Power supply for Bettertrim trimmers. Reverse compatible with older battery systems. This setup will also allow momentary control of the trimmer in single stage or turret systems using either switch. It plugs right into the plug on the trimmer, OR the plug on the auto-trim wiring harness.

Bettertrim2 system:

https://www.ebay.com/itm/176549366167

Bettertrim1 system:

https://www.ebay.com/itm/176190197160