There is more to that. I don't know how you guys charge your readers but I have common 2A chargers for all phones, tablets, e-readers and other mobile stuff in the house. When I mentioned about this on Polish Onyx forum I've received a very susprising answer. The official ArtaTech representative stated that using any charger higher than 1A would destroy your Onyx e-reader. That sounds very unlikely to me and there was some ongoing discussion on that but ArtaTech did not withdraw from that statement. If this is true then the only reason of that is that their devices do not have a proper charging controller in place which decides on the current used for charging (like on any other mobile device). Very surprising... and no such a warning on a box or user manual. This was discussion about AG2 but I suppose the same applies to other Onyx models. So basically what I am wondering is if any of you use higher current chargers maybe we simply "destroyed" our batteries and this partially explains the short battery life.
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