I bought three of these chargers for three Profoto 7b and/or 7b2 batteries that I recently ran through Replaced LifePO4 batteries. All good except for the plugs. Keep that in mind when using it for your Profoto 7b packs. The plug has an internal positive pole that is female, not male. To fix this I had to cut open the old chargers and solder their connectors to these new chargers. In the photo I uploaded, the Profoto connector is on the left.