[patpat]

I have installed an Interstate (dealership) that lasted about 4 years I'm considering trying the Odyssey 49-950
any experience here with this model?


From the Workshop Manual

Mounted on the battery negative terminal is a battery monitoring system module. The
battery monitoring system module is integral with the battery negative cable and is
controlled by the ECM (engine control module).
...
If a new battery is fitted to the vehicle, the battery monitoring system module will need
to be reset using a Land Rover approved diagnostic system.

Anywhere to read more about how this is done with SDD?

Thanks

 

[Garage9RR]

Well it's good they have a smart charger in there. The module needs to know age of battery to properly deal with the charging and management of. You can run without I'm sure but you will reduce your battery life.

My 2008 has a 5 year old battery - seems weak. 1 hour with the FM on and I can't restart.

PS: My Audi a8L with battery manager had the original battery in it 10 years! I put a new one in and it lasts forever running anything.

 

[Mrmerlin]

NOTE dont run any of the systems in the car for more than 10 mins with the engine not running or you risk a nostart .
If your have the radio on then the engine should also be running.

NOTE when you put the accessory switch on, your also turning on all of the other computers in the truck,
as well as the power booster and cooling fans for the electronics and the HVAC system and the NAV system.
These systems will draw down a good battery to below starting voltage in less than 20 mins.

 

[patpat]

Please forgive my ignorance; what accessory switch are you referring to?
Thanks.

 

[Mrmerlin]

the key to position 1 or 2 either acc or run position

 

[armozo]

Just wanted to say that I installed the same Odyssey battery on my 2011 SC.

Be careful when you drop it in. There is a video out there that shows how to clear up space for an easier installation. FYI ECU comes out and a few harnesses have to be moved out of the way.
Lastly, in my experince, my negative clamp did not tighten hard enough... I had to shim it on.

 

[buba]

patpat, take look at this post.
https://www.fullfatrr.com/forum/topic43662.html

 

[patpat]

Thanks to all for the info;
I've ordered the Odyssey 49-950
here's also a video showing the install
https://www.youtube.com/watch?v=VM8ht0Eq6Po
My God, what a bad design...

 

[Garage9RR]

Besides the low-battery life while listening to audio (engine off) I've had some odd events (e.g slow cranking/start, lights flickering, DVD player tanking the whole main screen, etc) which point to a crapped out battery. The Noco charger has restored some life. I put it on a conventional charger for a few hours - that killed it. Conventional chargers are nasty. Anyway, I bought an H8 Everstart from Walmart, charged it with the Genius Noco and is going in tomorrow. H8 is a pretty big battery - I'll do a voltage drop test on Audio only& I bet it's good for a few hours of use.

 

[CaifanSC]

Besides the low-battery life while listening to audio (engine off) I've had some odd events (e.g slow cranking/start, lights flickering, DVD player tanking the whole main screen, etc) which point to a crapped out battery. The Noco charger has restored some life. I put it on a conventional charger for a few hours - that killed it. Conventional chargers are nasty. Anyway, I bought an H8 Everstart from Walmart, charged it with the Genius Noco and is going in tomorrow. H8 is a pretty big battery - I'll do a voltage drop test on Audio only& I bet it's good for a few hours of use.

It would be nice if you can come back to the thread later and confirm that the H8 works with no problems. I have 4 of these H8's on my bimmers (yep, two per car). One car has had the pair of batteries for about 3 years, zero issues. I always have to keep mine topped off using a Ctek charger. It would just be very convenient for me if the rangie can also accommodate the H8. You can't beat the price, availability and quality of the H8.

 

[Garage9RR]

I took out an h8 and replaced it with the new H8. Funny when I connected the ground, all the windows, sunroof opened. Starts with vigor now. I am going to connect the GAP tool and see if I need to recode the battery or anything. 2008 SC

I was at a shop and the guys were commenting about the 850's with two batteries. Holy cow electronics were consumptive back then. The Audi A8 they wanted to go 24 or 48V and should have. Would have solved a lot of supply issues, giving some breathing room there.

I also had a 93 V8Q "Verboten" on youtube if you want to see it. Drove it to the wrecker, nobody wanted it
Leaked from everywhere.

 

[CaifanSC]

I took out an h8 and replaced it with the new H8. Funny when I connected the ground, all the windows, sunroof opened. Starts with vigor now. I am going to connect the GAP tool and see if I need to recode the battery or anything. 2008 SC

I was at a shop and the guys were commenting about the 850's with two batteries. Holy cow electronics were consumptive back then. The Audi A8 they wanted to go 24 or 48V and should have. Would have solved a lot of supply issues, giving some breathing room there.

I also had a 93 V8Q "Verboten" on youtube if you want to see it. Drove it to the wrecker, nobody wanted it
Leaked from everywhere.

Small world! Yep, the electronics on the 8 series are finicky...but not too bad. It's worth it becoming familiar with them to enjoy the look of that car. It's all about the maintenance in those cars. The S8 is equally finicky but has more "catastrophic" problems like transmission and timing belts. I'm doing a 6speed manual conversion to mine.

I'll have to look up your Verboten...I own one of the 72 original 5speed V8Q's imported into the US....but you're right...it's currently down due to a fuel leak .

 

[Garage9RR]

The new battery is awesome - fires up so quickly. There is no coding or energy management on the 2008SC. The Audi's have that module and it serves to prolong battery life by improved charging cycles, etc. For example my 2004 A8L had the orig factory battery when I got it (10years old). Perhaps in 2010 that feature was added to the RR.

-------------
BMW 850's seemed to be too much car for me. The 928GTS was a stretch. I actually like driving smaller engines. Same for the S8. I have a D3 A8L and right now the MMI Is tanked. I had replaced the control module, got that recoded - but it's now something else in the loop. 92 V8Q Speed - nice. Cool cars best AWD system- better than the D3 A8 I think.

 

[Garage9RR]

Just doing an new battery in the 2010 - i could NOT remove the ECU. The back clips are somehow snagged up the the brackets attached to body.
Almost as if a special tool (like for audio decks) is required???
So it was either take the body off OR.... I removed the hood sw/bracket, pulled the wiper cowl back (popped it off 1/2 way), got the ECU wiring out of the way and was able to shoe-horn the battery out and new back in.

Old battery 12/2019 was reading low 12.3 V
New battery is at 12.75

 

[sowr]

Thanks to all for the info;
I've ordered the Odyssey 49-950
here's also a video showing the install

My God, what a bad design...

I didn't do any of that. I popped the windshield cowl up and out of the way, pulled the old battery, fitted the new one and popped the cowl back in place. Glad I didn't watch this before I did it.

 

[ventogt]

Thoroughly enjoying that you @Garage9RR replied to your last one almost 2 years ago on point and on topic. Also your list of cars you have owned [I had a D3 S8 that I loved and Dad had a 1984 928S way back when]