battery maintaining

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Oct 19, 2024 | 09:40 AM

#21

Rounders

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Joined: Mar 2021

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From: backwoods

Quote:

Originally Posted by KK0G

To answer the question directly, yes a lead acid battery can be maintained almost indefinitely on a float charge if the electrolyte level is maintained. Large battery banks used for emergency back up in telecommunications have been doing it for decades so it is possible, but in your case it doesn't make much practical sense to do so and if it's a maintenance free sealed battery you won't be able to maintain the electrolyte level anyway. Just install the new one then charge up the old one once in a while and keep it in the shop to use as a 12 volt source for testing.

You'll get 25 years out of these if maintained and not ran down. If there is can event where power is lost they will start decline . Which is why I am not a big fan of load tests

You can load test or test cells. Some places will load test because easier. It will reveal a marginal battery that you may have gotten longer life out of.

But these are not auto batteries.

Oct 19, 2024 | 11:04 AM

#22

hammer6315

Thread Starter

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Joined: Jan 2010

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From: shore of Gitche Gumee

batteries

Quote:

Originally Posted by Racepres

In a Different Time and Place...Yes
We used Yuasa exclusively in the First DragBike (Total Loss) Learned that Yuasa is Made in 3 Places.. If it says Taiwan on it...wont last a Weekend at the Track... Japan on it...Maybe a Few Races...USA, Now ya Got something...No Kidding!!! Look at the Battery Box itself to ensure What Yer Getting!!!
FWIW, I believe Dekka Supplies H-D OEM...Damn good Battery...tho, Overpriced IMO

My Yuasa says made in USA; the H-D battery that it is replacing only lasted 1.5 years, and only says certified by H-D, not the country of origin. Another battery came from Indonesia

Last edited by hammer6315; Oct 19, 2024 at 11:08 AM.

Oct 19, 2024 | 12:01 PM

#23

Rounders

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Joined: Mar 2021

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From: backwoods

Quote:

Originally Posted by hammer6315

My Yuasa says made in USA; the H-D battery that it is replacing only lasted 1.5 years, and only says certified by H-D, not the country of origin. Another battery came from Indonesia

You can bring the battery back to harley. I have had good luck with harley so I buy them, and I pass by dealers. I did have one last 5 years a few years ago, that was disapointing. Last year a buddies harley battery lasted a year. He got another. I had fleet farm go a year too.

I wonder if shrinkflation they are making them cheaper. The cost of batteries has gone up dramaticlly.
I bought one this spring, got a harley.

I hear a lot of yusa, deca, and optima. Never had one. But would research. Flip side I have good luck with generic fleet farm too.

Oct 25, 2024 | 07:11 PM

#24

heybaylor

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Joined: Oct 2010

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From: east texas

well, my agm in my sporty is 7 years old.
charge it about once every two weeks on a 4.5-amp smart maintainer.
it is getting a little old, but my sporty will bump start. (91, model runs off stator coil, batt only runs lights and turn signals)
ever watched an 83 yr. old man bump start??? is it a scene to watch ...lol

Oct 25, 2024 | 07:24 PM

#25

Orng48

Club Member

Joined: Feb 2021

Posts: 510

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From: Dixie

I use a tender with an H-D OEM battery...I also replace the batteries on the bike and in my cars ever 5 years whether they need it or not...

YMMV

Oct 25, 2024 | 07:32 PM

#26

John Harper

HDF Community Team

Joined: Dec 2011

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From: San Diego, CA

Quote:

Originally Posted by heybaylor

1991 model runs off stator coil, batt only runs lights and turn signals.

Wow, I did not know that (after 34 years!). I figured it would bump with a low battery, but with a totally dead/no battery? Good to know, I always thought the ignition module needed a minimum voltage (9-10V) to operate. So, it will work like a magneto? I know some of my buddy's dual sport bikes have a separate "magneto" coil for ignition along with a stator, but the Sporty only has the stator, with two wires to the regulator. Unless I'm missing something.

John

Last edited by John Harper; Oct 25, 2024 at 07:59 PM.

Oct 25, 2024 | 08:39 PM

#27

heybaylor

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Joined: Oct 2010

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From: east texas

yes john, one time at biker blues and bb-que rally in Arkansas, my son was riding my old sportster, he was familiar with the roads, and I was following him.
we stopped for gas, and I fussed at him for not using the turn signals.
he said I was? lights were gone
after gassing up, we discovered the batt was dead, no start.
bumped started it, and rode about 100 miles north to an Indy.
stopped 4 gas on the way and again bump-started.
was the voltage regulator gone.
50 bucks, and a borrowed 10 mm wrench and we were on our way
all I know in real life it worked???

Last edited by heybaylor; Oct 25, 2024 at 08:49 PM.