While you wait for answers, we may have found some information which could help you.
Click here for Spares Hedge TrimmerReplacement charger?
B&D BEHT150 stamped 2018-03-58?
Replacement battery for gardenline hedge trimmer?
How to replace fuel tank?
How to fix loose connection in hedge trimmer Bosch 7000 AT?
Macallister 250W hedge trimmer?