badcommandorfilename@lemmy.world to Australia@aussie.zone · 1 year agoAustralian start-up launches new 5.12kWh home batteryonestepoffthegrid.com.auexternal-linkmessage-square13fedilinkarrow-up125arrow-down10
arrow-up125arrow-down1external-linkAustralian start-up launches new 5.12kWh home batteryonestepoffthegrid.com.aubadcommandorfilename@lemmy.world to Australia@aussie.zone · 1 year agomessage-square13fedilink
minus-square⸻ Ban DHMO 🇦🇺 ⸻@aussie.zoneMlinkfedilinkarrow-up11·edit-21 year ago5.12kW is 5.12kW no matter what the voltage is. I think you might be confusing current (amps) with power (watts). P = IV P = power I = current V = potential difference (voltage) so 5.12*10^3 W / 240V = 2133.33A —> 2.13 kAh vs 5.12*10^3 W / 48V = 10666.67A —> 10.67 kAh so yes, it will last longer at 48V but calling it 5.12kWh is not misleading
minus-squareNo1@aussie.zonelinkfedilinkarrow-up8·1 year agoYeah, thanks. I kinda figured it out that I was confusing the other batteries being rated at Ah, not kWh. But I appreciate you spending the time to set it out clearly. Have a good one.
5.12kW is 5.12kW no matter what the voltage is. I think you might be confusing current (amps) with power (watts).
P = IV
P = power
I = current
V = potential difference (voltage)
so 5.12*10^3 W / 240V = 2133.33A —> 2.13 kAh
vs
5.12*10^3 W / 48V = 10666.67A —> 10.67 kAh
so yes, it will last longer at 48V but calling it 5.12kWh is not misleading
Yeah, thanks. I kinda figured it out that I was confusing the other batteries being rated at Ah, not kWh.
But I appreciate you spending the time to set it out clearly.
Have a good one.