Energizer AA

Energizer is one of the most trusted names in the world of batteries, and AAs are the most common battery used in consumer electronics. Put them together and you've got an incredibly reliable, useful battery. Honeywell is no exception, employing the use of the AA in many of its more popular products, such as the 5800PIR-OD and the 5898.

While most battery operated alarm equipment needs just one (sometimes two) batteries, almost all devices that require a AA need four of them. If you need to check on how many batteries your device requires, consult Honeywell's battery replacement guide.