2009 G29 Yamaha solenoid issue?

Jimhill97

So recently my batteries discharged over the winter so I had to charge each one individually. I was lazy and didn't pay attention to them. I drove it out of the yard and had to push it back, the batteries died. Two of the 6 were bad so I went and bought 6 new ones. I replaced them and the cart drove around the block no problem. I let it sit for a few days and the charger clicks on but will not move to charge, I figured it was because they were new batteries and did not need them. Fast forward to camping and I go to back up the cart and it just dies. I checked the batteries and one battery that runs the positive to the solenoid is at 4.6Volts the rest are at 8. I charge the one battery and it works again. The batteries are in series and I get a 48V read at the end. I checked the main terminals at the solenoid and get 48V there as well. That is as far as I have gotten tonight.

Can a bad solenoid cause only one battery to drain in a series?

BGW

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Jimhill97

Just an update, all of the lights light up on the charger, they shut off the green light that indicates "charged" lights up and the charger resets. It does this twice before going back to just the red light being on.

Muddog

A fully charged 48V pack should be at 50.92V after 24 hours rest from charging.
A fully charged 8V should be 8.48V.
It sounds like you have a faulty battery.

Jimhill97

Ill charge that battery and check it, I checked it out of the package and it was 8.1v like the rest.

Muddog

Your pack is out of balance.
Charge low battery by itself until it reaches voltage of other batteries.
Then charge entire pack.
You want all batteries at the same voltage, so batteries with higher voltage won't overcharge while charger is trying to charge weak battery.

mikkeeh

Do you have any lights or accessories wired to just one battery?

Jimhill97

No, on this battery it is just the positive cable to the solenoid, the positive charge cable and the negative terminal to the next battery in the chain. The lights are hooked to a MadJax volt reducer on two separate batteries in the chain.

I have been charging the battery alone with a charger since 5pm it is now 9pm and it is sitting at 7.6V and it started around 4.6v. I'll check back later to see if it moves up. If this is just a bad battery that came that way from the shop, I will look back with fond memories of all I've learned about the wiring of this thing.

Jimhill97

I ran the suspect battery on a 15AMP charger overnight, the charger kicked into maintenance mode at 7.5v. I checked the other batteries and the charger runs to 8.4 on each of them before going into maintenance mode. I'll check the battery later today, it's less than a month old so it will be going back and hopefully, that resolves the issue.

Jimhill97

Two batteries were definitely bad, I replaced those. I'll search the forum because now the Yamaha charger is just continuously turning on an off.