Battery indicator 15.04

[Vendo Bici]

Hello everyone,

 i have just updated my notebook from 14.10 to 15.04 and lost the
battery indicator.

I have seen it's a known bug:
https://bugs.launchpad.net/ubuntu/+source/xfce4-power-manager/+bug/1446247

I would be pleased if someone suggests a workaround/alternative
application to show battery status in the panel, of course if there is
a way to do so!

Thank you in advance.
-- 
Francesco