Update 2024-10-17
Learn from my mistake. I should have done my homework before purchasing EchFlow products. It has a F rating in BBB, Ecoflow Tech Ltd | Better Business Bureau® Profile
It’s selling thousands of refurbished units on eBay, considering their products are only a couple of years old. Something isn’t right.
I’ve been communicating daily with EcoFlow support for over a week, and getting nothing but excuses and runarounds. They claim three P Series printers to one Delta 2 is too much, then stop communicating when I told them same issue occurred with just one printer connected to Delta 2.
Original post
After 6 months of ownership, EcoFlow Delta 2 doesn’t reliably function as a UPS for 3D printers. During a recent 6-hour period with several brownouts, it struggled to maintain operation.
While three printers were running, the switch from AC to battery mode happened so quickly that I didn’t notice it happening ( I happened to be watching printers at that time), but two of the printers just stopped printing. Their tool heads, nozzles, and beds temperature froze, and I couldn’t resume printing with the pause button. Restarting the printers resolved the issue, but the tool heads had been on the print for too long, causing significant print defects.
One printer was not interrupted as if nothing happened, so I let the third printer continue, but it experienced a similar problem during a later brownout. My guess is the nanosecond of AC-to-battery switch sometimes causes the printer to crash, which can ruin prints. Given these issues and the price of the EcoFlow Delta 2, it’s not worth the investment. This could explain why Bambu stopped offering the EcoFlow combo.