The Oyster LoRaWAN device will run on 1.5V AA batteries. The maximum input voltage is 5.5V. The battery holder places the batteries in series, so the cell voltages add.
- LTC 3.7V batteries cannot be used. This will result in a total voltage that will damage the product.
- 1.5V AA Lithium Iron Disulphide batteries are recommended. An example is Energizer Ultimate AA. These have a wide temperate range and good reliability.
- 1.5V AA Alkaline batteries will also work. The device will operate down to around 3.0V, which is 1.0V per cell, and flat. Alkaline batteries are less reliable and have a narrower temperature range.
- This is different to the Oyster Cellular - that device has a minimum voltage of 3.8V to run the modem. Alkaline batteries are NOT recommended in that product.