Replaced battery, 60mA parasitic draw when off,Cant localise

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

So was about to go out on the Er6f, to have a little ride before some shopping.... I REALLY need to get out the house.

Anyway turn it on and...... nothing. not ridden it for about a week and a half.... But nothing not even a whimper....

Got the my tester out and the battery is reading 2.8v :/ the charger doesnt even want to trickle charge the thing. So deader than a really dead thing thats rotted away and turned to dust.

I dont want to be spending money.... but i just found a cheap battery...
https://www.tayna.co.uk/motorcycle-batteries/enduroline/ytx12-bs/
Any known horror stories on this battery? Probably a rebadge of some oem?

Anyone think it would do?

I noticed there was another er6f dead battery thread. And there was mention of maybe the rectifier was cooking the battery... Obviously at this stage I cant test that.

But wanted to be sure, when i get this battery and warm up the bike. What do i need to look for? the voltage on the battery terminal? if that goes over 14.5 v while running?
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Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

Minty · World Chat Champion Joined: 23 Dec 2005 Karma :

Can you not just bump start the bike?
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My fingers smell of your mum.

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

Dont think bump starting a bike with a 2v battery is possible...
Though one charger refused to try and charge it, the other charging seems to be recharging the battery so might not be totally dead.... Its up to 11v now so might be able to recover this without having to get a new battery.
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Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

WD Forte · World Chat Champion Joined: 17 Jun 2010 Karma :

Whatever you buy will be better than what you have

When running you want to see between 13.8-14.5V at the battery terminals, no more no less. so check this with lights on and off.

It may be wise to check for parasitic drain when the bike is switched off
as even a clock, alarm, immobiliser etc will pull it down over time if its left standing for long periods
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bikers smell of wee

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

You can sometimes "jump start" a battery charger. There is such a low voltage, it doesn't see there being a battery attached.

If you attach the charger to the battery then get another battery which has 12v, attach wires to it and touch them to the terminals, it might click the internal relay and start charging.

Be aware, it might just be totally dead and that they can gas like hell when you try to charge them so supervise it but I have recovered batteries that flat before using this method.

EDIT: I've even used a square 9v smoke-alarm battery to "jump start" a charger before.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

Good news battery managed to charge up and bikes runnign again. Even was a super easy start too... Ill check battery voltage shortly, its just warming up now
____________________
Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

doggone · World Chat Champion Joined: 20 May 2004 Karma :

The odd time you might get away with it, Lead acid does suffer a permanent reduction in capacity after being let get really low, but a few days is less bad than weeks.

wr6133 · World Chat Champion Joined: 31 Dec 2013 Karma :

If you do replace it for the sake of less than a tenner get a known make https://www.ebay.co.uk/itm/MBT12B4-MOTOBATT-Quadflex-AGM-Bike-Battery-12V-11Ah/312599424178?epid=2037796960&hash=item48c860acb2:g:mTAAAOSwtEleeGS0

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

And other good news BTW, after warm up the circuit tester read 14.48 given resistance in the wires I'd say the rectifier is perfectly on the dot 14.5.... So no need to change that.
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Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

Not a bad plan to see if it's holding the charge once recovered. They sometimes charge up but then slowly discharge over a few days.

Note down the resting voltage and check it every few hours to see if it's staying at a decent level.

I keep discharging batteries totally flat because I kill the engine on my bullet with the decompressor then forget to turn off the ignition. If it stops with the points closed, it discharges the battery. They usually recover but to a lower resting voltage each time. After 3 or 4 times, they start to really go downhill. Presumably because the plates sulphate.
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“Rule one: Always stick around for one more drink. That's when things happen. That's when you find out everything you want to know.”
I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

Well that answers that then.... Battery died on me while I was out in town :/

So dead dead dead dead dead battery...

i started up fine and ran fine for the 5 mile trip in... did a little shopping and then got on the bike powered up, FI light flashed a moment and then dead.... nothing.

Tried bump starting it... but no hills here gave my self an asthma attack trying to push it... didnt work...

Had to get dad to come out with a jumper cable... he brought the trailer just in case.... and good thing to, the bike would start under the car battery but as soon as i took the jumpers off the bike died... Which worries me tbh. I thought even with a dead battery the engine should keep cycling under its own power?

So back home now with a stinking headache from being stuck out in the sun and being a little dehydrated... and cooked in bike boots Sad

And now have to spend money I dont want to spend Sad

oh joy

____________________
Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

Riejufixing · World Chat Champion Joined: 24 Jun 2018 Karma :

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

well this isnt good news :/
just went to bike to go do some shopping... ok its been a week? two? since i last ridden... the new battery is down to 11v and wont start :/

I think theres now something seriously wrong with my bikes electrics :/

Any idea? What the hell can be discharging a battery when the bikes turned off :/
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Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

theres a 60mA parasitic drain on the battery when turned off :/ this is not good :/
____________________
Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

wr6133 · World Chat Champion Joined: 31 Dec 2013 Karma :

12V socket/USB? I have one that sucks power, I bought the version of it with no LED, turns out there is an LED, inside it. Same as the LED one just without a hole to see it through! Little shit was on as soon as the wires were connected to the battery.

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

yeah got a usb socket, but its attached to the mini bulb in the headlight, that only gets power when the bike is turned on... so it shouldn't be that thats causing it.

and even if there was a hidden led, 60mA is a bloody bright led :p
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Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

doggone · World Chat Champion Joined: 20 May 2004 Karma :

A simple trick, in a dark shed or something open the fuse box and pull the fuses one by oe.
Lightly touch the blades on to the terminals.
The one taking a slight current you might see a tiny spark.
What if anything is live when ignition is off.
On cars the hazard light switch is not unusual to need replacing because that is live with no key in.
If you do find the problem fuse you could pull it when bike is not in use pending further investigation.
Anything added aftermarket is first place to look.

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

Tomorrow i was going to do something similar. Attach the meter to the battery, and pull the fuses till i find the one thats drawing, then i can focus on that circuit to see what the heck is going on.
____________________
Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

This is fun :/

Soooooo multi metre out sensing the 60mA draw when off... pulled each main fuse to try and localise where its coming from and still drawing 60mA.

Im really struggling to localise what could be causing this drain.

Any ideas? Could a dirty plug be internally shorting some how?
____________________
Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

stinkwheel · Bovine Proctologist Joined: 12 Jul 2004 Karma :

NutsyUk · Nearly there... Joined: 22 Jun 2016 Karma :

ohh thats good , though i was going to have to check every single plug and wire on the entire loom... might have to be a tomorrow thing now as int he middle of making a mould... but thanks will check
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Yamaha FZ8/Fazer800 (split headlight one) 2014, ~~gingerly getting used to the massive increase in HP and not killing myself in the process!~~ That was easy to get used to.
Kawasaki ER6F 2007 650 Gonna sell as a project bike!
~~Lexmoto XTR S 125~~ Sold!

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Taking a wild guess at a 12ah battery (partly based on easy maths) 60ma drain will kill the battery in 200 hours, so about 8 days. So that’s about right

Looking at a wiring diagram for an er6, there are a couple of extra separate fuses if it has abs.

If you check over the main fuse in the starter relay, is there a current drain there?

All the best

Katy
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