charging

I bought a Warn Evo 12-S winch that comes with a controller that can work attached by a wire or by blue tooth remote. There are no charging ports on the remote and it came with no instructions. How does one charge the remote? How long does it take? Any things to avoid with regard to charging...

I bought a Warn Evo 12-S winch that comes with a controller that can work attached by a wire or by blue tooth remote. There are no charging ports on the remote and it came with no instructions. How does one charge the remote? How long does it take? Any things to avoid with regard to charging...