Panasonic VL-2020/HFN Rechargeable Lithium Battery - Horizontal Mount

Cliente Amazon: La batería funciona perfectamente.peeo el vendedor anuncia 2 y solo manda una batería.precio demasiado alto para una sola bateria

Spain on Dec 17, 2023

Tobey: 2002 BMW M3 Key Fob.

United States on Nov 21, 2023

Calhas anabela: Parfait .

France on Jun 08, 2023

Jay: My 2013 Mini key fob (R56, I think) wouldn't start the car; I would just put the key in and nothing would happen. I didn't suspect the key's battery because it was locking and unlocking doors just fine, and the key is still supposed to start the car even if the battery is dead. The spare key was behaving the same way.

Well, long story short, I got a new key from the dealership for $240 (!) and it worked. Then I figured I would experiment soldering batteries into the old keys. It wasn't too difficult - used a utility knife tip to carefully cut open the key fob, pulled out the board, used a soldering iron to heat up the spots to pop off the old battery, heated up the spots to pop in the new battery, put it back in the fob. And to my surprise, it actually worked and was able to start my car. I guess a low/dead battery was interfering with starting the car after all, no idea.

I'll keep the old keys with new batteries as backups, I suppose.

United States on May 19, 2023

Mark Baker: After viewing some YouTube DIY's, I replaced the factory rechargeable battery in my 2012 Mini Cooper S key fob with this battery. Works just fine.

United States on May 07, 2023

Tim S.: **UPDATE; HAVE HAD PRODUCT FOR TWO WEEKS, STILL NOT SHOWING DELIVERED, CANNOT ASK FOR RETURN UNTIL THEY SHOW DELIVERED, WORST EXPERIANCE YET ON AMAZON** These are not the items as described or shown in picture, tracking for this item is not good, received the item two weeks ago, and it is still showing that I have not received it. Numerous attempts to contact seller, over 6 attempts, with no reply. Cannot even attempt to return item as it is not showing delivered yet, this has been my most frustrating Amazon purchase, luckily it is not a big dollar one. Don't know how to prevent this from happening in the future, when pictures and descriptions match perfectly and you end up getting something that is totally different other than battery size. I would give a negative star rating if possible.

Canada on May 20, 2021

Brigitte: Excellent.. batterie de manette de demareur bmw ...
Patfait

Canada on Feb 05, 2021

Nagulan: Battery wasn’t fit .The company take care very well on this issues.

Canada on Oct 24, 2020

paradug: Battery was physically a good replacement for the original battery (i.e., the form factor was the same). After the battery was installed, it worked as expected for about a week, then failed. When removed the battery voltage was ~0.2 volts, suggesting that the battery completely failed and was not just depleted. The voltage of the removed battery was ~2.6 volts when allowed to rest. This is what I would expect of a depleted battery. I have put the 2nd battery of the order into the fob, and it is working as expected. Its initial voltage was 3.0 volts. I will report on its life later. Right now I do not expect much.

The ordered batteries were made Indonesia under the Panasonic brand and have a date code of 9Y23. The original battery was made in Japan and is also branded Panasonic. The form factor is VL-2020/HCN.

Since my wife's key is working fine, I know that the car is functioning ok. If this 2nd battery also fails prematurely, I will try another vendor. If I continue to have failures, it could mean that my fob is damaged and I will change my review. Only time will tell, but for now I believe the battery to be the issue.

UPDATE: 9/16/20 - The...

United States on Sep 13, 2020

Lt. Frank BullittLt. Frank Bullitt: Non-Comfort Access BMW key fobs use a VL2020 rechargeable battery. Unfortunately if you want a genuine Panasonic cell, you won't find one with the tabs in the correct orientation. Since I wanted a real Panasonic cell, I decided to modify the battery. It's not hard, you just need to trim the positive tab and run a jumper to the circuit board. I modified two keys this way and both work fine.

United States on Feb 01, 2019