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L.J.Thorpe

  • Posts: 2056
Re: battery charging
« Reply #20 on: October 20, 2008, 08:13:37 pm »
so how are you supposed to recharge them then ???

dai

  • Posts: 3503
Re: battery charging
« Reply #21 on: October 20, 2008, 08:45:39 pm »
Ideally when they give a reading of 12.06 volts. I researched this years ago, if you want the optimum battery life you should recharge when it is half empty, and when it is half empty it will read 12.06 volts.
Log the hours that the battery is in use and keep testing it, once you know how much work it will do before it reads 12.06, you will have a good idea when it's due for a charge.
I would get about 3 days out of my 85amp battery before it would be due for a charge.

Sir Squeaky

  • Posts: 8341
Re: battery charging
« Reply #22 on: October 20, 2008, 08:48:45 pm »
I've noticed after using my flash new charger on the weekend to do a rejuvinating charge, that I had more power today.

I had the varistream set much lower so the pump was really slow, but water was blasting out!
Also when I put it back on charge later it still read 100%. :D

L.J.Thorpe

  • Posts: 2056
Re: battery charging
« Reply #23 on: October 20, 2008, 09:01:23 pm »
hello dai
the ones i use are only 17 to 20 ah
i used to get about 14 or so hours of use out of one before the lamp on the vari started showing low voltage
now i recharge every night regardless of whether i did 7hrs or 1hr
this has been working well so far
a proper purpose made charger would make em last even longer (so i have been told)
but they are around 50 quid
and as i speak i have one good battery on the van and two more equally good in the shed
what do you use to check the voltage on the battery
is it a voltmeter or am i being thick ???

L.J.Thorpe

  • Posts: 2056
Re: battery charging New
« Reply #24 on: October 20, 2008, 09:06:42 pm »
squeaky
i know there seems to be differing opinions but i have found that charging daily helps the small batteries i use to perform better
i was told on the phone today that these type should never discharge to less than 20% of their capacity(whatever that actually means in laymans terms i aint a clue) so i dont know how you are supposed to go about charging up your disabilitry scooter if constantly recharging the battery knacks it ???

dai

  • Posts: 3503
Re: battery charging
« Reply #25 on: October 20, 2008, 09:10:47 pm »
I use an ordinary multi meter, about £7 from Aldi's

Bobs Window Cleaning

  • Posts: 1257
Re: battery charging
« Reply #26 on: October 20, 2008, 09:11:21 pm »
Im with Squeaky on this one (for once  :D)

Dont get caught out. I let my 110 one go flat once and it now takes up to 16 hours to fully charge, altho when fully charged, its last most of the week before I recharge it.    

And that is with a £60 intelligent charger  :-\ 



Bob
Why oh Why did he spell my name as bod & not bob on my wedding invites.

L.J.Thorpe

  • Posts: 2056
Re: battery charging
« Reply #27 on: October 20, 2008, 09:14:12 pm »
I use an ordinary multi meter, about £7 from Aldi's
cheers mate,will try one out at weekend :)

dai

  • Posts: 3503
Re: battery charging
« Reply #28 on: October 20, 2008, 09:15:55 pm »
hello dai
the ones i use are only 17 to 20 ah
i used to get about 14 or so hours of use out of one before the lamp on the vari started showing low voltage
now i recharge every night regardless of whether i did 7hrs or 1hr
this has been working well so far
a proper purpose made charger would make em last even longer (so i have been told)
but they are around 50 quid
and as i speak i have one good battery on the van and two more equally good in the shed
what do you use to check the voltage on the battery
is it a voltmeter or am i being thick ???

Yes a cheap aldi one £7.00. what you are doing now is spot on, you used to get 14 hours before it went flat, so it should be half full after a 7 hour day, charging it every night is right for that battery.

L.J.Thorpe

  • Posts: 2056
Re: battery charging
« Reply #29 on: October 20, 2008, 09:24:04 pm »
oh yeah ;D
amazing how obvious something is after someone points it out to you
14 hrs runs it flat so only use for 7  hrs or so before recharge
doh ::)
at least the ones i ruined by running em flat only cost a few quid