Reply To: Optimate lead as power supply Great British Handcrafted Motorcycles › Forums › CCM Motorcycles – General Discussion › Optimate lead as power supply › Reply To: Optimate lead as power supply 26 November 2022 at 19:46 #13553 TF 13Member As long as you use the transformer with the lead it should be okay, but don’t forget to disconnect it once you are home or you could drain the battery.