The Solo 727 MK2 Charger is compatible with both the Solo 760 and Solo 770 Battery Batons. This charger is manufactured by Stontronics.
1.
The original Solo 727 charger is compatible with ONLY the Solo 770 Battery Baton. This Charger is manufactured by ANSMANN. You can easily tell the difference between the current and new charger by referring to the labels on the front and rear of the product:
Front Label
Solo 727 MK2 (from November 2019 by Stontronics) charger
Back Label
Solo 727 MK2 (from November 2019 by Stontronics) charger