Panasonic CR2 cylindrical lithium battery for high power-consuming lightweight appliances such as smoke alarms, intruder alarm systems, head lamps, cameras, 3V, 10 packs (10 batteries)

Used in a flash gun and not available over the counter but when googling the type needed everywhere else was considerably more expensive than this seller.Battery is a battery but I use the Panasonic ones for my house alarms too and no issues whatsoever.Delivered next day on time too.

I use these a lot for my business. By far the cheapest way of buying them.

Informed by my alarm engineer to always use this make for all PIR’s and door / window alarms. Last longer and most reliable.

Good batteries as expected at a good price

good works great al with long dates