The UPS 3700 VA is a pure sine wave inverter with boost charger up to 30A charging current, installed over a battery bank with 24 VDC and around 600 AH capacity.

The UPS 3700 comes with a display that shows the current charge state of the battery bank, and consumption/charging current.

This UPS system has a continuous power of 2000W (10 Amps ), which is enough to run a full house of big size for around 12 hours (around 3A continuous load, as ;TV 40” ,refrigerator,4 Lamps 85W)  it is the best solution for long electricity outage for microwave use and/or washing machine for a long period of time. The battery bank can feed a 10 Amps continuous load for 6 hours.  With this battery bank it is recommended to also have a solar panel array which will help charge the battery bank faster and keep your system ready for a longer outage. The UPS 3700 can handle a load up to 2800 W (13A) for 30 min so the only justification for a bigger system is having a higher continuous load:  more than 10 A continuously.