Just to reinforce Jasperoony's post a few days ago, (in post titled "First Problem with my 2011"):

I've also heard from a senior LR insider that all 2011MY FFRR's will be recalled for the software timing mods and a new AGM battery.
The issues over supply of these batteries though are very real - all new vehicles in production are now being fitted with the AGM battery (AGM = absorbent glass mat, not strictly a gel battery). This means the supply to dealerships for replacement in those existing vehicles with ordinary lead acid batteries is poor at present so it seems they're waiting until stocks are higher before going public.

Don't ask me any more than that - cos that's all I know. Worth badgering the dealer if you have a 2011 and the battery seems sluggish..

Muddy Range Rover Vogue SE SDV8 - L405 (now sadly sold)
BMW i3 (fantastic little runabout)
Kioti NX6010 Tractor
Yamaha Big Bear ATV
And a whole heap of other kit...

Why are we hearing this news here ? I would have thought LR should have communicated this directly to customers who have purchased one of the effected vehicles ? I've had an e-mail from James at Lookers letting me know but I'd like to hear this directly from LR first not on a forum (sorry Muddy, Rant over) 2021 P400 Silicon Silver AB
Gone 2011 Bournville TDV8 VSE
Gone 2008 Black Canadian HSE LUX

Is this only for the UK? Or a worldwide recall?
My car is in production now (or should be soon). I hope the battery issue will be fixed  Santorini Black RR Vogue 4.4 TDV8

jez000 wrote:

Why are we hearing this news here ? I would have thought LR should have communicated this directly to customers who have purchased one of the effected vehicles ? I've had an e-mail from James at Lookers letting me know but I'd like to hear this directly from LR first not on a forum (sorry Muddy, Rant over)

Sorry Muddy, I wasn't having a go at you, i'm just disappointed not to have had any communication from LR

AMV - if your vehicle hasn't been built you should be alright as the rumor appears to indicate vehicles on the production line will be corrected first. 2021 P400 Silicon Silver AB
Gone 2011 Bournville TDV8 VSE
Gone 2008 Black Canadian HSE LUX

jez000 wrote:

AMV - if your vehicle hasn't been built you should be alright as the rumor appears to indicate vehicles on the production line will be corrected first.

I really hope so  Santorini Black RR Vogue 4.4 TDV8

some one's head will roll for this fiasco

Ratan Tata is known to be very unforgiving towards incompetence (have a friend whose family in Mumbai know him)

its not the cost but the recall is bad for the brand image!

nick h wrote:

some one's head will roll for this fiasco

Ratan Tata is known to be very unforgiving towards incompetence (have a friend whose family in Mumbai know him)

its not the cost but the recall is bad for the brand image!

I have to agree with Jez, the overly protective attitude of LR just customers off.

it took two weeks for my dealer to admit that there was a problem, despite my telling them that i had held the printed document in my hand that announced the required replacement. Gerry
____________________________________________
Arrived>Santorini/Jet FFRR MY11 TDV8
Gone>Stornaway/Ebony MY09 RRS HST TDV8
Gone>Java black/Ebony MY07 RRS HSE TDV6

p-trax wrote:

I have to agree with Jez, the overly protective attitude of LR just customers off.

it took two weeks for my dealer to admit that there was a problem, despite my telling them that i had held the printed document in my hand that announced the required replacement.

Trust me, they are better than some. BMW still won't admit a fault in their CBS system that causes brake pads to squeal when they have about 14,000 miles to go. Take the sensor off, the squeal goes. Had 4 cars with the same system, same problem at same interval. System still in production... Sensors off, warranty void.

p-trax wrote:

I have to agree with Jez, the overly protective attitude of LR just customers off.

it took two weeks for my dealer to admit that there was a problem, despite my telling them that i had held the printed document in my hand that announced the required replacement.

No Jez, i don't.

i was however given the two page document to read a couple of weeks back, but not permitted to photograph. Gerry
____________________________________________
Arrived>Santorini/Jet FFRR MY11 TDV8
Gone>Stornaway/Ebony MY09 RRS HST TDV8
Gone>Java black/Ebony MY07 RRS HSE TDV6

This is interesting as AGM batteries don't give you many benefits over a "Flooded Lead Acid" battery.

They operate better in super low temperatures, and work upside down, but that's about it. As a starting battery they can be a bit dodgey as they like to be charged fully - used - charged again - used. They dislike being constantly charged, and overcharging will kill them completely.
They suffer from deep discharges to an even greater extent than FLA batteries, so this really is a bizarre choice.
Also to get the same power from an AGM as from a FLA then you will generally pay double the amount.

If the battery is going flat for some reason, fitting an AGM will not solve the problem. An AGM will not give MORE power than an FLA. It would be more to the point if they would fit a reserve starting battery to ensure that you could always start the car. 

johnson1 wrote:

p-trax wrote:

I have to agree with Jez, the overly protective attitude of LR just customers off.

it took two weeks for my dealer to admit that there was a problem, despite my telling them that i had held the printed document in my hand that announced the required replacement.

Trust me, they are better than some. BMW still won't admit a fault in their CBS system that causes brake pads to squeal when they have about 14,000 miles to go. Take the sensor off, the squeal goes. Had 4 cars with the same system, same problem at same interval. System still in production... Sensors off, warranty void.

mines been doing this but then it is a bmw version....and to add my old e60 did this as well plus it had battery issues "RANGEISM WILL NOT BE TOLERATED"
www.futuresecurityservices.co.uk
Pretlove says , '' I want my car back "

This is taken from a Wiki page on AGM batteries:

Advantages
All AGM batteries have enhancements over flooded lead acid batteries:
Purer lead in the plates, as each plate no longer needs to support its own weight, due to the sandwich construction with AGM matting. Traditional cells must support their own weight in the bath of acid.
Fluid retention - un-spillable
High specific power or power density, holding roughly 1.5x the AH capacity of flooded batteries due to purer lead[citation needed]
Low internal resistance allowing them to be charged and discharged quite rapidly
Water conservation - never requires addition of water
Acid encapsulation in the matting
Operation well below 0°F or -18 °C.
Availability of UL, DOT, CE, Coast Guard, and Mil-Spec approved types
Vibration resistance due to the sandwich construction.
[edit]


Disadvantages

Cost. AGM automobile batteries for example, are typically about twice the price of flooded-cell batteries in a given BCI size group.
AGM batteries have up to a 10 year lifespan, but must be sized to discharge less deeply than the traditional flooded batteries. For an AGM battery, the depth of discharge for optimal performance is 50% but flooded batteries can be rated up to 80% depth of discharge. 2021 P400 Silicon Silver AB
Gone 2011 Bournville TDV8 VSE
Gone 2008 Black Canadian HSE LUX