I didn't see anything covering the topic in the last few years so I'm starting a new thread. What's your favorite replacement battery for the LR3? Mine is toast in my 2008 V8 SE. Of course it croaked 10 months after the end of the warranty period. MTP 49/H8
LR3 battery recommendations?
- Thread starter Tugela
- Start date
Interesting, this is news to me. What about the marketing hype that AGM batteries perform better in higher vibration environments, off road, etc.? I take mine off road a fair bit so (in theory) this sounds like an advantage. The battery that came with my LR3 is an Interstate and died at 40 months. Not an impressive lifespan, but not awful. I don't have any auxiliary electronics on the vehicle and the only main power draw is for my AC adapter to charge a couple 5000mAh batteries when on road trips (or overlanding, as the cool kids like to call it).
Update: I checked the manufacturer's website and even though my battery is past the free replacement period, it looks like I'm eligible to get a 45% discount on a replacement. So I'd be looking at about $121 for a new Interstate flooded battery vs. $278 for a NAPA AGM (price of both includes tax). A difference of $150 is a meaningful amount, but I'm willing to pay more if it's a good value.
Do that. 40 months life on a battery is on the shitty side. I usually start thinking about replacing my wife’s battery after 5 years. I don’t replace mine till it won’t start my vehicle.
The cut off for Land Rovers getting AGM batteries seems to be if it’s got ECO Stop. So like 2014 or so.
The real downside of an AGM battery is the way they get destroyed when something drains them to under 4 volts. They usually won’t come back from that. Flooded batteries seem to be much more forgiving like that.
The cut off for Land Rovers getting AGM batteries seems to be if it’s got ECO Stop. So like 2014 or so.
The real downside of an AGM battery is the way they get destroyed when something drains them to under 4 volts. They usually won’t come back from that. Flooded batteries seem to be much more forgiving like that.
Can you clarify? Do you mean that AGM batteries are common on model years 2014 and newer?
What are the chances of this and what are the common culprits? I don't have any electric accessories (winch, lights, subwoofer, etc.). I don't leave the lights on/stereo playing with the engine off. Are the routine sensor checks and whatever else the LR3 does on its own while the ignition is off enough draw to drain a battery that much? Or is the problem when you have an excess power draw from an electrical issue the thing that kills the battery?
Yes pretty much all Rovers and Jags have AGM batteries after 2014. As far as what are the chances of something killing the battery? One time you lend the car to someone who doesn’t really understand the auto lights, then your battery is toast.
No jumpstarting it and going on with your life. You now would need a new battery.
No jumpstarting it and going on with your life. You now would need a new battery.
Thanks for elaborating. I make it a principle never to lend my car to people I don't trust to treat it right. Now that I think about it, the only person who has driven it whose name is not on the title is my dad. Even though it's a far cry from the Series 3 and Defenders he used to drive during his years in southern Africa, he managed just fine.
If I may attempt a summary: AGM isn't a bad option, but it has limitations that a flooded battery doesn't. Assuming the warranty discount applies, replace the Interstate with like-for-like and spend the savings on the next trip (be that to the mountains or to the shop).
If I may attempt a summary: AGM isn't a bad option, but it has limitations that a flooded battery doesn't. Assuming the warranty discount applies, replace the Interstate with like-for-like and spend the savings on the next trip (be that to the mountains or to the shop).
For whatever reason, when I see AGM batteries installed where a flooded battery should be it has not ended well. But I can see your dead set on a AGM battery. I personally would never do it.
I'm not set on anything. I'm trying to learn in order to make an informed decision. My last post shows that I'm leaning towards replacing my flooded battery with another one:
It’s just the extra cost and that extreme weakness. So I would put one in a vehicle that already has one because I would be concerned about the battery monitoring system might not like it. But for the extra money and how they just don’t come back from being discharged. It’s a no brainer for me.
I had an interstate H8 AGM in my D90 for probably 6 or so years and it failed after letting it sit for 6-9 months eventually being completely discharged. I put another AGM battery in it before I sold it .
Damn, 40 to 60 months on a battery? You guys are spoiled. Out here in AZ 2 years is considered good. On the positive side, you’re always under some sort of warranty so you just keep on rolling with a warranty discount.
I killed the battery in my LR4 2 weeks ago running a 12-volt groundwater sampling pump off the battery and killed it last weekend camping. Thank god for the little lithium ion jump starter. Got in my Porsche the other day to run to lunch and….dead battery. Of course I had it locked so now the front and rear trunks are locked and I have to remove an interior panel to get to the front latch cable so I can pop the hood and access the battery for jumping. No AGM batteries for me.
I killed the battery in my LR4 2 weeks ago running a 12-volt groundwater sampling pump off the battery and killed it last weekend camping. Thank god for the little lithium ion jump starter. Got in my Porsche the other day to run to lunch and….dead battery. Of course I had it locked so now the front and rear trunks are locked and I have to remove an interior panel to get to the front latch cable so I can pop the hood and access the battery for jumping. No AGM batteries for me.
LOL....was thinking about this thread the other day. Kids went to the in-laws on Saturday, packed up the truck, the wife and I jumped in to go on an overnight adventure up in the mountains and....dead battery! I had the rear tailgate open for about an hour while packing and side doors opened & closed multiple times. Very surprised that the battery drained. Same as what happened camping a few weeks ago - no real drain on battery except doors opening & closing for a few hours while camping and rear tailgate left up.
Quick jumped it with the lithium battery jumper but then of course the wife lost all confidence and wanted to go buy a new battery. I said no and luckily the truck has started fine since. I think I handicapped the battery when I ran it down to nothing with the groundwater pump. May have to go buy a new battery. Just checked my maintenance log and this is still the Interstate battery that was in it when I bought it in August 2022. I could have sworn it had a newer battery but I guess I was wrong. So it's been over 2 years, now living on borrowed time here in AZ.
Quick jumped it with the lithium battery jumper but then of course the wife lost all confidence and wanted to go buy a new battery. I said no and luckily the truck has started fine since. I think I handicapped the battery when I ran it down to nothing with the groundwater pump. May have to go buy a new battery. Just checked my maintenance log and this is still the Interstate battery that was in it when I bought it in August 2022. I could have sworn it had a newer battery but I guess I was wrong. So it's been over 2 years, now living on borrowed time here in AZ.
I think that’s the slow death that was referred to earlier. My old AGM battery did the same thing, easily susceptible to going dead but would perform fine under normal conditions. Eventually kicked the bucket and put in a new Interstate AGM from Costco
Heading to pick up a new battery from Autozone. I had two drilling jobs this week, working out of the back of the truck with the tailgate open and had to jump both days. Then last night I'm cleaning out the back of the truck and had the tailgate open for about a half hour and dead battery again. Now it's barely starting on it's own. Had to jump this morning before one kid's soccer game and nearly had to jump after the second kid's game.
I'm curious if anyone knows if some sort of sensor or electrical sub-system is running when the tailgate is open on these LR4s. I'll leave the tailgate open for hours when camping (sometimes overnight) and I've never had a problem. Now that my battery is elderly, it's the tailgate that seems to kill it every time. Thinking about removing the positive lead or installing a battery cutoff switch so I can just completely unplug the truck while camping or working.
I also had an electrical system freak-out Tuesday after I jumped it on my drilling job - suspension fault and limited to 30 MPH with a check engine light too. Shut her down and restarted and it cleared. Then last night after I jumped it I had the same suspension fault and it dropped to the bumpstops on the way to dinner with my family. Another off/on cycle cleared it. I figure it's just electrical mayhem from the repeated dead battery.
I'm curious if anyone knows if some sort of sensor or electrical sub-system is running when the tailgate is open on these LR4s. I'll leave the tailgate open for hours when camping (sometimes overnight) and I've never had a problem. Now that my battery is elderly, it's the tailgate that seems to kill it every time. Thinking about removing the positive lead or installing a battery cutoff switch so I can just completely unplug the truck while camping or working.
I also had an electrical system freak-out Tuesday after I jumped it on my drilling job - suspension fault and limited to 30 MPH with a check engine light too. Shut her down and restarted and it cleared. Then last night after I jumped it I had the same suspension fault and it dropped to the bumpstops on the way to dinner with my family. Another off/on cycle cleared it. I figure it's just electrical mayhem from the repeated dead battery.
Yeah all 3 rows of interior lights stay on for about 5 minutes every damn time you open or close a door or you can shut them all off by hitting the center light button in the front console. I installed all LED bulbs in all interior lights. I also have the DVD screens in the front headrests that display the Land Rover logo for a few minutes. But those should be the only things using power.