SolarEdge Energy Bank 10 kWh Battery. UL 9540A test report compliant unit. ***Installer Certification via SE Edge Academy required for battery sales.*** ***All Battery / Storage products purchased from BayWa r.e. have a limited 30 day return policy. Returns must be in original packaging and unopened. A 15% restocking fee and return shipping charges will be deducted from amount credited for authorized returns.***