No, there is no battery in the panel. However, all of the systems data is stored in an EEPROM so there should be no loss of data in the event of a power failure.
A 30 day trial of selected UNIST equipment is available with pre-approval. This equipment is shipped on a guaranteed purchase order basis. Equipment may be returned within or at the end of the 30 day period. Equipment retained more than 30 days will be assumed to be accepted by the customer and payment terms begin on the 31st day.