do they make 18v batteries for it? If not how could i make one using an 18v lithium battery pack? Thanks
It depends on the model. I doubt you can build one.
you should be able to take the battery housing apart and figure out the positive and negative leads the standard Ni-Cd cell puts out 1.55 v and the standard Lithium-ion puts out 3.7 v 12 Ni-Cd cells connected in series produces 18.6 v 5 Li-ion cells connected in series produces 18.5 v i do not know how many amp-hours the BD pack holds if the Li-ion pack needs more amp hours you could connect 2- 5 cell in a parallel circuit