I recently purchased a step-up converter, the specifications state that it can boost 5 V to 30 V with varying input voltages.
The reason I purchased it was because the charger for my handheld vacuum cleaner stopped working, and the charger has very specific specifications that are hard to replace: 27 VDC 85 mA.
I'm currently using 12 VDC 1000 mA as an input and stepping it up to 27 V, my question is is this safe, and will it work correctly?
TLDR: I have a step-up voltage converter/regulator that works within 5-30 V, I have a 12 VDC 1000 mA power supply that I want to step-up (boost) to 27 VDC 85 mA and I'm wondering if it will work correctly.
PS: I have a higher current 12 VDC power supplies at 2000 mA, and one have a 19 VDC 2000 mA also. Would they be better to use instead?
PS2: This is the one I purchased: https://www.amazon.de/gp/product/B075SXMXN9/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1