battery switch question
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Lots of discussion about this over on BoaterEd.com and TheHullTruth.com down through the years.
Switch should be in the OFF position when you are not using the boat (obvious)
Switch should be in the BOTH position ONLY when the primary starting battery is having trouble starting the motor. When you tie both batteries together a bad cell in one could pull the other down, stranding you. If you have a particular battery that continues to have trouble staying charged, replace it, don't use the BOTH position as a crutch.
Some guys alternate the 1 and 2 positions: To the fishing grounds on 1, back home on 2; or, 1 on odd days, 2 on even days.
Since I have twin motors, two batteries, and each motor-battery combination has its own off-1-both-2 switch, I run the starboard motor switch in the 1 position and the port motor switch in the 2 position. I only strap them together in the BOTH position when I've run the electronics too long on the hook and the starboard (house) battery won't crank the starboard engine.
BTW, the most common cause of a battery not cranking a motor is corrosion on the battery terminals and wire lugs.
Dave
aka
Switch should be in the OFF position when you are not using the boat (obvious)
Switch should be in the BOTH position ONLY when the primary starting battery is having trouble starting the motor. When you tie both batteries together a bad cell in one could pull the other down, stranding you. If you have a particular battery that continues to have trouble staying charged, replace it, don't use the BOTH position as a crutch.
Some guys alternate the 1 and 2 positions: To the fishing grounds on 1, back home on 2; or, 1 on odd days, 2 on even days.
Since I have twin motors, two batteries, and each motor-battery combination has its own off-1-both-2 switch, I run the starboard motor switch in the 1 position and the port motor switch in the 2 position. I only strap them together in the BOTH position when I've run the electronics too long on the hook and the starboard (house) battery won't crank the starboard engine.
BTW, the most common cause of a battery not cranking a motor is corrosion on the battery terminals and wire lugs.
Dave
aka
greatcir
Well-known member
I was talking to a Yamaha engineer last week and we got on the subject of charging batteries with the Yammie. He said there are two sets of wire availaable for battery charging on my 4 stroke 150. He said one set should go to Post 1 and the other to Post 2 so that both batteries would be charged by the motor all the time. He said the engine system will charge the low battery first.
I have not been to see my charging system since our conversation. Anyone else find their system wired for both batteries to charge?......................Pete 2007 2120 150 4s
I have not been to see my charging system since our conversation. Anyone else find their system wired for both batteries to charge?......................Pete 2007 2120 150 4s
i called the surveyor,he gave me the information i asked for.the surveyor also sent me to a repair service he reccomended to have the batteries set up the proper way.he was right,the information was in the notes and reccomendations he suggested.
the guide line was,have the batteries serve only one purpose,1 battery for the engine and 1 for the boat.i didn't understand the entire discussion,but the surveyor sent me to a repair service that specilizes in electrical systems.in the mean time,the surveyor reccomended to use #1 and #1 only.he also explained to me to be sure to plug the boat into shore power while at the dock,the boat's equipped with a battery charger.
thanks for the suggestions.
the guide line was,have the batteries serve only one purpose,1 battery for the engine and 1 for the boat.i didn't understand the entire discussion,but the surveyor sent me to a repair service that specilizes in electrical systems.in the mean time,the surveyor reccomended to use #1 and #1 only.he also explained to me to be sure to plug the boat into shore power while at the dock,the boat's equipped with a battery charger.
thanks for the suggestions.
Linda Lou
Active member
I had put on my 2120 sc a Blue Sea Systems switch with an automatic charging relay. With the switch Parker put on I had problems.When I started my engine the ray a-65 and vhf radio would turn off.This switch the Blue Sea is great and has corrected the problem.It has a ON-Off & combined batts.Very simple.You can read about it on their web site.The model I have is the 5511e & the 7610 ACR.