BA900D has three ways to supply power：12 volts Battery/20w Solar panel/Adapter.

A large 20W solar panel and 12V battery provide efficient power conversion for fences up to 160km in length. A unit that is ideal for both permanent fencings and in situations where a temporary fence is needed.

If the fence is activated by an animal making contact with the fence, the unit will only generate a brief pulse to prevent harmful electric shocks.