Does 12.6v mean charged?

[johnsmith222]

Hi guys.

The battery on my new ZX9R reads 12.6v but appears to be dead.

I was under the impression that 12.6v meant that it was charged/good.

The starter spins for a very short time before stopping and resorting to the clicking noise.

I've put it on charge just now, but just curious as to why it seems to be bad even though it's reading 12.6v.

Thanks for any help.

[cb1rocket]

its needs to be tested under load, do the test again with the meter attach and i bet the volts drops quite rapidly to about 9 which is where its in need of replacement

[johnsmith222]

The voltage drops to above 10v when under load. I've put it on the charger for now and hopefully that will sort it out.

[Vincent]

It might charge up to 12.6 V but does it hold that charge? Leave it overnight and have another look. I charged one up last week that kept going flat on the bike - it was at 13.6V after charging but dropped to 12.5 overnight.
____________________
Space Is Deep

[alains]

12V battery are composed with 6 elements . one element is 2.2V at charging end , and 1.8V at discharging end . so 13.2V when fully charged and 10.8V fully discharged . you may mind about a loss of 5 to 15% with the age and the maintenance of the battery . in brief under 12.8 fully charged is not good !
at any battery charge when i disconnect from the charger , i check heath & voltage then i let it cool down for 2 to 4 hours , then check voltage again and if you've lost more than 0.1V it's not a good sign
____________________
the worst day fishing is better than the best day working

[P.]

My Bandit battery showed 12.7, upon turning on ignition and hitting the starter it dropped to 1.5

[EazyDuz]

the batt in my virago is on its way out. When i found out my reserve fuel didnt work i was cranking the engine over for about 25-30 seconds worth overall and it killed the battery. Charged it up again and its holding out as long as i run the bike at least once a week.
Some bikes have naff charging systems too, my bike for one.
____________________
To shreds you say? Tss tss tss

[johnsmith222]

Hi guys.

I have fully charged the battery on the 9r and I have just tried to start it and the starter starts slowing down very quickly and I am just getting a massive backfire.

Is there anything else I need to do (eg, is the engine flooded) apart from get a new battery?

[doggone]

[johnsmith222]

I had turned the petrol tap off.

[Nb]

LOL And to think you were going to buy a new battery.
____________________
Cbr1100xx blackbird gone, mk4 golf gt tdi chav now
Colin1 wrote 'Im grateful for what i can get, which isnt all that much.'
Columbus travel insurance are crap!! Do not use!

[stonesie]

https://www.marxrv.com/12volt/voltchart1.gif


That wont help you to remember your fuel tap or kill switch though

[janner_10]

Funny - and at least it's cheaper to resolve!
____________________
Yamaha FZS600 (Now gone to heaven) > CBR600F4i (SOLD) > '99 YZF-R1

[GreenPan]

[johnsmith222]

I think I do need a new battery.

It won't start off the button even though the starter motor turns. It will spin for a bit and then the bike will backfire loudly. The bike bump starts no problem first time.

[iooi]

[johnsmith222]

[Nb]

[johnsmith222]

[Vincent]

[johnsmith222]

[Nb]

When the bike does that (clicking) what voltage does the battery go down to exactly? I saw in one of your earlier posts you said doesnt go below 10volts was that correct?
If the battery checks out fine you need to move further down the line looking at the cables to the starter, if you are confident with a multimeter see this video https://www.youtube.com/watch?v=yV5wdGtP34o
____________________
Cbr1100xx blackbird gone, mk4 golf gt tdi chav now
Colin1 wrote 'Im grateful for what i can get, which isnt all that much.'
Columbus travel insurance are crap!! Do not use!

[iooi]

Next time you get that clicking.

Hit the starter motor with something. Then try starting again.

My divvy used to do that and it was the starter motor sticking.

As to the battery. What milage do you do? and how long between rides.

As you siad could well be the alarm draining battery.
____________________
Just because my bike was A DIVVY, does not mean i am......

[G]

[cb1rocket]