ACDC Con artists with ******* Chinese products

Bought an inverter from them when we had all that load shedding (Fourways branch) at the beginning of the year. It worked once, after which I was back and forth trying to get issue resolved. Eventually they took the inverter back and after 6 weeks finally replaced the battery which they admitted was at fault. I tested product and it worked fine. A month later I allowed batter to run down and it worked fine (4 hours off power) , yesterday I tried the same, inverter ran for half an hour, I charged again overnight today it ran for 20 minutes. These people supply ******* products and then protect them selves with ridiculous return policies.