very warm battery, is that normal? - SV650.org

14-10-11, 07:06 PM

I noticed yesterday morning that my sv was a little reluctant to start, so when I got home in the evening I decided to remove the battery to charge.

I had only done a 15 min ride in traffic, left stood for about 20 mins then took the battery out, but it was really really warm.

Now is that just because of the exhaust and normal, or is something wrong?

Lee

Biker Biggles · 14-10-11, 08:00 PM

Did it smell nasty as well?Best idea is to get a multimeter and check the charging levels.If it is overcharging it will get hot,smell nasty and cook itself.It can also leak acid if it gets really bad.

maviczap · 14-10-11, 08:02 PM

Sound like the old reg/rect problem, but check charging levels first before replacing it

14-10-11, 08:02 PM

no smell, but will be testing with a multi meter this weekend I think, no idea how old the battery is, Ive had the bike over 2 and 1/2 years.

The bike has been struggling to start due to not turning over very well, even yesterday when I charged the battery, it took only 15 mins to charge up on trickle charge which seemed strange.

NTECUK · 14-10-11, 09:12 PM

Well if you can get to my work sat morning,I'll ill pop it on our battery tester.

15-10-11, 08:13 AM

Hi ya NTEC, thankyou for the offer, only just seen your reply and off out in about 20 mins. If I dont diagnose it this weekend, can I pop by friday avo as I finish work at 3pm?

NTECUK · 15-10-11, 09:10 AM

Got 2 weeks off but Ruth will test it for you .

15-10-11, 03:06 PM

Thanks, but think Ive found the culprit;

Fully charged battery off the bike is 13.2v

Running at tickover without lights is 19.3v, with is 18.9v

running at 5K rpm with lights on is 19.3v so I think its fairly likely the voltage regulator is goofed, no wonder the battery was getting warm!!!

NTECUK · 15-10-11, 03:40 PM

Yep thats the Problem,
so the lights are nice and bright then

14-10-11, 07:06 PM	#1
leebex Guest Posts: n/a	very warm battery, is that normal? I noticed yesterday morning that my sv was a little reluctant to start, so when I got home in the evening I decided to remove the battery to charge. I had only done a 15 min ride in traffic, left stood for about 20 mins then took the battery out, but it was really really warm. Now is that just because of the exhaust and normal, or is something wrong? Lee

14-10-11, 08:00 PM	#2
Biker Biggles Member Mega Poster Join Date: Jan 2005 Location: Barnet Herts Posts: 5,071	Re: very warm battery, is that normal? Did it smell nasty as well?Best idea is to get a multimeter and check the charging levels.If it is overcharging it will get hot,smell nasty and cook itself.It can also leak acid if it gets really bad. __________________ On a clear day we stand there and look further than the ordinary eye can see.

14-10-11, 08:02 PM	#3
maviczap Member Mega Poster Join Date: Mar 2007 Posts: 9,097	Re: very warm battery, is that normal? Sound like the old reg/rect problem, but check charging levels first before replacing it __________________ We're riding out tonight to case the promised land Make everyday count RIP Reeder - Jolly Green Giant and comedy genius

14-10-11, 08:02 PM	#4
leebex Guest Posts: n/a	Re: very warm battery, is that normal? no smell, but will be testing with a multi meter this weekend I think, no idea how old the battery is, Ive had the bike over 2 and 1/2 years. The bike has been struggling to start due to not turning over very well, even yesterday when I charged the battery, it took only 15 mins to charge up on trickle charge which seemed strange. Last edited by leebex; 14-10-11 at 08:04 PM.

14-10-11, 09:12 PM	#5
NTECUK Member Mega Poster Join Date: Apr 2011 Location: essex Posts: 5,314	Re: very warm battery, is that normal? Well if you can get to my work sat morning,I'll ill pop it on our battery tester. __________________ Raisin cookies that look like chocolate chip cookies are the reason I have trust issues.

15-10-11, 08:13 AM	#6
leebex Guest Posts: n/a	Re: very warm battery, is that normal? Hi ya NTEC, thankyou for the offer, only just seen your reply and off out in about 20 mins. If I dont diagnose it this weekend, can I pop by friday avo as I finish work at 3pm?

15-10-11, 09:10 AM	#7
NTECUK Member Mega Poster Join Date: Apr 2011 Location: essex Posts: 5,314	Re: very warm battery, is that normal? Got 2 weeks off but Ruth will test it for you . __________________ Raisin cookies that look like chocolate chip cookies are the reason I have trust issues.

15-10-11, 03:06 PM	#8
leebex Guest Posts: n/a	Re: very warm battery, is that normal? Thanks, but think Ive found the culprit; Fully charged battery off the bike is 13.2v Running at tickover without lights is 19.3v, with is 18.9v running at 5K rpm with lights on is 19.3v so I think its fairly likely the voltage regulator is goofed, no wonder the battery was getting warm!!!

15-10-11, 03:40 PM	#9
NTECUK Member Mega Poster Join Date: Apr 2011 Location: essex Posts: 5,314	Re: very warm battery, is that normal? Yep thats the Problem, so the lights are nice and bright then __________________ Raisin cookies that look like chocolate chip cookies are the reason I have trust issues.

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