The solar panel enables the BATLOGGER C/C2 to make almost endless bat recordings. The 20 W photovoltaic panel provides enough energy, even with limited sun exposure or in difficult conditions. On a BATLOGGER C with 2 batteries, you only need half a day with sunshine in 10 days to recharge the batteries. With the BATLOGGER C2, even half a day of sunshine in 15 days can be sufficient.
