Hi all,

I was looking at replacing the fob battery the other day as a couple of times now it’s played up a couple of times when iv tried to open it.
Opened the fob up to find the battery enclosed and it seems I’m going to disturb so solder if I take it out, surely that can’t be right?
Thanks.

Lee

Yes it's a soldering job on this ,there's a big guide on the forum if you search.

site member RRSUK (think that's his username ) does a full refurb service on the keys for a reasonable price.

The battery is not your "normal" button type as it is rechargeable and charges in the car when in it`s slot in the dash. That is why it`s soldered in as it should last a good number of years before it needs replaced. It`s very important that it is replaced with another rechargeable type battery.

Yes, it is soldered at three points if memory serves me. Lots of youtube DIY vids but once you split the case you will have to glue/silicone it back together.

Last edited by MotionInc on 25th Jun 2020 2:03 am. Edited 1 time in total

Thanks for the replies chaps,
It’s probably not a problem as I thought then if it gets re charged when I’m driving it,
But now I know more about it, I’ll no what to do when the time comes to change it.
Thanks.

Lee

Shouldn’t be soldered, looks to be resistance welded.....less heat for less time.....something important on a battery. Regards

David

Lovely i6 has now gone, but not me......

Please let me know if anything in my post offends you, as I may wish to offend you again......

car would neither lock or unlock today, but it was open at the time so not a problem, called to see a mate of mine who has a garage, he had actually replaced the battery in one 2 weeks ago, he had a look at mine and spotted one of the 3 tabs of the battery that get soldered had come lose, so a blob of solder and all is well

Boxbrownie wrote:

Shouldn’t be soldered, looks to be resistance welded.....less heat for less time.....something important on a battery.

The tabs are welded, as said above.

https://uk.rs-online.com/mobile/p/button-r...s/0407899/ Procrastination, mankind's greatest labour saving device!

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CliveS wrote:

Boxbrownie wrote:

Shouldn’t be soldered, looks to be resistance welded.....less heat for less time.....something important on a battery.

No, the battery connection tabs are definitely soldered into the circuit board, I think the connection you're looking at is where the connection tab is attached to the cell, a new battery comes with tabs ready fitted.