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Date Posted: - Monday - 01/17/05 - 1:42pm
Author: Randall Reeves
Author Host/IP: 64-161-221-132.opentable.com / 64.161.221.132
Subject: Battery Switch Replacement

My battery switch is old, and, given how well it's working, corroded on the inside. I intend to replace in the next couple weeks.

It looks like a really straight forward job.

Any "be carefuls" I need to know about?

RR

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Replies:

[> Re: Battery Switch Replacement -- Speedy, - Tuesday - 02/ 1/05 - 7:08pm (NoHost/202.131.161.222)

Hi Randall,

What kind of switch? I replaced my off/on/both switch with three on/off switches thus avoiding the common loss of current through the three-way switch.

The batt. cables may need attention, but it's very straight forward.

[Edit]
[> [> Confused -- Randall, - Tuesday - 02/ 1/05 - 8:46pm (64-161-221-132.opentable.com/64.161.221.132)

The batteries and cables are less than a year old, so they're not the problem (batts are well watered, cables corrosion free, except at the switch).

The switch is old and I've started to notice that I need to jiggle it a little in each of its positions before it's actually on (I test it on the lights before starting the engine, for example). I also notice that whereas battery one is fully charged, it can barely start the engine. So, I'm deducing its the switch.

I was just planning to replace w/another Off/1/2/Both switch. How else would I have the option of switching from the starting battery to Both in order to charge both?

Tell me more. I have very little sense when it comes to matters electrical.

RR

PS. Nice to see you back on the board. I found all the Iki emails (or most all), which warmed my heart. That was a fun time.

[Edit]

[> Re: Battery Switch Replacement -- Al, - Wednesday - 02/ 2/05 - 12:56pm (rrcs-24-199-182-90.midsouth.biz.rr.com/24.199.182.90)

Randal,
If you have a bible (West Marine catalogue) in the electrical section there is a West Advisor that tells you exactly how to change from an Off/1/2/both switch to using three on/off switches. It also adds a battery combiner to the set up that allows for charging of both batteries with out overcharging the start battery (depending on your battery bank set up). I have a large house bank of 6volt batteries and one start batery. Read through that information, I have set up Hexli that way and am thrilled with the results.

Al

[Edit]
[> Re: Battery Switch Replacement -- Speedy, - Thursday - 02/ 3/05 - 11:57am (NoHost/202.131.161.222)

Yeah, I sure miss Iki. I've been gone for over three months now.

The off/on/both switches will fail just as yours has done. I have had this happen many times over the years.

I wired mine like the West Marine schematic, but I didn't use the combiner. The voltage regulator did a good job of preventing overcharging.

The one protection not there is the alternator field disconnect, so I had to be sure and not kill both batt switches.

[Edit]
[> Appreciated... -- Randall, - Tuesday - 02/ 8/05 - 7:23pm (64-161-221-132.opentable.com/64.161.221.132)

Thank you gents for your feedback. My boat prior to Murre had no electrics at all, so I am particularly ignorant in that line. Here I was thinking that the 1-both-2 switch was so "marine". I have acquired the bible and read it chapter and verse.

RR

[Edit]

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