How Long Can My Battery Tolerate 17v For?

[b422063]

My regulator rectifier is toast and I've wired in a voltmeter to keep an eye on the voltages whilst I'm waiting for my replacement to turn up (no thanks to Electrex who didn't even answer my email )

In the mean time, I've still got to get to work. With my heated grips on full power and main beam on all the time I can get the voltage down to between 16v and 17v.

This cannot be good for the battery. How long will it tolerate it for? What other issues can I expect from this?

[_Iain_]

My main concern would be over-volting the ecu and frying it at a cost of £1k on a lot of bikes. Closely followed by wiring loom BBQ costing £750+/a potential fire. Battery boiling, then theres all the other little bits of electrickery, dashboards cost a lot of money as do various sensors.

I'd take the bus.
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Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340

[Aff]

The Gassing voltage for a 12V Lead Acid battery at around 10C is something like 14.8V.

Anything over that and you are boiling off it's liquids and damaging the battery.

If you could get it down to about -20C it wouldn't gas but that seems unpractical.

Basically, any amount of time you run at 17V you will be killing it. The colder you get it the slower you will kill it.

I would be finding an alternative means of transport.
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Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[P.]

Unplug regulator, charge battery at work, use minimal electrics.

Alternatively, grab £60 and replace it.

[WD Forte]

What bike? what rectumfrier?
throw us a frickin bone here !
I've worked on a few bikes where the RR was OK but poor connections caused
the black sense wire voltage to float
Voltage rose leading to rotten egg smell + toasted battery

Patching the sense to battery live and the ground to battery neg
got it back in range again
( my bikes RR has been wired like this for years now)

Your RR may well have failed for all I know
but the above test helps to confirm it

How long can you ride like this?
Dont know, but would say not using the bike until its fixed
is the wisest option
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bikers smell of wee

[Baffler186]

In my experience, it took about 40 miles. For the sake of 60 or 70 quid I'd suffer the bus and wait for new RR
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Current: 2009 SV650 S, 1990 Kawasaki GT550
Previous: 2009 CBF125, 1998 GSF600, 2004 FZ6 Fazer, 1978 CB400a Hondamatic

[Rogerborg]

[Fizzer Thou]

From experience of excessive charging voltage,the plates buckle and short out,permanently damaging the battery.

This also happened when a friend who worked in a bus garage borrowed a battery charger from work and put 24vdc across his car battery.It did not do any of his car electrics any good
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Just talk bikes.What else is there?

Always have a 'Plan B'

[monkeybiker]

Is there nobody at work who could give you a lift?

[Kickstart]

Hi

I wouldn't try riding it like that (might with one that wasn't charging - just manually charge the battery regularly).

Only time I have had a regulator / rectifier land up over charging like that the first thing that brought my attention to it was that it fried the control unit for the heated grips. So I wouldn't expect yours to last long

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

[monkeybiker]

I had a regulator go and ended up with a battery like a balloon.

[ADSrox0r]

A crappy connection somewhere in the ignition caused my sense wire to make the regrec go loopy and munch a battery. Chucked in a bypass direct to the battery (No thanks to Honda for picking a shitty route back to the battery in the first place!) and all is well.

How long will it last at 17V? Not long, not long at all. It's merely a matter of what goes pop first. Lay it up till the replacement arrives and get t'bus lad.
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Current bikes: '08 VFR 800 VTEC(yo) , '07 ZZR1400 Winter hack: '95 Aprilia 650 Pegaso Currently lusting after: RC30

[moonzoomer]

I would be more concerned about what type of 17 volts your battery is getting since your rec/reg has expired, is it a DC voltage or and AC voltage, have you tried metering the input to the battery on both an AC and DC scalewith the battery disconnected because you might find the voltage is a lot higher than 17 volts RMS if it is AC due to the knackered rec/reg.

[Nobby the Bastard]

Pull the connector from the genny/alternator/whatever.

Charge the battery every night.

Nothing will be more broken than it already is.
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trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050

[hmmmnz]

as above, "constant loss" that bitch

even if its fuel injected you'll still get a fair few hours riding before the voltage drops enough to stop it running, less obviously if you are running your headlight and heated grips,
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the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[Nobby the Bastard]

[moonzoomer]

[hmmmnz]

[G]

A bit of a bodge, but I reckon you could use a cheap solar charger to sort it out while sourcing a proper unit - something like this should be able to handle 240w alternator www.ebay.co.uk/itm/311021444796 - or £15 for one that can do 360w.

Maybe something I've missed, if anyone knows a reason it's a bad idea?

[Kickstart]

[Pete.]

You don't need an electrex reg rec just buy the handiest 3 phase 5 wire regulator rectifier you can get hold of and hard-wire it to the loom with crimps or chocolate-blocks 3 yellows to the alternator red to live black to ground. They all do the same job to just about the same voltages. Your battery will already be wrecked from over-charging so get one of those too.
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a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[b422063]

Just for all your information, I stopped using the bike after lots of you gave me a virtual slap and said "Get real". It turned my daily commute into a 2 hour one way trip, but it saves having to do it long term if the bike wrecks itself.

New battery for the bike has arrived. The new regulator rectifier arrived in the country less than 48 hours after being posted. It's now been sat in the UK customs for a week. I phoned HMRC about it but apparently I have to speak to my courier regarding it.

I've got a spare Honda regulator rectifier, but it has no wires just a male plug. I hope I can use crimp connectors to wire it in, but I'm not sure which would be which wire.

If anyone's got a Honda regulator rectifier, can you let me know? It's got three connectors one side and two the other, so I would like to guess which is which, but confirmation would be good.

[WD Forte]

There are a shit load of RRs you can patch in quite easily
but you're not helping by not saying/showing what it is you have
So.
Based on current info.
that one, that one and that one are AC in,
that one and that one are the DC out
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bikers smell of wee

[_Iain_]

[_Iain_]

Flame rating? I did a sad

https://memeorama.com/wp-content/uploads/2012/05/dr-zoidbergs-butthurt-cream.jpg
____________________
Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340