nokia lumia 2520 battery

[Lev Samovsky]

Has somebody mentioned the following problem : when the tablet is connected to the power keyboard, there are three different battery indications E.g.; battery №1(tablet) ? shows 70% , battery № 2( power keyboard)- 0 % , but the mark next to the battery icon shows incomprehensible digit -e.g 25% ( I think it must be the same as battery №1!), which leads to the early shutdown of the tablet even if the battery №1 shows enough of the remaining percentage. And if the tablet is disconnected from the power keyboard the battery indication is ok.