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Yuasa batteries decline in quality

ontarioyamaha

ontarioyamaha

Pro
Joined
Mar 26, 2017
Messages
146
Age
58
Location
Port Perry, Ontario
Country
Canada
Snowmobile
2010 Vector ltx GT
2010 MXZ X 1200
LOCATION
Port Perry
I year old Yuasa keeps dropping voltage. I have a battery shut off switch and voltage drops from 12.5 to 12.18 overnight. It seems Yuasa are no longer reliable. Any alternatives brands that might provide more reliability?

PITA to replace. Very time consuming. Ten minutes on my wifes rev. 2 hours on the RS.
 

That's disappointing to hear, as they are the only batteries that I have had good luck with. Maybe you just got a bad battery.
 
Unfortunately this is a thing, had a few experiences myself the last couple years with “not that old” Yuasa batteries going South. Either way, shouldn’t take 2 hours to swap one out Rodney. :tg:
 
Measured the battery over several days. I have a quick disconnect in the sled and the battery is disconnected from ground.
12.53 volts Friday at 11am
12.18 volts Sat at 11
12.15 v Sunday
12.14 v monday
Would not start Wed

I brought sled in and removed batter. I hooked up my Noco Genius 10 and within 5 minutes it showed fully charged. Knowing this cannot be correct I hooked up an old school 1 amp tender and plan to charge for about 24 hours.

I am beginning to lean towards battery charger being the root cause of my battery issues. I have had several batteries seemingly fail and the only common element is the charger.

Anyone else have had any issues with these " smart " chargers?
 
I have, and will keep at least one "smart" charger and one old school just for those occasions. There are times when a smart charger will desulfate a battery and recondition it to near new shape. And then there are other times I just need to "giver 'er the onion" and throw some power at it to kick start it back to full. It's voodoo for guys like me that don't understand the tech behind it.

Don't get me started on these lithium and combination chemistry batteries. Thats a whole different animal there. The ice fishing forums are filled with all sorts of know-it-alls that swear by whatever battery they just spent way too much money for.
 
Although I own several Noco battery chargers (ie. GB20, GB40, etc), I've never used them to actually charge a battery; primarily use them to jump starter a dead/low battery. When it comes to actually charging them, I have always used the Battery Tender Jr's but also have a couple of these Noco G1 chargers for my AGM batteries. it's still trickle charger though.
 
ya the GB20 and GB40 are not chargers. They are designed for a quick boost to help start the vehicle, but not charge. In fact, that 1a tender listed above is a "maintainer" not a charger. Many times 1-2a will never bring a battery to life. They were never meant to.

I put a 2a tender on my truck to maintain it while in the pole building, and it cannot save a failing battery. It had 5 years on it and could not bring it back to life.
 
biffdotorg said:
In fact, that 1a tender listed above is a "maintainer" not a charger. Many times 1-2a will never bring a battery to life. They were never meant to.
Click to expand...
Well, my 5yr old Yuasa battery I had in my Kaw Jet Ski that was deader than a door knob and brought back to life via one of my Battery Tender Jrs will respectfully have to disagree. It took several weeks but finally showed green after showing red for weeks on end. Ended up getting another year or so on that battery.
 
RobX-1 said:
Well, my 5yr old Yuasa battery I had in my Kaw Jet Ski that was deader than a door knob and brought back to life via one of my Battery Tender Jrs will respectfully have to disagree. It took several weeks but finally showed green after showing red for weeks on end. Ended up getting another year or so on that battery.
Click to expand...
Oh I get it. The definition of a charger for me is an amount of time that allows it to be used again when needed. So if overnight is what you need, 5-10a is a minimum in most books. You had serveral weeks and 1a is more than -1a for sure. So yes, it will put juice on it, as long as it's faster than it is depleting, it's technically charging (smile)

I used that same 2a maintainer on my fishing boat, as I only used it on the weekends. So yes, over the period of a week, it would put a charge on it. But once I started going out multiple times per week, I had to bump up to 5a charger to get it there overnight or in a couple days. My yamaha boat has a dual bank 10a charger, so that we can top our stereo's deep cycle batteries overnight.
 
My experience in recovering a battery has been starting with higher amperage charger to bring the voltage up and finish with my Optimate 3 charger that will bring the battery up to 14.4 volts. This will take time.
 
Newer batteries dont like "quick charging" or high amp charging
Set it a low amperage and let it chooch.
 
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