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Pete_kaye · 5th Dec 2014, 7:29 pm

I was given an old 12v car battery charger recently ,described as 'not showing any charge on the meter' and found it only gave 11.5 v on open circuit. However, there was a slight kick on the ammeter when connected across a large 10R resistor. It looks difficult to open as it uses 6 plastic breakable expanding plugs to hold the case on.
Before I start, what is likely cause of fault and will it be easy to fix?

5th Dec 2014, 7:29 pm	#1
Pete_kaye Octode Join Date: Jun 2005 Location: Sheffield, South Yorkshire, UK. Posts: 1,227	12V Charger I was given an old 12v car battery charger recently ,described as 'not showing any charge on the meter' and found it only gave 11.5 v on open circuit. However, there was a slight kick on the ammeter when connected across a large 10R resistor. It looks difficult to open as it uses 6 plastic breakable expanding plugs to hold the case on. Before I start, what is likely cause of fault and will it be easy to fix?