Hello DIY Solar Power Forum Members.
I am currently building a mobile power cart for my off-grid workshop. I did some inrush current startup tests using the peak function on my multimeter (klein Tools CL800). The largest inrush current came from my table saw (2 hp running) 55 amps. The motor code says it should be 59 amps so my test is close but a little unconservative. I expect the MM to be unconservative as from what I have read the peak function is not a true inrush reading like on the fluke MMs. I read the inrush is already dissipating by time the multimeter takes a reading using the peak function. I purchased a 24V 6k/18k sigineer inverter. I would like to get a Lithium iron phosphate battery but I am concerned about the BMS tripping. Will the batteries see the same inrush the inverter sees, 59 amps * 120VAC / 24 VDC = 295 amps? Or, will the inverter act as a sort of current limiter and pull much less amps? Because of this I may go with lead acid as my golf cart routinely pulls 350 amps going up hills. Or build a battery pack with a BMS and solenoid relay?
I am currently building a mobile power cart for my off-grid workshop. I did some inrush current startup tests using the peak function on my multimeter (klein Tools CL800). The largest inrush current came from my table saw (2 hp running) 55 amps. The motor code says it should be 59 amps so my test is close but a little unconservative. I expect the MM to be unconservative as from what I have read the peak function is not a true inrush reading like on the fluke MMs. I read the inrush is already dissipating by time the multimeter takes a reading using the peak function. I purchased a 24V 6k/18k sigineer inverter. I would like to get a Lithium iron phosphate battery but I am concerned about the BMS tripping. Will the batteries see the same inrush the inverter sees, 59 amps * 120VAC / 24 VDC = 295 amps? Or, will the inverter act as a sort of current limiter and pull much less amps? Because of this I may go with lead acid as my golf cart routinely pulls 350 amps going up hills. Or build a battery pack with a BMS and solenoid relay?