Battery nomenclature gives different designations depending on cell size and chemistry.
The device takes two AA batteries in each of the two components (four batteries in total).
Instead of the two 9V batteries used in the LH-16, the LL-16 employs six of the more commonly available 1.5V alkaline, NiMh, NiCd, or lithium-ion AA batteries.
Some models, generally marketed as "travel razors" (or "travel shavers"), use removable rechargeable or disposable batteries, usually size AA or AAA.
The Model 100 was promoted as being able to run up to 20 hours and maintain memory up to 30 days on a set of four alkaline AA batteries.
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As founder and CEO of Moixa Energy, in September 2006 he brought to market an AA nickel metal hydride battery with a built-in Universal Serial Bus plug allowing it to be recharged without a custom charger.
A23 battery, an obscure battery type made for RF transmitters that is similar to a AA battery in size