PBS is designed to provide years of reliable service in various environments. No disassembly or power

outage maintenance is required. Please perform regular maintenance once a month, using visual

inspection to avoid contact with internal live parts. The inspection items for routine maintenance are

as follows:

⚫ The screen has no warning lights on.

⚫ The screws of the wiring compartment are reliably fixed.

⚫ No damage to the conduit.

⚫ The radiator has no deformation or damage.

⚫ No debris on the surface of the PBS

⚫ There is no abnormal alarm sound inside the PBS

WARNING:

⚫ Use only a soft cloth dampened with water and mild soap to clean the battery.

⚫ Do not use solvents or chemicals that are corrosive or flammable.