If I get it, which battery and charger do you guys recommend me getting?
I just compared 2 batteries on dx and here are the dimensions.
Ultrafire: 1.42 in x 0.63 in x 0.63 in
Trustfire: 1.34 in x 0.63 in x 0.63 in
Looks like the trustfire ones are a bit shorter, maybe that's why you can't close...