I just came across this topic and thought Id throw this in.
I got my p600 in late November/early December. At first, it took an excrutiatingly long time to charge with the stock charger. After a few weeks and up to mow, it slowly took less and less time to charge. I havent timed it, but it went from taking like 6hrs to charge from <14% to 100%, to probably around 3hrs.
So for those having long charging times with the stock charger, maybe just keep charging over a few weeks? Maybe the charge times will decrease as the battery breaks in.
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