Sub standard products; zero aftersales service

Sell sub-standard equipment, or specify it incorrectly. Equipment works well for a while, then drops performance dramatically, in my case from 5+ hours to less than an hour (with half the load).

1. Took batteries in for testing, was assured that they were fine, and had no problems at all. Was told it was possibly a loose connection. 2. Refitted the batteries and double checked/replaced all terminal connectors. No change. 3. Got a test/recording unit, to record data. 4. Took data into Solarman to try and get advice from sales-people; a waste of time and energy. They wouldn’t even look at the data. 5. Took the whole system in (14th June); After being assured that the system would be tested same day, had to phone on daily basis and go into the shop to get any feedback, which was non-existent. 6. Five days later after phoning yet again for feed-back I get told it’s the batteries, and I need to replace them, and that I have been overloading them at 1 500W. (on a 3 000W system).

Absolutely zero in-house service/repair knowledge.

Email detailing the above, didn't get the courtesy of a reply.