Ridgid Battery direct charging by providing + to T2 terminal

[@DRAWNBOX]

Thanks I was able to get my batteries charging.

[@giovannaelhassan978]

I have an 18v handheld vacuum that uses a removable battery with just a positive and negative terminal but I would like to use my rigid batteries would this be as simple as wiring the positive and negative from my battery to the terminals on my vacuum or can you advise of a better way or perhaps safer
Thank you

[@wolfgangunger217]

I looked for those chargers. I cannot find one that does an 8Cell battery pack, they all do 1-6 cell.