The batteries did absolutely nothing when plugged into the Metabo charger. I did some non-invasive measurements of the original batteries. I also removed the cover of one of the "Vanon" knockoffs and observed the connections. (After getting told to not worry about returning them, of course.) Internally the thermistor (to send the battery temperature to the charger) and the fuse were swapped from how the Metabos must have been wired. I swapped the wires and the battery charged as normal. It is hard to comprehend that the "Vanon" factory apparently didn't check this knockoff design in a Metabo charger, much less these particular batteries.
Verified purchase: Yes | Condition: New
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Best Selling in Power Tool Batteries
Current slide {CURRENT_SLIDE} of {TOTAL_SLIDES}- Save on Power Tool Batteries