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Offline grizzlybear

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Re: Connected battery wrong way round
« Reply #10 on: April 19, 2021, 05:21:26 AM »
This technical stuff is too much for me, just glad it worked :123:
Safe Riding
Dave( Grizzlybear) honda 125T,  Z650C2, GPZ750, GTR1000, VX800, VN1500 ,2013 tiger800,2018 Tiger800Xr, CG125 and loads of C90`s  :)

Offline awjdthumper

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Re: Connected battery wrong way round
« Reply #11 on: April 19, 2021, 02:15:37 PM »
Having researched this a bit further, it now looks as though the main fuse blew because the rectifier diodes effectively shorted its output to ground. I thought the diodes might have blown instead but, for the Tiger 800, they should have a bigger current carrying capacity than the 30 A fuse.

It also looks as though all modern road vehicle electronics will have been designed to provide reverse polarity protection and so, even if the main fuse had not blown, no damage would have been caused by a short reversing of the polarity of the battery. If this protection was not built in, the electronics would probably have been damaged long before the main fuse blew.
Suzuki GSX1400, Armstrong MT560 + collection of classic British bikes

Offline grizzlybear

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Re: Connected battery wrong way round
« Reply #12 on: April 19, 2021, 03:01:24 PM »
Cheers, that explanation makes me very happy :123: :031:
Safe Riding
Dave( Grizzlybear) honda 125T,  Z650C2, GPZ750, GTR1000, VX800, VN1500 ,2013 tiger800,2018 Tiger800Xr, CG125 and loads of C90`s  :)

 


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