Honda HRX537C Owner's Manual page 57

CHARGING THE BATTERY (HME TYPE)
The lawn mower does not have an internal charging system. A plug-in
charger is provided to recharge the battery. Use the plug-in charger after
prolonged storage or anytime you notice a decrease in starter motor speed.
To assure maximum reliability, the battery should be recharged (boost
charged) before prolonged storage and charged again at the beginning of the
mowing season. Charge the battery in a dry, well-ventilated area where the
temperature is moderate.
A battery can explode if you do not follow the
correct procedure, seriously injuring anyone nearby.
Keep all sparks, open flames, and smoking
materials away from the battery.
Battery posts, terminals and related accessories contain lead and lead
compounds. Wash hands after handling.
1. Remove the battery cover [1] by depressing the tabs [2] located on the
sides and releasing the tab on top of the battery cover.
2. Disconnect the battery connector [3] by depressing the connector tab [4]
and pulling the battery connector from the harness connector [5], which is
located inside the battery case, above the battery.
[1]
E
 WARNING
[3]
[2]
[4]
7. MAINTENANCE
[5]
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