Batteries

stemac33 · Feb 12, 2017

Hi all need some advise once again, got a platinum heavy duty 770cca 110amh battery, how long would it take to fully charge with a 15amp charger(streetwize swbcled15 from screwfix). Cant get my head around the maths involved. battery been on charge now since 3.30pm friday and still only 50% charged. Battery only fitted new in december.
Any help will be greatly received

Mark Piercy · Feb 12, 2017

hey! Usually around 8hr with a reasonable charger? Is the charger set to a trickle charge or a normal charge?

paulvasey · Feb 12, 2017

More like 48 hours from flat

stemac33 · Feb 12, 2017

Fully automatic charger. You got on/off switch and 12/24 v switch. Supposed to supply bulk charge, topping charge then trickle charge. It been on charge now for 48 1/2 hours and still only at 50% charged. All cells are bubblin and battery is warm but not hot. Is it OK to leave in on or should I turn it off

wammers · Feb 12, 2017

stemac33 said:
Fully automatic charger. You got on/off switch and 12/24 v switch. Supposed to supply bulk charge, topping charge then trickle charge. It been on charge now for 48 1/2 hours and still only at 50% charged. All cells are bubblin and battery is warm but not hot. Is it OK to leave in on or should I turn it off

I take it is showing 50% on charger. Take it off and put a volt meter across battery you should see 12.6 or more if it's just been disconnected. Should settle back to 12.6 after a short time. Think your charger read out maybe duff.

Mark Piercy · Feb 12, 2017

I agree with yoda! That Is a long time 48hrs....

Mark Piercy · Feb 12, 2017

check it again later in the day also to rule out a dead cell. Ive found a dead cell will affect a reading later on..

stemac33 · Feb 12, 2017

OK disconnected it and voltage reading is 14.3v and dropping does that mean it's charged

Mark Piercy · Feb 12, 2017

I would think so, if in doubt check it later. Should have settled to 12.6v.

stemac33 · Feb 12, 2017

Bought the charger on Friday as had a rac charger/engine starter and when I connected it the meter needle didn't move when switched on and it was only charging at 7.2v

Mark Piercy · Feb 12, 2017

th proof is in your pudding sir. If it's charged then you older charger maybe taking its retirement;-o

stemac33 · Feb 12, 2017

His wammers which temp sender is it for the glow plugs 2.5td 1996 ask this because flat battery all started with having to turn key 4/5 times to get it to start.

stemac33 · Feb 12, 2017

Right battery been disconnected since 5pm voltage gone down to 12.23v..does that mean charger wasn't telling porkies

zzr1200 · Feb 12, 2017

Platinum batteries have cell plates with calcium in them, your charger needs to have a minimum output voltage of 14.8 volts when charging and really needs to be an intelligent charger.....http://www.platinuminternational.com.......look in the menu under "Technical"......Battery Care".

stemac33 · Feb 12, 2017

When new charger connected it was putting 16.4v into it

zzr1200 · Feb 12, 2017

stemac33 said:
When new charger connected it was putting 16.4v into it

What was the batteries voltage before charging?

Mark Piercy · Feb 12, 2017

sounds like a week battery. Is there any swelling on the sides of the battery? Or possibly not charged enough...could be a dead cell or a faulty unit. Can you borrow another to try?

stemac33 · Feb 12, 2017

Battery voltage before charging was 11.98v. There is no swelling of the battery and all cells started to bubble almost together

tarphenry · Feb 12, 2017

Sounds like its FUBAR

freelance · Feb 12, 2017

Slow or violent bubbling??

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