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Low Battery Indicator - Fixed!!!

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14K views 12 replies 8 participants last post by  vireshmj  
#1 ·
I felt it would be best to make a top level post for this, as opposed to replying to this post: https://www.discoverysport.net/threads/low-battery-indicator.10354/

I want to make sure people can find the solution quickly, as opposed to digging through the entire thread. So long story short, I bought my 2018 Land Rover Discovery Sport in July of 2021. Its pretty much had this problem for as long as I've had it. Although it got progressively worse over the first couple of years of ownership. Thereafter, the indicator was basically there all the time. And what I noticed was certain things were no longer working correctly with the intune iphone app. I couldnt use the remote unlock feature. My trips were showing up days after them being driven, as opposed to right after. What this told me was the car was shutting off these functions to conserve power, based on the computer thinking the battery was low. What I also sort of realized, but didnt really have shoved in my face until after I fixed it, was the start/stop function was no longer triggering.

The car was under warranty when I bought it. I had mentioned this to the dealership. They told me the software was completely up to date on the car. And having read the above referenced post, I more or less learned to live with it. But, eventually I ran in to a youtube video from powerfulukltd here:

Now in that video, they hadnt yet fixed the problem. But later on they posted this:

I realized that the two issues were likely interrelated. I decided to invest the $70 for the replacement part. I was skeptical, but what the **** right?

Low and behold, the problem was completely resolved. I swapped it a couple of days ago. Had it have not been a fix, I certainly would have seen the low battery notice by now. But, not only has the low battery notice completely dissapeared, my intune remote is back to fully working. On top of that, after taking the car for a drive, my start stop triggered for the first time in at least a year. I think its safe to say that this part is the actual cause of the problem. And it likely deteriorates over time, which makes the problem progressively worse as time goes on.

The part is:
Part Number​
Part Name​
Price​
Quantity​
Total​
LR157912​
Battery Current Sensor​
$69.92​
1​
$69.92​

I bought mine through Richfield parts. But you may as well buy it from wherever you can source it cheapest. If you watch the second video, they go over how to replace it. But I can walk you through it here. There are two 10mm nuts. The first holds the harness to the part, and the second is the clamp to the battery terminal. I recommend cracking the torque on the nut that holds the harness to the battery first, then loosen the nut that clamps it to the terminal. After that, you can remove the back nut by hand, and slip the harness off. Then pull the part off terminal. Finally, unplug the single wire that clips on to the side. Installation is the reverse. It shouldnt take more than 5 minutes, as long as you have a 10mm box wrench handy.

Below are pictures of the removed part.

I hope that helps the next person. I know this problem is common, and there isnt much info on how to fix it.
 

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#2 ·
Thanks for posting this. My issue went away when I had the dealer install a brand new battery for $800 USD. The original battery was 5 years old so I just wanted a new one before chasing gown other sources, but it fixed it. Like yourself, suddenly the auto start/stop started kicking in.

I wonder if this sensor was replaced at that time off the official paperwork. I'll look in the morning.
 
#4 ·
I felt it would be best to make a top level post for this, as opposed to replying to this post: https://www.discoverysport.net/threads/low-battery-indicator.10354/

I want to make sure people can find the solution quickly, as opposed to digging through the entire thread. So long story short, I bought my 2018 Land Rover Discovery Sport in July of 2021. Its pretty much had this problem for as long as I've had it. Although it got progressively worse over the first couple of years of ownership. Thereafter, the indicator was basically there all the time. And what I noticed was certain things were no longer working correctly with the intune iphone app. I couldnt use the remote unlock feature. My trips were showing up days after them being driven, as opposed to right after. What this told me was the car was shutting off these functions to conserve power, based on the computer thinking the battery was low. What I also sort of realized, but didnt really have shoved in my face until after I fixed it, was the start/stop function was no longer triggering.

The car was under warranty when I bought it. I had mentioned this to the dealership. They told me the software was completely up to date on the car. And having read the above referenced post, I more or less learned to live with it. But, eventually I ran in to a youtube video from powerfulukltd here:

Now in that video, they hadnt yet fixed the problem. But later on they posted this:

I realized that the two issues were likely interrelated. I decided to invest the $70 for the replacement part. I was skeptical, but what the **** right?

Low and behold, the problem was completely resolved. I swapped it a couple of days ago. Had it have not been a fix, I certainly would have seen the low battery notice by now. But, not only has the low battery notice completely dissapeared, my intune remote is back to fully working. On top of that, after taking the car for a drive, my start stop triggered for the first time in at least a year. I think its safe to say that this part is the actual cause of the problem. And it likely deteriorates over time, which makes the problem progressively worse as time goes on.

The part is:
Part Number​
Part Name​
Price​
Quantity​
Total​
LR157912​
Battery Current Sensor​
$69.92​
1​
$69.92​

I bought mine through Richfield parts. But you may as well buy it from wherever you can source it cheapest. If you watch the second video, they go over how to replace it. But I can walk you through it here. There are two 10mm nuts. The first holds the harness to the part, and the second is the clamp to the battery terminal. I recommend cracking the torque on the nut that holds the harness to the battery first, then loosen the nut that clamps it to the terminal. After that, you can remove the back nut by hand, and slip the harness off. Then pull the part off terminal. Finally, unplug the single wire that clips on to the side. Installation is the reverse. It shouldnt take more than 5 minutes, as long as you have a 10mm box wrench handy.

Below are pictures of the removed part.

I hope that helps the next person. I know this problem is common, and there isnt much info on how to fix it.
Thanks for posting this. I will give this a try and hopefully I get the same results!!
 
#7 ·
Huth S0lo thanks so much for posting this. This sounds very promising. I have a 2017 Disco Td6 HSE Luxury. I am getting the low battery warning light all the time and when it comes on my rear hatch will not open until I start the car. I measured the voltage and it varies between 12 - 15V so seems fine. I attached a NOCO Genius5 smart charger and it is not charging because as far as the NOCO can tell the battery is fine.

So....I am going to try the LR157912 fix from above. The 2017 Dicso battery is mounted in the back and is a pain to access so I might have my local shop do it.

If it works I will come back and post success or failure.

It would be great to hear if anyone else tried this and it worked in addition to Huth S0lo.
 
#9 ·
So far it seems to have solved the problem, however I cannot be 100% sure because I have been driving longer distances for the last few weeks. My 2017 Disco Td6 will be sitting for two weeks and I return home on May 6 so I'll know on May 7 if this has fixed the problem and will update the post at that time.