BMW E90/91/92/93 as well as many BMW key fobs from the early 2000's. BMW E39 and E46 keys (Commonly Known as Diamond Keys). BMW had a different shape PCB leg mount put on the their batteries (which you can't buy) but this just requires a little modification.
eBay
Equipped with a built-in smart protective PCB charging module, they safeguard against overcharging, over-discharging, overcurrent, and short circuits, ensuring safe and efficient use. Capacity:200 mAh.
eBay
Also Known As L91, LR91, LR6, MN1500, MIGNON, 15A, 15AC, 4006, 815, AA, AM3, E91, KAA, ND62S, STILO. Photo Lithium. Energizer AA Ultimate Lithium: 'The world's longest lasting AA and AAA batteries' in high-tech devices.
eBay
Panasonic Minicells Battery CR2032 Lithium. These Panasonic lithium coin-type CR2032 batteries feature high energy density for better performance. This battery fits most PC mother boards.
eBay
Genuine 14500 Lithium Battery for Garden Solar Light, Lighting, Animal Repeller upgrade for 200mAh, 250mAh, 300mAh, 350mAh, 400mAh Batteries. Nominal Capacity: 400mAh. Battery: 14500. 14500 Battery Safety Warning!
eBay
The perfect long lasting Energizer 1616 CR1616 for reliability power and performance. This coin cell battery is an ideal watch battery, but has many other uses for small appliances. Energizer CR2430 Lithium Battery 3V Coin Cell Button Batteries DL2430 5011LC.
eBay
4 x DURACELL DL/CR 2032 3V Lithium Coin Cell Battery Batteries. 🔋4 x DURACELL DL2032 / CR2032 3V Lithium Coin Cell Batteries – LONGEST EXPIRY 🔋. 📆 Supplied fromlatest batch – ensuring thelongest expiry dates available.
eBay
Power your essential devices with the Energizer CR2 Lithium Battery, a compact and robust energy source designed for optimal performance. This high-energy battery delivers long-lasting and stable output, making it perfect for a variety of electronic devices, whether for personal use or business applications. With its impressive shelf life and compatibility across multiple devices, the Energizer CR2 is the reliable choice you can trust to keep your electronics running smoothly, even in extreme conditions.
eBay