T839 battery was loosing power

[rickNrick]

I won't really go into battery life, but the original battery of my Sidekick 4G T839 is loosing power and its maximum is only half day. Believe it or not, this new mpj battery is my first replacemnt battery over 2 years. The battery lasts just as good as (or even better) the stock battery when I got them two years ago. My only grip is that it takes longer to fully charge:3

 

[Rukbat]

Larger battery capacity, same charge rate = longer charge time. Simple arithmetic.