12.85. Never know it's doing it's thing. It's...


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Re: Charging both House and Start Batteries
Reply #6

  • jcus
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Re: Charging both House and Start Batteries
Reply #7

Re: Charging both House and Start Batteries
Reply #8
Would not use the Cyrix. 

It auto combines on starting.

My guru mentioned that covers up the true engine start batteries condition.

The blue sea 500 amp unit with the remote replacing the boost switch is seemingly fool proof.

ML-ACRs - Blue Sea...

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  • jcus
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Re: Charging both House and Start Batteries
Reply #9
Would not use the Cyrix. 

It auto combines on starting.

My guru mentioned that covers up the true engine start batteries condition.

Would...


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Re: Charging both House and Start Batteries
Reply #10
https://baymarinesupply.com/media/catalog/product/c/y/cyrix-ct-table.png

The chart shows "start assist" for 30 seconds

My optimas will drop into the low 11's on startup first crank

Your actual reading sound like no assist. Just reading the chart...

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Re: Charging both House and Start Batteries
Reply #11
I've had the Blue Sea ACR on mine for five years now, wouldn't even know it's there , it just works.

Re: Charging both House and Start Batteries
Reply #12
I have a cole-hersche smart relay that contacts are normally closed to the start battery, once it hits 13.2 volts it switches to charge the house battery whether plugged in or via alternator.  Been great for Almost 1.5 years about $120-130 for...

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  • bbeane
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Re: Charging both House and Start Batteries
Reply #13
Which one do you have?
Blue Sea M-ACR

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  • jcus
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Re: Charging both House and Start Batteries
Reply #14
https://baymarinesupply.com/media/catalog/product/c/y/cyrix-ct-table.png

The chart shows "start assist" for 30 seconds

My optimas will drop into the low 11's on startup first crank

Your actual...


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Re: Charging both House and Start Batteries
Reply #15
Soooo  ----  Is this just one of those expensive gimmicks or is there a practical need for one ???   I desire to keep the start battery and house batteries separated.  I charge the house batteries every couple of weeks and the engine battery about...

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  • bbeane
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Re: Charging both House and Start Batteries
Reply #16
Since I installed the ACR on mine, I don't give the start batteries a second thought. Not a gimmick just a modern up date.  When my isolator fails I will go with heavy duty ACR. As always DWMYFG as they say. 😎

Re: Charging both House and Start Batteries
Reply #17
Is this just one of those expensive gimmicks?

I desire to keep the start battery and house batteries separated.

If for some reason the engine battery fails, I use the boost sw to cross connect.

...


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