While you wait for answers, we may have found some information which could help you.
Success
Message
Faulty Bosch AL3640CV Charger or Battery?
Bosch al3640 cv?
Bosh roteck battery mower shudders/spins but then stops?
How can I fix?
re spring lever on Bosch 34R mower?
Faulty Bosch AL3640CV Charger?
Bosch AL 3640 CV charger repair & parts identification?
How can I fix my Bosch Rotak 37 lawnmower?
Bosch charger Al 3640 cv for lawn mower is not charging. No lights?
Repairing a Bosch AL 3640 CV lawnmower charger?
faulty bosch-al-3640cv-battery-chargerh?
Bosch Rotak cuts out after 3 seconds?