Charging issues

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Nowellyboy
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Joined: Wed Oct 28, 2020 3:18 pm

Charging issues

Post by Nowellyboy »

Merry Christmas to you all, hope u had a nice day yesterday.

Right I'm having a bit of an issue with my charging voltages.
Iv currently fitted a new battery and also changed the rectifier to a mosfet type from r1/r6/Fjr1300.
I'm getting figures of 15.2v at idle and rise to 15.4v at high revs.
I have made my own loom using the 3 yellows direct from the stator / oe wiring, red wire straight to positive of the battery from the r/r via a 40a maxi fuse and the green from the r/r to the negative terminal of the battery.

Could these voltages be too high to cook the battery as iv read in the auto data book that 15.5v @ 5000rpm is ideal.

Please help and thanks in advance
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Wicky
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Re: Charging issues

Post by Wicky »

Anything above 15V would be a tad excessive

Technical & Troubleshooting > Bike battery charging problems

https://www.electrexworld.co.uk/acatalog/Technical.html

What's the FH serial on the R/R? (FH001?) is it a genuine one or a cheap Chinese copy?

Also is the multimeter reading accurately? Try another for a second check measure.
It may be that your whole purpose in life is simply to serve as a warning to others.

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Nowellyboy
Posts: 12
Joined: Wed Oct 28, 2020 3:18 pm

Re: Charging issues

Post by Nowellyboy »

Wicky wrote: Sat Dec 26, 2020 3:17 pm Anything above 15V would be a tad excessive

Technical & Troubleshooting > Bike battery charging problems

https://www.electrexworld.co.uk/acatalog/Technical.html

What's the FH serial on the R/R? (FH001?) is it a genuine one or a cheap Chinese copy?

Also is the multimeter reading accurately? Try another for a second check measure.
Cheers for the reply matey.
The reg rec is a Fh012aa which I purchased off ebay but its a copy.
Iv grabbed another multimeter from work just now so I'm gonna test it again tomorrow
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Wicky
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Re: Charging issues

Post by Wicky »

"but its a copy."

If a Chinese dodgy copy then you're likely worse off than before you started.

Consider this FH020

https://www.ebay.co.uk/itm/2017-yamaha- ... 3823538675
It may be that your whole purpose in life is simply to serve as a warning to others.

ImageVTR Firestorm and other bikes t-shirts
Nowellyboy
Posts: 12
Joined: Wed Oct 28, 2020 3:18 pm

Re: Charging issues

Post by Nowellyboy »

Wicky wrote: Sat Dec 26, 2020 7:57 pm "but its a copy."

If a Chinese dodgy copy then you're likely worse off than before you started.

Consider this FH020

https://www.ebay.co.uk/itm/2017-yamaha- ... 3823538675
True point my friend.
Il hold out from the copies then and get hold of that then. Christmas has crippled me this year especially with lockdown shorting me days with work so money is tight too lol.
Thanks for ur help
Lee
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