Hello from Sweden!
I am about to set up a small bandsaw mill in an old barn that has no electricity. The main motor is rated at 14A input with 3-phase power at 230V AC, i.e. 10kW, see image below. I was thinking about a small stack (4-5ish) of those 48V 100AH server-rack batteries which should last for a working day, since the motor won't run at full power most of the time.
Serveral questions, apart from the obvious one whether this is a good idea at all.

I am about to set up a small bandsaw mill in an old barn that has no electricity. The main motor is rated at 14A input with 3-phase power at 230V AC, i.e. 10kW, see image below. I was thinking about a small stack (4-5ish) of those 48V 100AH server-rack batteries which should last for a working day, since the motor won't run at full power most of the time.
Serveral questions, apart from the obvious one whether this is a good idea at all.
- Inverter. I seem to have a hard time finding a ~20kW inverter from 48V DC to 3-phase 230V AC, any tips would be appreciated.
- Starting current. Induction motors can draw a lot of current for the first fraction of a second. The mill has star-delta soft start, but still I am unsure if a margin of 2x is enough to not immediately trip the inverter. Any experience with running large-ish motors from batteries welcome.
- Recharging would be from existing solar or grid, a quarter mile away. First idea is to mount the rack on a pallet, build a simple roof around them, and just use my small wheel loader for the back-and-forth. Any caveats apart from potentiual drop damage?
