The Song Meter Mini Battery Lid holds up to six rechargable 18650 batteries (not included), extending the deployment time of the Song Meter Mini to 1100 hours, and the Song Meter Mini Bat to 125 ten-hour nights.
The battery lid is fully waterproof and clips onto the front of Song Meter Mini or Mini Bat. It takes batteries in pairs and will function with two, four, or six batteries (note that the battery life listed above is based upon using six batteries).
Please ensure that you read the included safety and installation instructions before use and deployment.
The lid adds 24mm to the usual depth of a Song Meter Mini recorder