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AGM Battery, Any Good Tricks to revive one?
- Motor Head
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Using the Wet Acid out of the KZ now, and am going to get another Wet unless someone can convince me that the AGM can be rescued. Do they get a Memory in them like some Ni-cads? Thinking of pulling it to Zero/ Dead and trying to revive it again.
Thoughts?
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
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- loudhvx
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I bought one from there (BatteryStuff.com) in the spring and so far it works as well as any normal flooded battery. But I don't have any devices permanently drawing a trickle from the battery.
Are you sure it's .7 Amp? That's a huge amount for a clock... like 8 watts. Maybe you mean .7 mA?
Based on the 11.5v shortly after charging, I'd say it's belly up. It should stay up over 12v, (after the initial drop from 13v), after charging.
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- Old Man Rock
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- Motor Head
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:laugh:
Junk it is what I'm doing, just seeing if I'm missing a process with it. I've done what I though was going to have a chance of using it. My experience has been with normal wet cells and not the AGM. But nothing worse than letting a battery sit and discharging.
Its an Interstate Product line battery.
www.interstatebatteries.com/cs_eStore/Pr...II+-+270+CCA+-+18+AH
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- loudhvx
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0.7 amp is more than a standard 1157 tail light bulb. That's like leaving the tail light on 24/7. That will easily discharge a battery overnight to the point of not starting. Then recharging it will be a deep cycle. I wouldn't expect a battery to last more than a few weeks that way.
Time to ditch the clock.
1981 KZ550 D1 gpz.
Kz550 valve train warning.
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- Motor Head
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And the AGM, reading 10.4 after knocking the surface charge off, has a 4 amp head light hooked up to it monitoring the time it takes to drop voltage. I saw a chart on the net before on deep cycle batteries and Amp hour rating and discharge rate. It takes almost no effort to see what it does. It can discharge while I fix some of the remaining broken plastic.
1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- KZ_Rage
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As for AGM's they are either good or junk, horrible creatures for taking a charge and indicating full capacity then as soon as you put a heavy load on them to say start the bike then they tank out. Before junking I'd full charge it on the bench then wait a day or so and put it back in to try it. If it is flat or tanks then trash it, if not then you probably have a wiring gremlin.
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- Motor Head
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1982 KZ1000LTD K2 Vance & Hines 4-1 ACCEL COILS Added Vetter fairing & Bags. FOX Racing rear Shocks, Braced Swing-arm, Fork Brace, Progressive Fork Springs RT Gold Emulators, APE Valve Springs, 1166 Big Bore kit, RS34's, GPZ cams.
1980 KZ550LTD C1 Stock SOLD Miss it
1979 MAZDA RX7 in the works, 13B...
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- bountyhunter
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It's sulphated internally. RIP battery.Motor Head wrote: Well this AGM Battery I got with the Concours doesn't want to get a deep charge. It has no Amperage storage capacity. Goes down overnight with a .7 amp draw from the digital clock, higher than I would like. I've tried a slow trickle for like 3 days before I even used it once. Then I've tried fast charging at 10amps rate for an hour then back to the trickle overnight. Still no good, battery had sat dead for at least a year. But was new and was probably not used much at all. Seems like it gets a voltage level of 13 or so after charging, then after taking the surface charge off it drops down to 11.5v, I think it may just be F'd.
Using the Wet Acid out of the KZ now, and am going to get another Wet unless someone can convince me that the AGM can be rescued. Do they get a Memory in them like some Ni-cads? Thinking of pulling it to Zero/ Dead and trying to revive it again.
Thoughts?
1979 KZ-750 Twin
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- bountyhunter
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That will killl most bike batteries in about 15 hours. Disconnect it.Motor Head wrote: The draw is .7 amp, I wish it was like 20ma.
1979 KZ-750 Twin
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- bountyhunter
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+1. Deep cycling lead acid batteries kills them QUICKLY.loudhvx wrote: Yikes. :ohmy:
0.7 amp is more than a standard 1157 tail light bulb. That's like leaving the tail light on 24/7. That will easily discharge a battery overnight to the point of not starting. Then recharging it will be a deep cycle. I wouldn't expect a battery to last more than a few weeks that way.
1979 KZ-750 Twin
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- ramtough_63
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