Consumption Tests SBV4600

runmeshaw

All my recent tests have been performed after fully charging both SBV4600's 100% (input power between 50-100). I measured the total output with an accurate power consumption watt meter and here are my results of the 4 tests:

1st SBV4600 - 3.64kWh and 4.01kWh (1800W hair dryer)

2nd SBV4600 - 3.71kWh and 3.44kWh (_3750W electric car via 240V plug)

Are these average numbers what I should expect out of my batteries? 75% - 87% efficiency? Am I correct in calculating the efficiency by taking the total output/4.608kWh?

searsm8

87% is on par with other similar products on the market. 75% isn't great, but for 240V I would expect lower efficiency.

searsm8

Also I'm starting to think that "100%" isn't truly full, because the batteries seem to continue charging for quite awhile after reading 100%. If this is true, it would noticably mess up your efficiency calculations. I think I'll try some tests myself 🤔

runmeshaw

I was told by Zendure support team that if you let the battery charge until the input power reads 100 watts or less that that battery is considered fully charged. That's what I did in in my tests. I have also tested how much power in drawn from my AC socket to charge the SBV4600, and my most recent test showed 6.26 kWh to fully charge the battery. Seems like a pretty hefty overhead?

Micha83411

I have get 4,435kw at 1kw power drain

Micha83411

My 4600 charge After 100% a ohne houre at 600watts

theseven

Based on my preliminary tests, the inverter losses are between 10-15% + 50W. Not unheard of, but not great either.