I'm looking at the EG4 3000 EVH all in one and looking for a run time chart to estimate the run time at different loads (300 watts, 500 watts, 1000 watts, 1500 watts, 2000 watts) and 1, 2, or 3 100Ah batteries.
Notifications
Clear all
Inverters
3
Posts
2
Users
0
Reactions
186
Views
November 29, 2024 8:54 pm
2 Replies
November 29, 2024 9:21 pm
I found a formula online. With efficiency at 95% is this correct?
Runtime (hours) = (Battery capacity (Ah) x Battery voltage (V) x Efficiency) / Load power (W)
Battery Ah 100.0
Battery V 48.0
Invert Efficiency 0.950
Power (w) 4560.0
Load (w) Runtime (H:M)
300 15:11
500 09:06
1000 04:33
1500 03:02
2000 02:16
This does not include the overhead of the inverter but not sure how much of an impact that adds?
November 29, 2024 9:47 pm
That looks about right. According to the spec sheet the battery to invert efficiency is 94% and the non-standby idle consumption is approx. 50W. Depending on how tight you are trying to calculate it could make a bit of difference.
Also keep in mind that due to variations in batteries, wire lengths etc. your specific mileage may vary. Personally, I like to leave at least 5% overhead when looking at discharge and charge times.
Here is a link to the spec sheet EG4-3000EHV-48-Spec-Sheet.pdf
JB
