Over charging
 

I've checked all the posts and can't find anything that answers my question.

I've fitted one of those LED voltage meters and find if I run with the lights on I get 12v, turn lights off and get off the scale overcharge indicated :( :(

I double checked with a multieter when I got home and confirmed 15+ volts.

So question is, can a knackered regulator be masked by a duff battery if I'm seeing an overcharge.


Cheers

Tris

Your battery won't be charging properly unless it's getting something in the region of 15-17v passed across its terminals.

I think that's pretty standard - Sid Squid will no doubt confirm or correct me.

Voltage across the battery terminals should be 11-12V with the bike off, 13-15V with it running (perhaps off-idle). It sounds very much like the regulator/rectifier unti is clapped, stop riding it before you cook something electronic.

I served my apprenticship in a car battery factory and seem to remember 14.4v to the battery when charging as being the correct figure ( not sure about bikes though ).

Battery when being unused should be above 12v ( around 12.5 ish ) if its not should be charged ( again car batterys )

Dont know how much help that is

:oops:

Having just (last night) replaced my regulator. I used this post as my basis for deciding what the problem was http://forums.sv650.org/viewtopic.ph...hlight=battery and Sid was also extremely helpful.

You should be getting 13.5v or more with lights on reving to 5k or over.

I got a none SV one from ebay for £9 all in. SV ones must be crap I think this is the 5th post in a week or so about them going tits up. :twisted:

Absolute maximum of 15 volts.

Make sure the meter is accurate - many aren't - if it is then congratulations, you're the first ever owner of an SV650 that charges too well.

Mostly they undercharge and leave you with a flat battery, anyway the result will be the same; battery grief. However a fried battery - which is what will happen if your bike is significantly overcharging - can't be fixed by sticking it on charge for few hours.

Properly overcharging, that is; loads too much, carries the teensy weensiest chance of the battery exploding, not funny, not even a bit.

Fortunately this mostly happens to Ducatis, so that's alright then.

Cheers everyone :D :D

Better make sure that the meter is accurate before I do anything else!

There must be someone at work in the controls section with a decent calibrated source to check it against. Alternativly I think one of my mates has a Fluke which should be better than my £15.99 one from B&Q!!

Tris

don't tell Peter then :wink:

Still trying to work this one out!!!

Fired up the bike this weekend and left it idling. Voltage started out OK 14v(ish) but slowly crept up to 15.9v!

I found this yesterday

http://www.users.waitrose.com/~paso/regulator.htm

The significant bit being

Does this make any sense as I don't want to get a new regulator only to find it's the battery

Hopefully!!

Tris