GP High Voltage 27A (MPN 17736) is a battery for powering compatible electronic devices. The listing specifies a 12 V rating and a pack of 5 batteries, making this a multipack for replacing batteries in devices that use this type.
The battery diameter is listed as 8 mm. The stated applications include car remote controls, keyless entry systems, photo equipment and other electronic devices. The product listing identifies these uses without naming particular device models.