What is a 9V 6LR61?

Details. Duracell 9 Volt / 6LR61 Alkaline Battery. Higher capacity and longer life, 9 Volt Alkaline batteries are commonly used in: clocks, smoke alarms, toys, cameras, and many other electronic devices.

How long does an Energizer 9V battery last?

Energizer MAX® AA, AAA, C, and D cells last up to 10 years in storage, while our 9V lasts up to 5 years in storage. Energizer® EcoAdvanced® AA and AAA last up to 12 years in storage. Energizer® Ultimate Lithium™ AA and AAA last up to 20 years in storage, while our 9V lasts up to 10 years in storage.

Is a 9V battery really 9V?

An alkaline 9V is really 9 volts, but a rechargeable “9V” battery is initially 9.6V, 8.4V, 7.4V, or 7.2V, depending on the model in question.

Is there a difference between 9V and 9V2?

Q: How doe a 9V2 battery different from a 9V battery? I think it just means you are buying two batteries, no difference.

When should a 9V battery be replaced?

Testing and Changing Your Smoke Alarm Battery It is recommended you test your alarms at least once a month to ensure they are working properly. If your smoke alarms are powered by a nine-volt battery, the battery should be replaced every 6 months, while the detector itself should be replaced once every 10 years.

What voltage is too low for a 9V battery?

Watch out for batteries with a voltage rated at less than 8.4 volts. For example, some NiMH rechargeable 9 V-size batteries are only 7.2 volts.