Anstoss Coaching Zone Forum

Hello

I am looking for a powerful (> 4400mAh) battery for my HP ProBook 4520s . The reason for this is that I take a train ride and a lot of hours on the battery after about 2 1/2 program out here.

So far I've found some links:

http://www.elecachat.fr/hp-probook-4520s.html

http://www ...