Libelium provides a 6600 mA·h rechargeable battery inside Waspmote Plug & Sense!.
  • Waspmote has a control and safety circuit which makes sure the
    battery charge current is always adequate. The following image shows
    a battery discharging for a typical load and for a specific case.
Typical discharging curve for the 6600 mA·h battery
When recharging, if the battery is near 0%, it will take some time before the battery level increases
It is normal to see some battery level variations during the charging periods due to the Waspmote charging circuitry. To know the real battery level of the node, it is recommended to measure it when the node is not being recharged and also with sensors and radio modules switched off.
The on/off button can be in on or off position to charge the battery.