I have this inverter around 4-5 years and I am very stisfied with it.it has good battery backup and it also have a small display where you can see the charging capacity and level of charging.the battery comes with this inverter is excide brand battedy and its a 12v battery.
The overall quality of inverter is good and I attached this with my main supply so after the light cut off I dnt need to on the inverter manually.overall good nd lo g lasting product.people should buy it and its also not too expensive you will get this around 10-11k price.