BMW E90/91/92/93 as well as many BMW key fobs from the early 2000's. (there are many guides on how to do this on the internet). BMW E39 and E46 keys (Commonly Known as Diamond Keys).
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EEMB Brand LIR2016 Rechargeable Battery (With Charger optional) 3.7V 2016 Lithium Ion Battery Lithium Cell Coin Batteries
Aliexpress UK
Model: VL2020. Install the new VL2020 battery. Correct 105° tab design for compatible key fobs. BMW / Mini or Ford key not charging or holding power?. BMW Smart Key Models. BMW Diamond Key Models. BMW 1 Series (E81, E82, E87, E88) 2004–2013.
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2026New 18650 battery 3.7V 3500mAh 30Q 18650 Rechargeable battery high-current For Flashlight batteries for 18650 Battery
Aliexpress UK
ALSO KNOWN AS: ML-2020,VL2020. Panasonic Battery.
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Battery Load Tester Battery Monitor Analyzer Magnetic Portable Battery Testers for All Types of Batteries Quick Accurate Results
Aliexpress UK
Model: VL2020. Install the new VL2020 battery. BMW or Ford key not charging or holding power?. BMW Smart Key Models. BMW 1 Series (E81, E82, E87, E88) 2004–2013. BMW 3 Series (E90, E91, E92, E93) 2006–2013.
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3.7V 9900mAh New 18650 battery rechargeable Li-ion battery for Led flashlight Torch batery lithium battery
Aliexpress UK
BMW E90/91/92/93 as well as many BMW key fobs from the early 2000's. (there are many guides on how to do this on the internet). BMW E39 and E46 keys (Commonly Known as Diamond Keys). BMW had a different shape pcb leg mount put on the there batteries (which you cant buy) but this just requires a little modification.
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CR2 Lithium Ion Battery 3.7V Hot Rechargeable Powerful for Disc Brake Lock Premium Alkaline Dry Battery Upgrade Battery Cell
Aliexpress UK
ALSO KNOWN AS: VL-2020/1HFE.
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8PC PKCELL AA Battery 2200mah AA Rechargeable Battery 1.2v NI-MH Batteries and 2PC Battery Box for For Mouse Remote control Toys
Aliexpress UK
ALSO KNOWN AS: VL-2020/1VCE. BMW E90/91/92/93 as well as many BMW key fobs from the early 2000's, Mini. (there are many guides on how to do this on the internet).
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1-16pcs LiitoKala 21700 5000mAh Li-ion Battery 3.7V Discharger 35A Power battery High discharge battery E-tools battery
Aliexpress UK
BMW E39, E60 and E46 keys (Commonly Known as Diamond Keys). BMW E90/91/92/93 as well as many BMW key fobs from the early 2000's. (there are many guides on how to do this on the internet). BMW had a different shape pcb leg mount put on the there batteries (which you cant buy) but this just requires a little modification.
eBay
2Ch 4CH LCD Display Battery Capacity Tester MAh MWh Lithium Battery Digital Battery Power Detector 18650 Battery Tester Type-C
Aliexpress UK