wild foamy Posted January 17, 2009 Share Posted January 17, 2009 Hi everyone. im getting myself a little satnav and would like it to be able to charge from my bike whilst im riding. i can use the satnavs' mini USB port to supply the power (5Vdc), and because maplins sell the individual connectors i can make an adapter without much of a problem. BUT. my bike uses a 6V regulated supply for the indicators and brake light, would i be able to run a second wire from the Positive terminal on my 6Vdc battery, drop it through a 5Vdc regulator to the USB plug and then run a common ground from the USB plug and the regulator to the negative terminal on the battery, with an on/off switch on the handlebars i was aiming for a 0.5 amp draw, which should be okay as my haynes manual indicates the charging current is a minimum of 0.8A (lights on @ 3000RPM) up to 2.0A (lights off @ 8000RPM) any advice would be appreciated Steve Link to comment Share on other sites More sharing options...
pilninggas Posted January 17, 2009 Share Posted January 17, 2009 that should work fine, in fact its a great idea as the bike is 6volt. any of the 1-1.5amp voltage regualtors would work and should provide a rock steady 5 volts to drive the sat-nav. id use something like this:http://www.maplin.co.uk/Module.aspx?ModuleNo=10529 Link to comment Share on other sites More sharing options...
wild foamy Posted January 17, 2009 Author Share Posted January 17, 2009 Lol, great minds think alike, i was just on the maplins website as i drew up that little schematic. quick blast up to andover tomorrow then to go shopping for some parts Link to comment Share on other sites More sharing options...
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