Ultra-Thin

[dz20]

Does anyone have one? I have had mine for about 3 months now and it now takes over 10 hours for the extended battery to reach full charge. Is the battery going dead already? or is it somehow no longer displaying the accurate amount of blue lights on the side?

[sbirsen]

I got one about 4-5 months ago, and its working fine so far. Charging does take longer than the internal battery, but definitely not 10 hours.

Unfortunately it seems the battery management programs I tried are unable to read external battery, as they think it is connected to AC power. However a software named "Battery Care" can read the power flowing through, while you use the laptop. That might allow you to understand if your external battery is underperforming.

Other than thay I would either measure the voltage of the external battery's pins witha multimeter or contact the seller.