 | Home > Technical > Optima red top battery revival? |
 
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| ian series 1 Member Since: 17 Nov 2014 Location: south Posts: 3127   
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This might be just what your after?
https://www.optimabatteries.com/en-us/supp...ed-battery 80" 80" 86" 88" 90" Wanted, Forward Control Anything considered. |
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13th Jun 2017 8:45pm |
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| bear100 Member Since: 22 Mar 2010 Location: South Wales Posts: 1917  
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I bought a C Tek charger for my standard defender battery, in was going to replace it but after a discussion on this forum i bought the charger, its has a recon mode and took about 24hrs to complete
 wow was i amazed the battery has never been so good!! It works wonders, many people say it recons the battery better than when it was new and i can totally believe it, it also has a trickle charge function.
Well worth the £27 price tag 
They also sell them at Halfords 2016 Range Rover Autobiography 4.4 TDV8 2010 110 XS Utility 2.4TDCI 2010 Range Rover Sport TDV8 (gone) 2007 Discovery HSE TDV6 (gone) 1993 110 csw 200 tdi (gone) 1994 90 HT 300 tdi (gone) 1994 discovery 300tdi (gone) 90 hybrid 3.5 v8 (gone) Range rover bobtail 3.5 v8 (gone) |
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13th Jun 2017 8:51pm |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039  
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If the battery is completely flat most chargers will not start charging the battery. I think that is a safety feature.
My Ctek has also a supply function and I use that for some minutes to give it a little charge and then change over to normal charge or revive depending on the battery. I have a feeling that the revive function doesn't really work on the Optima batteries but works very well on lead acid batteries and yes that takes a long time but with sometimes amazing results. Other times however a battrey is dead and even an Ctek can bring it back to life. Roel 1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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14th Jun 2017 5:53am |
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| V8GPC Member Since: 18 Jul 2016 Location: Manchester Posts: 289
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Another vote for a Ctek charger. My 50th doesn't get used everyday; and i had the battery go flat a couple of times on me; usually when you wanted to take the 50th out. I thought maybe it was just the battery that was dead. I had charged it with a PSU type charger in the past.
Instead i decided to buy a "Ctek mxs 5.0" mainly to keep it on a trickle charge; and did the regen cycle on the first connection. Although always on trickle charge; the engine turns over much faster than before - every time i start it; and recently i took it away for the week, and left the charger at home. Never missed a beat and started every day like you'd expect. (even on the battery I though was dead.) it goes through various modes; and is often rebranded and sold with top spec sports cars as an expensive option. £60 ish but sound like those Optima batteriies would be restored - which would cost you more to replace. |
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14th Jun 2017 6:08am |
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| Paulv8 Member Since: 09 Jun 2013 Location: Milton Keynes Posts: 618 
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What I do is connect another battery to the charger as well. It fools the charger and it starts supplying a charge. V8 90...WIP
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14th Jun 2017 6:13am |
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| Balvaig Member Since: 19 Feb 2016 Location: Fife Posts: 731  
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+1 for Ctec charger.
I have a 12 year old battery still going strong, despite irregular use. |
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14th Jun 2017 7:11am |
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| 1967jester Member Since: 26 May 2013 Location: United Kingdom Posts: 147
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Another +1 for C-Tek. Using the MSX-10, great bit of kit
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14th Jun 2017 11:24am |
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| diesel_jim Member Since: 13 Oct 2008 Location: hiding Posts: 6093 
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Cool, thanks all. Think I'll be getting one soon. I take it the ctek can be used just as a trickle charger for normal lead acid batteries as well.
Looks good. Won't get one dfrom Halfrauds though... £99! |
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14th Jun 2017 11:36am |
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| Mdm Member Since: 11 Sep 2013 Location: Sunny Lancashire Posts: 1609
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Ctek or equivalent is good
You will need a min of 8 amp spec and more is better around 12 amps max if memory Serves me You need to trickle charge it 1sr and then try a recondition on it ,if it won't charge try it with a recon,it will get hot so a well vented area is a good idea in case f fumes or it going pop. |
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14th Jun 2017 12:02pm |
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