4.5758 5 33
Perko Battery Selector Switch
Item No. 314474
Perko Battery Selector Switch is rated 4.6 out of 5 by 33.
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Perko Battery Selector Switch
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Perko Battery Selector Switch

Perko Battery Selector Switch is rated 4.6 out of 5 by 33.
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Item No. 314474
$37.99 $39.99
Save $2.00 ( 5% Off )
Compare at $49.99
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Additional Information
Featuring a make-before-break design, this Perko switch permits selection between two batteries for starting and charging or operation of both batteries in parallel. The "off" position also acts as an emergency disconnect in the event of an electrical problem. For use with systems under 50 volts. Rated 250 amps continuous, 360 amps intermittent. 5-1/4" dia. x 2-5/8"H.
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  • For use with systems under 50 volts
  • Rated 250 amps continuous, 360 amps intermittent
Unit Weight 0.85 lb
Brand Perko
Rated 4 out of 5 by from Perko Good Switch but pretty hard to turn, but maybe that's a good thing.
Date published: 2021-01-04
Rated 4 out of 5 by from Perko battery switch I replaced a broken switch. Easy to install, works great
Date published: 2015-06-03
Rated 5 out of 5 by from Good product Easy to install, gives peace of mind adding a second battery on my boat.
Date published: 2014-07-28
Rated 5 out of 5 by from A must have Simply, if you want your boat batteries to be charged and have the option to use one or the other this product is great.
Date published: 2013-07-17
Rated 5 out of 5 by from Doses the job very well add two batteries to my boat good instructions easy to install. dose job suppose to do and dose it well
Date published: 2013-06-20
Rated 5 out of 5 by from i would buy this item again Works vary well now I can run all day on one battery with out wondering if I can start up after sitting on the sand bar all day.
Date published: 2013-04-24
Rated 5 out of 5 by from Cheap Insurance Putting this on my boat with a second battery. Nothing worse than anticipating a great day on the lake and finding out your fish finder has drained your battery or worse yet, being out on the lake and finding out your stereo has drained your battery. Switching makes sense for safety and for backup.
Date published: 2012-07-26
Rated 5 out of 5 by from Great switch good addition if using a power amp
Date published: 2012-06-25
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What size studs are on the back of the switch? Need to know so the proper size eyelets for cables can be ordered.

Asked by: DAve
They are 3/8" studs.
Answered by: Product Specialist
Date published: 2017-06-19

when would the "all" setting be used?

Asked by: Jules
You may consider using Both when you're underway to allow the system to charge both batteries (vs only charging whatever battery bank you've selected). This becomes less of an issue when you're able to put your batteries on charge easily and regularly. You may also use this in emergency type scenarios (e.g. you've somehow drained both batteries and 1 won't start the engine, but combined they may have enough power to get you going again). Beware: If you're underway with the battery on 'Both' and then forget to change over to your house battery at anchor/sandbar/etc. you'll drain both batteries and run the risk of depleting both of your batteries. Please note: I've oversimplified a lot of the electrical and 'good-practices' here, but hopefully this gives you an idea for the usage of 'Both'.
Answered by: jwilliams2020
Date published: 2020-12-02

Include alt cut off?

Asked by: J Howard
For additional assistance, please contact the Overton's Technical Department at 1-800-334-6541.
Answered by: Steve
Date published: 2017-05-30

I have mine in the "Off" position; however, the radio and depth finder still work. How is that possible, I'm confused. Was installed by a professional mechanic.

Asked by: redfoxe
The power is still getting to these items because the items are not wired in sequence with the battery selector.
Answered by: Steve
Date published: 2016-09-16

What purpose does the "off" position serve. When in the off position my boat will still start but none of the lights nor the bilge pump will work?

Asked by: tommybhoy
When the Perko Battery Selector Switch is turned off, it is protecting the batteries for having any power being pulled by light or other items that may have been left on. However, the ignition switch is not pulling any power at all until it is turned on and there is not enough power being pulled to drain the battery.
Answered by: Steve
Date published: 2020-12-02

How often do these switches go bad. I have power in batteries but nothing on boat has power. Believe it's the switch.

Asked by: Dylanator
The Perko Battery Selector Switch will usually last for several years unless it is exposed to an excessive amount of water.
Answered by: Steve
Date published: 2016-04-28

Could you please instruct me on how to install this switch on a travel trailer. I would like to use it as a cut-off switch for the (2)batteries when the trailer is in storage, while still allowing the batteries to be charged when the switch is off. ( T...

Could you please instruct me on how to install this switch on a travel trailer. I would like to use it as a cut-off switch for the (2)batteries when the trailer is in storage, while still allowing the batteries to be charged when the switch is off. ( The switch would be installed after the batteries and before the power converter(DC to AC). Thank You.
Asked by: Anonymous
Please call the tech line at 1-888-683-7866.
Answered by: Bryant
Date published: 2015-09-23

need diagram for instalation single engine 2 battery

Asked by: Anonymous
http://gator49.hostgator.com/~zeromyst/ecatalog/images/Fig%208501-8504%20Inst%20(8500INS1).pdf Copy and paste that entire link in your browser
Answered by: Bryant
Date published: 2017-03-11
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