Features: The Piggy Back battery can be left attached for charging on the camcorder.
The Piggy Back Battery can be separated and charged on any after market charger.
No more worries about the makers changing the smart chip.
Easy to use with instructions included.
Future models to be introduced shortly after camcorders are introduced; No more waiting 18 months for replacement batteries
Piggy Back Batteries cannot power the camcorder without the original battery attached