Make 110V / 220V to 24V UPS without Inverter DIY

In this video i will be using some old 12V 7Ah batteries to make a powerful 24V UPS without Inverter DIY. I will also be using a 110V / 220V to 24V SMPS power supply upto 20 amps. This UPS is very useful for 3D printer during power outage.
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#110v #220v #24v #ups #inverter #diy #mrelectron