Can I Fully Charge My 6S 22A Li-Po Battery With IMAX B6AC

Can i charge my lipo battery that has 22a capacity, 25C discharge rate with an imax b6ac charger. It says max 6A but actually I didn’t understand what that is mean.

And If I cant charge, which charger would you recommend?

Yes you can - it will just take a long time because of the 6A charging limit. Looking at about 4-5 hours to charge the 6s 22Ah from 0-100% on that charger.