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Battery resurrection

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El__burro:
Hello, before starting to shop for a brand new battery I've read about "resurrecting" mine (barely used).
I guess my regulator messed it up.
it's a 1 year old MF sealed battery, on a the bike being ridden 3-4 times for short periods.
I have refilled the cells with battery water and let to charge for 3-4 hours;
When it reaches 13.5v it will not go any more, within 5 minutes I unplug the charger it drops down to 8v.

Shall I just dispose of it or it can be cured?

Thanks
el__burro

Laverda Dave:
I managed to resurrect a couple of wet cell batteries in the past using a couple of white tablets Halfords used to sell. I have no idea what was in them.
I have never managed to ressurect a gel battery mainly because they are sealed and despite using an optimate and then giving it some real amps using a car charger. I recently had to buy a new battery for the Blackbird, £70 with discount!  The old one lasted 9 months, the alarm drained it to beyond flat and it couldn't be recovered. Moral, I should have ridden the bike more instead of restoring the 400 during the summer and I should have used the optimate!
Hope you find a cure, if you do let us all know the secret  :)

El__burro:
should a sealed battery have caps on and not let any liquid out?
Mine popped out the first time I charged it.

Thanks

Mag1:
Hi, don't know if you have one already, but trickle charger works by slowly charging the battery to full health. Some will come with indicators which will inform you the battery is beyond repair. If you only ride your bike a few times of the year it's worth investing in one for approx £60 instead of buying new battery every year. As with most batteries if they are not used they lose charge very quickly and never recover. Best of all if hooked up with trickle chargers they will keep yours in top condition throughout the year.

Chris400F:
Pretty sure these are the kind of tablets Laverda120 was referring to.
http://www.halfords.com/workshop-tools/garage-equipment/battery-chargers-jump-starters/granville-bat-aid-tablets-x-12
I seem to recall using something similar many years ago, didn't even know they were still available.
As for the caps popping off, I'm no battery expert but that doesn't sound good to me.

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