Help with new mod

[toneedo]

I have this http://www.sportsmansguide.com/cb/cb.asp?a=86916

and the battery sucks ...is there anyway i can upgrade the batteries?

 

[admedeus]

I'm sure you can get a better battery at Batteries Plus, if you have one close to you. Are the batteries ever getting fully charged? Could the charger be the problem?