Maintenance Instruction
5.9 Maintenance of battery
● Maintenance of service-free battery
Special maintenance is unnecessary. Observe the
inspection hole of electrolyte hydrometer: Green—the
battery is well charged; Black-
White-
the battery is extremely low; In case of Black,
the battery shall be cha
rged; in case of White, the
battery shall be changed.
Figure 5-17 Inspection of battery
Warning
The battery electrolyte is corrosive. If it splashes on eyes or clothes, wash with clean water at once and come to
the doctor; otherwise it may cause serious injury.
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