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Perko Standard Battery Selector Switch
$52.81In Stock
Perko Standard Battery Selector Switch
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Perko Standard Battery Selector Switch Customer Questions and Answers

10 of 14 Questions

Question

How should I connect the ground of 2 batteries to an aluminum boat?

Asked on 04/05/2014 by Undisclosed

Top Answer

I said inboard on second engine description, it is outboard for the ground to neg of battery system...

Answered on 04/07/2014 by MICHAEL TAYLOR
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Answer

I don't have an answer. I have never done that.

Answered on 04/05/2014 by PAUL LEBEL

Answer

If the boat is an inboard, the engine is always the ground. if it is inboard then the 12 volt system is an isolated circuit and is grounded to the batteries them self on the negative post of nay battery in the circuit.

Answered on 04/07/2014 by MICHAEL TAYLOR
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Question

Can you charge both of your batteries at once by putting switch to the All position?

Asked on 02/17/2014 by Undisclosed

Top Answer

Yes in the all position you will be charging both batteries at the same time however this is not a good thing. If battery one or two is weak the alternator will sense this and bang lots of amps to both batteries which will fry them. I would run on one battery saving the other for an emergency and then alternate between the two positions every so often. When you operate on the all position you are only as strong as the weakest battery.

Answered on 02/18/2014 by Steve Johnson
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Answer

Have not installed yet, will do so this spring. I do believe you can charge both batteries at the same time.

Answered on 02/17/2014 by BARRY OKSMAN

Answer

I don't know. I have not installed mine yet. I would think the answer is yes.

Answered on 02/17/2014 by PAUL LEBEL
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Question

I bought an older boat and it had this perko switch connected to two batteries. When should it be switched from 1,2 to "all" and why? Thanks Gary C.

Asked on 02/04/2012 by Undisclosed

Top Answer

I call my main battery (starts the engine and runs lights, etc.) my "#1" battery. I call the big battery that operates my two trolling motors my "#2" battery." I normally select "1" then go fishing. If the #1 battery should get weak (from using the radio and depth finders all day) I simply select "2" to start the engine. If both batteries are weak I select "all" and let both batteries start the engine. When 1 is selected and the engine is running, it charges the #1 battery and when the #2 is selected and the engine running it charges the #2 battery. When no motors, lights, or accessories are in use I set the switch to "off". Even if I leave an accessory turned on there will be no battery drain.

Answered on 03/31/2012 by STEVEN LEFLER
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Answer

Gary, The switch allows you to seperate your house battery (lights, water pump, radio, etc) from your engine cranking battery. I use battery 2 as my house battery and 1 as my cranking battery. When sailing and the motor isn't running I'll keep the switch on 2 to conserve battery 1 (switching to 1 when ready to start the engine). The ALL position ties the two batteries together if both are low on amps- this might provide you enough cranking amps to start your engine when both batteries are low. Keep in mind to not switch battery positions when the motor is running- this could cause a spike. Only switch positions with the engine off.

Answered on 02/16/2012 by KENN LUDWIG

Answer

One is a primary, the other a backup. "All" is used if you want both batteries powering your system.

Answered on 02/07/2012 by JAMES FEATHERSTONE
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Question

My boat has two batteries. Both engines (main and kicker) start on position 1 I need to charge no.2 battery which operate downriggers and pot puller. What position should I run on?

Asked on 05/12/2014 by Undisclosed

Top Answer

I can't answer that. I have not yet installed mine. I know there is a way to do that but I can't tell you from experience. I suggest you call perko.

Answered on 05/12/2014 by PAUL LEBEL
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Answer

You should have one battery running through position one, and the other battery running through position two. You can isolate one battery for just starting your main engine and one battery for your other equipment. Connect your charging leads from your main engine to each battery. this way both batteries are charging any time your main engine is running. The purpose of the switch is to use just one battery for starting only and you will never run your start battery down operating your other equipment so you will never be left dead in the water with a low battery to start your engine. and if your start battery ever is low you can switch to both batteries for extra amperage to get a start.

Answered on 05/12/2014 by MICHAEL TAYLOR
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Question

I have an RV with 4-12 volt batteries. I want to tie two batteries together to increase my amp hours and have each pair of batteries on a separate selector switch #. Will this switch work to separate each pair of batteries and can I switch it to all for maximum amp hours if desired?

Asked on 03/10/2013 by Doug Brooks

Top Answer

Yes, you can

Answered on 04/23/2013 by MICHAEL TAYLOR
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Answer

I'm the wrong person to ask. I've heard they are excellent but haven't installed mine yet.

Answered on 04/26/2013 by PAUL LEBEL
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Question

How do I wire this switch for 2 batteries??? I got it with a boat I bought but it only has one battery.. Thanks

Asked on 04/30/2012 by Undisclosed

Top Answer

First run your main power wire to the common. Then ground your 1 battery n put the power wire on side 1. Last ground your 2 battery n put the power wire on side 2.

Answered on 05/14/2012 by JESTIN ALLEN
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Answer

This switch is designed for 2 batteries. It has a common ground for both batteries, and a pole for each positive. Switching to "1" or "2" comples the stated connection - or you can run both at the same time.

Answered on 05/07/2012 by JAMES FEATHERSTONE
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Question

how do you install?

Asked on 12/13/2011 by sean green

Top Answer

sean, run one positive cable from each battery to the posts marked 1 and 2. the other is for the main wire to the starter on the boat. if you select battery1 only that battery will be used and charged. if you select #2 same thing. if you select both both batteries will be used and charged. never switch while the engine is running.

Answered on 01/02/2012 by BRADLEY WEST
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Answer

Hi Sean. This switch should be installed in a handy location yet protected, and close to the batteries and point of use. The four screw holes will hold it securely to a panel with access to the back. Mark and drill the four little holes, then make a bigger hole where the center of the switch will be sufficient for the three wires that will attach to the posts on the back of the switch. Run your wires, one from Batt.#1, one from Batt.#2, and the third to whatever needs the power. Starter, circuit panel, winch, etc. Secure the switch to the panel with four screws, washers, lock washers, and nuts. The size, length, type, and gauge of wire and terminals is another question.

Answered on 12/30/2011 by JOHN ENTNER
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Question

What other parts do I need to purchase to do a complete installation. I have 2 marine post batteries but no switch?

Asked on 09/13/2011 by David Stanczak

Top Answer

You will need mounting screws (not included) and battery cables

Answered on 10/07/2011 by JAMES FEATHERSTONE
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Answer

Not sure what you are trying to do, but I suspect you will need nothing more than a cable or two. The switch has three terminals on the back, battery #1; battery #2; and common. I purchased this switch to replace an identical unit on a travel trailer -- not a marine application. The original had seized. In my application, each battery (hot lead only) is cabled to the respective terminal on the switch, with the third (common) terminal running to the trailer's electrical system. With this setup, I can run the trailer's electrical from battery #1 OR battery #2; OR BOTH -- OR NEITHER (when I'm hooked up to AC). Hope this helps.

Answered on 09/15/2011 by MARTIN BEYER
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Question

Regarding a Perko battery switch. I need to replace mine , but I dont know if it should be with or without the alternator field model. This is for a 1990 formula with two engines that both have alternators? Two batterys on the boat.

Asked on 09/07/2011 by rob yates

Top Answer

Hi rob the fact that there are alternators go with the safer option of the alternator field models.. if you where running out board motors with no alternators then go for the other . rather safe than sorry. enjoy boating Cornelius SOUTH AFRICA

Answered on 09/08/2011 by CORNELIUS LE ROUX
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Answer

without . Just let the alternators and regulators do thier job.

Answered on 10/06/2011 by BRADLEY WEST
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Question

how to install?

Asked on 01/10/2015 by vince tharpe

Top Answer

Installation was simple following the instructions. The switch was mounted to a flat surface. Additional wire or cable is needed between the switch and the batteries. Installation this time was on a pontoon boat which did not require use of battery cables but a large gauge wire. Make sure the wire or cable size matches the largest wire size from the battery. Other installations were put in emergency vehicles.

Answered on 01/10/2015 by MIKE DAVIDSON
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