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Opened it up again and followed power wires from battery up along radio to power on switch. Reads 18v on multimeter for 1 or 2 seconds all the way up then drops to 1 and stays at one wondering is this normal??

Batteries are all good cleaned contacts and still nothing opened it yesterday and everything looks perfect....it’s still charging the batteries tho !!

Hi all I have a metabo 14.4-18v radio works 100% when plugged in but when I try to run off the battery it won’t turn on empty battery icon appears and E flashes on screen any ideas what’s wrong not much point having a site radio I need power for