Automatic Battery Trickle Chargers - Yamaha R1 Forum: YZF-R1 Forums
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post #1 of 32 (permalink) Old 12-27-2012, 07:18 AM Thread Starter
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Automatic Battery Trickle Chargers

Does anyone have any specific models they recommend?

I started battery shopping last night, and noticed that the batteries for my bike are the AGM type. I've heard these are finicky when it comes to charging.

I'm currently using a walmart Schumacher automatic trickle charger, but have been looking at the battery tender brand. Not against the battery tender jr or the next step up. Just wondering if anyone has any recommended units.

What've you been using?

I've read in a couple spots that these automatic chargers end up actually boiling peoples batteries in some cases!

Any suggestions would be appreciated.
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post #2 of 32 (permalink) Old 12-27-2012, 07:23 AM
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Battery Tender for traditional motorcycle batteries.

I quit using mine because I upgraded the battery to lithium.
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post #3 of 32 (permalink) Old 12-27-2012, 07:34 AM
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It's always a plus to monitor the voltage with your volt meter when charging a battery, even if it's an automatic charge type just in case it malfunctions. An AGM battery can equalize charge at 2.36 volts per cell, 14.6 volts per battery for 24-hours and can be left on float charge at 2.24 volts per cell, 13.44 volts per battery for a long period of time even though I don't recommend it. The specs above are most likely very close to what an automatic battery charger will run at.

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post #4 of 32 (permalink) Old 12-27-2012, 07:41 AM Thread Starter
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See, every time I hook the current charger it charges for at least 30 mins. Every night when I finish riding I hook it up, I never know if it'll be a day, or a month until I ride again. I think my current battery died as a result of overcharging because of this.

I'm hoping the battery tender brand won't automatically charge every hookup. We'll see I suppose.

Any thoughts?


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post #5 of 32 (permalink) Old 12-27-2012, 07:43 AM
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post #6 of 32 (permalink) Old 12-27-2012, 08:20 AM Thread Starter
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I'll take a look at those units. I'm wondering how these Battery Tender brand units perform. I wish I wouldn't have put this in appearance and mods.


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post #7 of 32 (permalink) Old 12-27-2012, 08:26 AM
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Have a few Battery Tender Jr's for the bikes, They work great! The next one up, 1.25 Battery Tender works fine... But, Lighting strike's have taken them out. The Jr's keep on working just fine.
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post #8 of 32 (permalink) Old 12-27-2012, 08:41 AM Thread Starter
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Quote:
Originally Posted by MotoGPracing View Post
Have a few Battery Tender Jr's for the bikes, They work great! The next one up, 1.25 Battery Tender works fine... But, Lighting strike's have taken them out. The Jr's keep on working just fine.
I've heard great things about the Jrs. However, I've heard they don't compensate for temperature related voltage drop. Since my bike sits in the cold (much to my dismay) I don't think it'd work.


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post #9 of 32 (permalink) Old 12-27-2012, 12:28 PM
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Quote:
Originally Posted by timmcnamee View Post
I've heard great things about the Jrs. However, I've heard they don't compensate for temperature related voltage drop. Since my bike sits in the cold (much to my dismay) I don't think it'd work.


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When I get a chance I'll elaborate a bit more to my comment. I've worked in the battery industry (all types) for 38 years so I should be able to answer any questions you have.

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post #10 of 32 (permalink) Old 12-27-2012, 12:47 PM Thread Starter
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Quote:
Originally Posted by cyclepsycho7 View Post
When I get a chance I'll elaborate a bit more to my comment. I've worked in the battery industry (all types) for 38 years so I should be able to answer any questions you have.
I'll be waiting! Thanks so much for sharing your expertise.


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post #11 of 32 (permalink) Old 12-27-2012, 05:15 PM Thread Starter
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Anyone else have good or bad luck with any particular manufacturer?
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post #12 of 32 (permalink) Old 12-27-2012, 07:42 PM
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Battery Tender JR's on everything from my bikes, to garden tractor, to snowmobiles, to the wifes Challenger SRT8 and they have all worked flawlessly!

-John
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post #13 of 32 (permalink) Old 12-27-2012, 08:30 PM
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I almost started a thread yesterday with this very topic. I was gonna buy a Batter Tender Jr, just cause thats what i kept hearing about. Im interested in the replys.


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post #14 of 32 (permalink) Old 12-27-2012, 09:46 PM
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i used a schumacher brand for 3 yrs on same batter came with adapter and plug so i could leave hook ups on bike all the time and quickly plug it in and only cost me $15 had a green led light when not trickling and a yellow when it was on, worked great for the price with no issues
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post #15 of 32 (permalink) Old 12-28-2012, 05:03 AM Thread Starter
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From my experience, and the research I've done, the shumacher ruined my battery. Every time you disconnect and reconnect the charger it charges the battery for 30 mins or so. I never know when I'll be riding next, so every time I park it, I hook it up. I believe over time, this overcharged my battery and basically fried it.


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post #16 of 32 (permalink) Old 12-28-2012, 07:39 AM Thread Starter
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Check out a 10w829 on Grainger.com. Pretty cool.


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post #17 of 32 (permalink) Old 12-28-2012, 08:37 AM
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i never had a problem, mine wasnt a chager it was just a trickle charge and didnt have alot of power and shut of when battery reached full charge, had plug adapter with positve and negative wires to mount to your battery and the other end was a quick connect plug that hooked to charger, i had it for 3 years and live outside of chicago, so it was plugged in for months at a time, if u google schumacher battery tender and go down to the amazon site that has it for sale thats the one i had, think it was a 1.5amp
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post #18 of 32 (permalink) Old 12-28-2012, 08:53 AM Thread Starter
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Quote:
Originally Posted by mudshuvel View Post
i never had a problem, mine wasnt a chager it was just a trickle charge and didnt have alot of power and shut of when battery reached full charge, had plug adapter with positve and negative wires to mount to your battery and the other end was a quick connect plug that hooked to charger, i had it for 3 years and live outside of chicago, so it was plugged in for months at a time, if u google schumacher battery tender and go down to the amazon site that has it for sale thats the one i had, think it was a 1.5amp
That was the intended function of my Schumacher model. Unfortunately, before it would determine what the battery's voltage, it would put a 30 minute trickle charge on it, THEN maintain. I think this process is what ruined my battery. :
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post #19 of 32 (permalink) Old 12-28-2012, 09:14 AM
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huh, no good with that then!! yea i definatly wouldnt go back to that brand if u had problems, good luck....u could always start it once a week in the garage around midnight and piss off your neighbors, lol
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post #20 of 32 (permalink) Old 12-29-2012, 03:03 AM
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Battery Tender Plus is all I've ever used
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Last edited by rorlow; 12-29-2012 at 07:42 AM.
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