• Compact and robust design with advanced EV technology: Adopts CTC (Cell-to-Chassis) structure developed as EV technology. By attaching the battery cell directly to the frame (chassis) of the main unit, it improves space efficiency, making the main unit small and lightweight. It also contributes to improved vibration and shock resistance, 0.2m drop resistance and 100kg surface load • 【Instantly switches in less than 0.01 seconds, safe for sudden power outages】Automatically switching power function in less than 0.01 seconds during power outages, instantly switches the power of connected devices from commercial power supply to DELTA 3 Max. Protect your refrigerator, computer, 3D printer, and other appliances that suddenly stop functioning • (Smart functions for disaster preparedness and optimized power usage) StormGuard function: The StormGuard function: Referring to weather forecasts, and send notifications from the app if bad weather is expected within 12 hours. At the same time the DELTA 3 Max will automatically control the first charge to ensure power in case of power outages. TOU mode: efficiently manages charges and discharges based on peak time of power usage / off peak time By utilizing a time-honored cost to save electricity bills. Smart Control & Monitoring: In addition to controlling power and output, you can also monitor battery status, port usage, and charge and discharge status with just one smartphone • Fast charging of main unit in as little as 108 minutes: Connect it to your home outlet, and it can be charged from 0% to 100% in about 108 minutes. You can charge it well even in a short amount of time such as prep time before going out. It also combines fast charging with solar panels and EcoFlow 500W Alternator Charger to support stress-free charging regardless of location or weather conditions • 5.9 lbs (2.7 kg) Lightweight & Easy to Hold Handle Design: While maintaining a large capacity and high output, the EcoFlow Delta 2 Max has been reduced by approximately 6.0 lbs (2.7 kg). Portable and comfortable for both indoor and outdoor use. In addition, the heat dissipation fan is installed on the front and back of the main unit, and the carrying handle makes it compact and compact. Space-efficient main body design not only stores neatly in the gap space, but also improves silence and makes it easier to use