Specifically designed for outdoor use. The total available energy capacity of each unit can reach up to 20kWh, and up to 4 units (16 batteries, 80kWh) can be connected in parallel. Use our Calculator to estimate your system. Click for the frequently asked questions and our. Germarel Battery Cabinets are available for 24V, 48V, 110V, 125V and 220V DC battery configurations and are engineered to safely house Ni-Cd, lead-acid and lithium-ion batteries in critical power applications. Constructed from high-strength steel or stainless steel, it offers excellent waterproof, dustproof, and corrosion-resistant performance with IP55. Highjoule's Outdoor Photovoltaic Energy Cabinet and Base Station Energy Storage systems deliver reliable, weather-resistant solar power for telecom, remote sites, and microgrids.