Song Meters that accept AA batteries are designed primarily for use with alkaline batteries. Most single-use AA batteries are alkaline.
NiMH rechargeable batteries and lithium iron disulfide batteries (e.g. Energizer Ultimate Lithium) also work, but battery percentage and battery life estimations will not be accurate. See the section Types of AA Batteries in the recorder's user guide for more details:
In the spirit of reconciliation, Faunatech acknowledges the Traditional Custodians of Country throughout Australia and their connections to land, sea and community. We pay our respect to Elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.