About 25 years old, well used, and still going strong
Powered by 12v motorcycle battery which makes it heavy, but OK with shoulder strap
The battery (not original) provides enough power for a small to medium garden
With wall bracket and power cord but NO CHARGER.
Easily charged with any 12v car charger
No plug at charger end of cable
Uses 1.6mm diameter nylon line but auto feed is a bit "iffy"
Manual is available online: https://www.manuals.co.uk/black-and-decker/glc120/manual
Some spares seem to be still available

Collection from East Bergholt

Black and Decker cordless Strimmer (East Bergholt, CO7)