Njoy Ranger 30KR User Manual page 69

When replace the batteries, install the same number and same type
of batteries.
Do not attempt to dispose of batteries by burning them. This could
cause battery explosion. The batteries must be deposed according to local
environmental regulations.
Do not open or destroy batteries. Escaping electrolyte can cause
injury to the skin and eyes. It may be toxic.
Please replace the fuse only with the same type and amperage in
order to avoid fire hazards.
Do not disassemble the UPS system.
This symbol on the product or on its packaging indicates that this product shall
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