Thanks.
You write NTBC tested the big brother, but the link goes only to a presentation.
I bought one of these several months ago.
One important use was the UPS feature since I needed to supply emergency power to a lift chair for a handicapped person.
However there is a major problem with my unit.
When plugged into AC the UPS constantly shuts any device attached to it on and off. Even a lamp. Every minute or so.
In addition anything plugged into the same circuit in the room goes haywire.
THE REAL PROBLEM IS THAT BLUETTI DOES NOT ANSWER THE PHONES FOR SUPPORT.
EVERY MESSAGES ENDS WITH "MAILBOX FULL GOODBYE"
I have tried every phone number for them I know of.
Beware of Bluetti unless they solve this. I have been trying for months to reach them.
- Great design - but that is where the good news ends. Sub-par quality control & non-existent customer service suggest you should keep on walking...