batterystats.bin has nothing to do with battery indicators or usage. Removing it - is totally pointless.
Battery recalibration process for "smart" lithium-ion battery seems to be just another um legend...
https://plus.google.com/105051985738...ts/FV3LVtdVxPT
Just make sure that your battery is fully charged via something which is not your computer USB port - that's all you could do.