Paul,
So you put it through 1 deep cycle. Big deal. Should be good for 300 or so (from new). Might have knocked a month off the overall life???
High charge current shouldn't hurt an AGM, as I've seen mfgrs. state (or list) charging currents of .3 to 1.0 (and higher) x C. The AGMs have lower internal resistance so they naturally take a higher charge current w/o heating. The .1C max (10% AH rating) came from the last century when chargers didn't have voltage regulation. As the charge (s.g.) went up, so did the internal resistance, so the little trickle charger kept pushing current, and the voltage could go up trying to flow that current (not a smart charger). That size ratio could disipate the heat @ .1C w/o overheating the FLA batts. internals and warping the plates when someone connected the charger and walked away. When you jump started your bike, that charge was voltage regulated, and so was the subsequent 100 mi ride. So riding for 2 hrs was enough to bring the charge up enough to restart the bike, then another 3-4 hrs riding probably topped it off. It would be interesting to see the batts. resting voltage now after you "exercized" it.
Mike,
People get wound up or concerned when they get only a couple yrs. from their factory batts., then spend $80-$150 to replace it (I know, not a big deal relative to the cost of rubber, gas, etc.), and wonder if the replacement batt. and charger they selected will give them reasonable life and reliability. Since we can't bump start these efi space shuttles, batt. life (and jumper cables) becomes more important. My take (living in the cold NE): if I got only 2 yrs, I'd be pissed & change the type and/or mfgr; 4 yrs, well, OK; 6 yrs, I'm real happy; over that is icing on the cake and good for bragging rites. I realize folks in hotter climates will generally get a lower life, but @ 2 yrs., I'd still be pissed.
So you put it through 1 deep cycle. Big deal. Should be good for 300 or so (from new). Might have knocked a month off the overall life???
High charge current shouldn't hurt an AGM, as I've seen mfgrs. state (or list) charging currents of .3 to 1.0 (and higher) x C. The AGMs have lower internal resistance so they naturally take a higher charge current w/o heating. The .1C max (10% AH rating) came from the last century when chargers didn't have voltage regulation. As the charge (s.g.) went up, so did the internal resistance, so the little trickle charger kept pushing current, and the voltage could go up trying to flow that current (not a smart charger). That size ratio could disipate the heat @ .1C w/o overheating the FLA batts. internals and warping the plates when someone connected the charger and walked away. When you jump started your bike, that charge was voltage regulated, and so was the subsequent 100 mi ride. So riding for 2 hrs was enough to bring the charge up enough to restart the bike, then another 3-4 hrs riding probably topped it off. It would be interesting to see the batts. resting voltage now after you "exercized" it.
Mike,
People get wound up or concerned when they get only a couple yrs. from their factory batts., then spend $80-$150 to replace it (I know, not a big deal relative to the cost of rubber, gas, etc.), and wonder if the replacement batt. and charger they selected will give them reasonable life and reliability. Since we can't bump start these efi space shuttles, batt. life (and jumper cables) becomes more important. My take (living in the cold NE): if I got only 2 yrs, I'd be pissed & change the type and/or mfgr; 4 yrs, well, OK; 6 yrs, I'm real happy; over that is icing on the cake and good for bragging rites. I realize folks in hotter climates will generally get a lower life, but @ 2 yrs., I'd still be pissed.
