Bought new battery, Very slow charging

So my mac after about 4 or 5 years of use got a pregnant battery which was damaging the unibody so i bought one from here and replaced it. After i replaced it, everything was normal, the battery life and just in general everything. but the only problem is that it charged EXTREMELY slowly.

I tried both the default power adaptor that came with the mac and a aftermarket power adapt made for a 17" macbook which has a higher wattage.

Any solutions to this besides another new battery?

quick answers are appreciated since i plan to use this mac for my school soon