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ferncottage
Member Since: 27 Oct 2010
Location: Bideford, Devon
Posts: 105
  
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| Tayna EA1000 battery with Start Stop? |
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Just ordered this for my MY2015 D4 with Start Stop (as recommended on Tayna's ebay site), only to find the battery says unsuitable for start stop!!
Quite why they're recommending it I don't know. Anyway, does it really matter, is there much difference??
Cheers Discovery 4 - 3.0 - 2015
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 30th Jul 2019 6:14 pm |
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Washwipe
Member Since: 19 Apr 2013
Location: Bucks Oxon Herts Border
Posts: 3169
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Main difference is that it is not an AGM battery.
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| 30th Jul 2019 7:06 pm |
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ferncottage
Member Since: 27 Oct 2010
Location: Bideford, Devon
Posts: 105
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Thanks, but in reality does it make any difference? Discovery 4 - 3.0 - 2015
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| 30th Jul 2019 8:47 pm |
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ferncottage
Member Since: 27 Oct 2010
Location: Bideford, Devon
Posts: 105
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My disco has eaten 2 genuine land rover batteries so far, it isn't 4 years old yet. Are AGM batteries not designed to last more than a couple of years? Discovery 4 - 3.0 - 2015
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| 30th Jul 2019 8:49 pm |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8228
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The CCF must be set to the correct battery type and size, as AGM by default on D4 the wet cell battery will never be charged to full capacity this will lead premature failure and highly unlikely the ss will not work, the AGM batteries are far superior to wet cell.
Without looking I don’t think there is in fact a setting for a wet cell in the D4 CCF.
Only time a wet cell can be fitted is short term to get you mobile. The charging strategy of a Wet cell is entirely different to an AGM, particularly on first start up.
Check the CCF, if it has a wet cell setting and is set to that it could be the cause of your batteries failing, for maximum life use a smart charger regularly to keep the battery fully charged.
The D4 SS has a very good battery tester it is the SS itself as this will not work if the battery charge or capacity is low  It can when others can't,
It will when others won't,
It goes where others don't.
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| 31st Jul 2019 6:56 am |
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ferncottage
Member Since: 27 Oct 2010
Location: Bideford, Devon
Posts: 105
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Thanks, anyone near Hartland, Bideford, North Devon with the kit to check the CCF? Discovery 4 - 3.0 - 2015
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| 31st Jul 2019 7:17 am |
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Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1668
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My understanding is that when batteries are replaced you need a Battery Management System reset which can be done with a diagnostic tool at home (IID). Was this done when you last changed your battery?
I’m wondering whether the batteries are failing because of the type of motoring you do. Do you do mostly short journeys? Is you car left standing for days between driving? If so using a battery charger to top up the battery on a regular basis (once every couple of weeks) will help extend it’s life.
Good luck resolving
Cheers Gary
-------------------------------------------
Discovery 4 HSE 2016MY
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| 31st Jul 2019 8:20 am |
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ferncottage
Member Since: 27 Oct 2010
Location: Bideford, Devon
Posts: 105
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Sorry, I didn't reply. LR changed the previous battery 2 yrs ago, she has long runs but has been sitting for some days without a run, but I have been charging her. This time I went away for 4 weeks & it killed the battery, it was fully charged before I left.
I've now changed the battery for the proper type, it's running OK at the moment. Discovery 4 - 3.0 - 2015
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| 7th Aug 2019 10:36 pm |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8228
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You don’t say what you are charging it with! Also have you any added extras or electrical mods fitted?- these are the first thing to check as they can be drawing current when the car has “gone to sleep”, typical example is the fridge on a D3, leave it switched on and you will have a flat battery. It can when others can't,
It will when others won't,
It goes where others don't.
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| 8th Aug 2019 7:27 am |
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ferncottage
Member Since: 27 Oct 2010
Location: Bideford, Devon
Posts: 105
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No extras fitted that should be using power, I charge using a standard old fashioned type car battery charger, sometimes charging both batteries. Discovery 4 - 3.0 - 2015
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| 8th Aug 2019 7:45 am |
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NJSS
Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10806
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From the article referred to in philm's helpful post:-
Quote:An AGM battery is designed to be charged slow and low, and overcharging it can kill the battery itself. So, a normal battery charger can’t be used to charge an absorbent glass mat battery.
Most of the AGM battery chargers are equipped with microprocessors that collect information from the power cell to see its current charge status and to adjust the voltage and current accordingly.
However, there some battery chargers today designed to charge both lead-acid and AGM types of battery by having charging mode selection feature.
I use a number of CETEK chargers, but don't stint & buy one of the smaller ones; you will regret it. I have three as I needed two, but the first which I bought was not up to the job.
Despite this thread:-
https://www.disco3.co.uk/forum/ctek-charge...p;start=15 I'm still using my CETEKs !
I do think that the CETEK Battery Sense might be worth considering although I haven't bought one:-
https://www.ctek.com/products/vehicle/ctx-battery-sense
but read the reviews first some love it, some hate it:-
https://www.amazon.co.uk/CTEK-40-149-Batte...B0188TGF6W
NJSS Am I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
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| 8th Aug 2019 9:30 am |
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M3DPO
Member Since: 22 Sep 2010
Location: Notts.
Posts: 8228
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The maximum voltage a AGM battery can take is 13.8volts old conventional chargers can charge at anything up to 16volts when on a fast charge. This is why the CCF has to be set to the correct battery type and size, also charging with a conventional charger whilst the battery is still on the car can do endless damage to modules that are not designed to operate at such high voltage. It can when others can't,
It will when others won't,
It goes where others don't.
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| 8th Aug 2019 10:45 am |
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ferncottage
Member Since: 27 Oct 2010
Location: Bideford, Devon
Posts: 105
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Thanks, I'll take a look at the chargers. I never remove the battery/terminals to charge, if the alternator can charge it without damage, so can an ordinary charger in my opinion. But I always place the clips on first, then turn on so as not to create a surge/spark.
This replacement AGM battery from Tayna I'm a bit suspicious of. It has obviously been fitted before as the terminals were dirty, it was also down on charge. I charged it for 12 hours, but it was still putting 2A into it... Is this normal for these batteries does anyone know?
Cheers Discovery 4 - 3.0 - 2015
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| 8th Aug 2019 11:32 am |
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