Beesource Beekeeping Forums banner

Electrical help: Using car battery charger as power supply for OAV.

12K views 21 replies 17 participants last post by  Metropropolis  
Some of the automatic batt chargers have a slide switch marked "start" to help with cranking the engine with a bad batt. For a dead battery if you switch to start for about 5 minutes then switch to charge the battery will normally start to accept the charge as there is normally a little residual voltage in the battery from the 5 minutes of "start". If I want to use this charger to run my vaporizer I just switch to "start" and have no problems. But as the alternator of my ford focus failed on the way home from Dulles int. airport I bought 2 12 volt batteries to get me home so never use the charger for vaporizing anymore
Johno