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I am going to buy an agm battery soon. Most of them say to charge at 1.25 or 1.5 amps. My battery maintainer is rated 2 amp. Do i need to buy a new charger? Or is this one fine? Don't
want to ruin a new battery.
want to ruin a new battery.
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83 gs850
07 vtx1300c -
AGMs are hard to ruin, but they also almost never need charging. Just slap it in and run it. Throw away that charger, it won't be necessary, an AGM can easily go a winter or even two without any charging at all and still have plenty of juice left to start a bike. They are that good. -
2 amps is too high for a regular battery. Not sure about an AMG battery though.Ed
To measure is to know.
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Regular batteries need charging.Comment
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I recall reading that they need AGM-specific chargers.1982 GS1100E V&H "SS" exhaust, APE pods, 1150 oil cooler, 140 speedo, 99.3 rear wheel HP, black engine, '83 red
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Just read up a little and apparently gel and agm are two different things gel needing a different charger. Also looked at my charger and for years I thought it was 2 amp; it is 1.5 negating my original concern.83 gs850
07 vtx1300cComment
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FWIW, most charge rates for any battery are scaled by the Amp-hr rating of the battery independent of battery type. You will typically see C/10 as a standard safe changing rate which for an 14 amp-hr battery is 1.4 amps.
Having said that when you apply 14.5 volts to a 15% depleted (SOC=85%) 14 amp-hr Lead Acid battery it will be charging at about C/5 (.20C) but varies with state of charge (the more discharged the higher the rate). For a 14 amp -hr battery that would be correspond to a rate of 2.8 amps.
There is a typical lead acid battery characteristic posted at the bottom of the Quick Test link.Last edited by posplayr; 02-07-2016, 06:46 PM.Comment
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