LG G3 extended battery shows as 3000mah

[AC Question]

I bought a new extended capacity battery for my LG G3 and in the battery apps (CPU-Z, Charger Tester, Ampere Meter) it only shows as 3000mah

 

[belodion]

I think I've heard of that happening before. I don't know
whether there's a fix. I'll request
a move to the G3 forum.