Thumper Club Forum

Technical => Bike Problems/Questions => Topic started by: Anna on August 14, 2006, 10:45:51 AM

Title: fried battery
Post by: Anna on August 14, 2006, 10:45:51 AM

hi guys, does anyone know what a 1991 electric start srx6 should charge at? When checking battery voltage without engine running its showing 13 volts, with the engine running and at around 2500rpm its showing 14.2 volts. This is the second battery on it and its leaking, is it because the battery is being over charged? Any ideas anyone?

Anna

Title: Re: fried battery
Post by: Steve H on August 14, 2006, 10:55:31 AM

The spec for the twinshock bike is here

http://www.srx600.f2s.com/srx600/technical/elecspec/elecspec3.php

I would image the monoshock would be close to this

Title: Re: fried battery
Post by: andy230 on August 14, 2006, 11:07:09 AM

Is it overfilled (with electrolyte)?

Shouldn't leak...

Not sure if its overcharging.  I had similar to this on a Norton twin- I was in the middle of france, and the battery was dying.

On investigation it was VERY hot and started to boil dry.  I had to keep all the lights on as it was (apparently) un-regulated.  Got back to the UK tho...

Anyone else??

a

Title: Re: fried battery
Post by: Anna on August 14, 2006, 04:54:00 PM

cant be overfilled, i just used the pre filled juice that came with the new battery. why would it be over charging?

Title: Re: fried battery
Post by: 002 on August 14, 2006, 09:26:14 PM

Could be over charging !

A Buggered.......Sorry !That should read.....A Bu@@ered regulator/rectifier ususally causes that.
Sometimes the alternator,but hazard a guess and say the Reg/Rectumfrier.   

Jethro

Title: Re: fried battery
Post by: peterj on August 15, 2006, 10:07:40 AM

14.2V isn't that high really, but could be a symptom of poor earthing of the reg/rec. I run an extra earth wire from one of the mounting studs to the frame. I'd also check how good the battery earth is. If the voltage doesn't climb any higher with revs, the reg is probably fine. Multimeters are surprisingly variable in accuracy, so you may be reading high or low by as much as half a volt even with a good one.

Title: Re: fried battery
Post by: John B on September 06, 2006, 10:07:15 AM

Zener diode absent or dud?

Title: Re: fried battery
Post by: martyn on September 13, 2006, 09:39:25 PM

Quote from: Anna on August 14, 2006, 10:45:51 AM

hi guys, does anyone know what a 1991 electric start srx6 should charge at? When checking battery voltage without engine running its showing 13 volts, with the engine running and at around 2500rpm its showing 14.2 volts. This is the second battery on it and its leaking, is it because the battery is being over charged? Any ideas anyone?

Anna

When mine was frying batteries it was reading @ 18v on three different multimeters. should be between 12 & 15. A replacement reg/rec cured mine but I tried three before I found one that worked properly.
good luck mart