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Posts: 3486
Location: Elk River, Minnesota | Hiya,
15 is pretty much on the high end for recharging but is acceptable. The reason for this is that the way the on-board chargers work for the most part is they have different charging stages and if memory serves me correctly a microprocessor on the charger will adjust the charge rate based upon battery's discharge condition. Not sure all chargers do this, so I think it would be best to refer to the owners manual or website for further information on your particular brand and model of charger.
I will admit, I'm not as "up" on the information for Charging systems as I am on other aspects, so I am hopeful there will be a few others more knowledgable in this realm who will chime in.
Steve |