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G6Tanuki · 6th Dec 2014, 9:42 pm

Yes - and the use of well-finned Selenium or Copper-Oxide rectifier-stacks with their high forward-resistance also provided a degree of safe current-limiting when connected to a 'stalled' not-showing-any-volts battery.

Indeed, I remember once hooking up a Davenset charger to the dead battery of a Bedford "J" truck [a seriously-fun tool with a 3.3-litre 6-pot petrol engine and overdrive transmission that could easily manage 80MPH on the flat and quite a bit more given a downhill]. It was only some hours later when the battery boiled-over that I realised the charger was set to 24V and the battery was 12V.

6th Dec 2014, 9:42 pm	#13
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 14,005	Re: 12V Charger Yes - and the use of well-finned Selenium or Copper-Oxide rectifier-stacks with their high forward-resistance also provided a degree of safe current-limiting when connected to a 'stalled' not-showing-any-volts battery. Indeed, I remember once hooking up a Davenset charger to the dead battery of a Bedford "J" truck [a seriously-fun tool with a 3.3-litre 6-pot petrol engine and overdrive transmission that could easily manage 80MPH on the flat and quite a bit more given a downhill]. It was only some hours later when the battery boiled-over that I realised the charger was set to 24V and the battery was 12V.