infaco PW3 Manual page 12

Installation and connection
Only use INFACO brand 48 volt power supply batteries.
Any use with batteries other than INFACO batteries may lead to damage. The
warranty on the motorized handle will be void if batteries other than those
manufactured by INFACO are used.
In rainy weather, it is imperative to wear the battery belt under waterproof
clothing to protect the battery unit from damp.
Machine use
> Fit the vibrating head on the handle
FAILSAFE
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