For point 6 (charge level jumping to 88% in a very short time) is, as far as I know, caused by gauge callibration being needed See here Graph of the battery charge level - #10 by Quarnero
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For point 6 (charge level jumping to 88% in a very short time) is, as far as I know, caused by gauge callibration being needed See here Graph of the battery charge level - #10 by Quarnero