Here are the answers to your questions.
Two-burner induction top? How much does it draw?
- We have a single burner induction top. There are 10 levels of heat, so power usage is dependent on the setting. At 60-70% the cooktop consumes about 1% of the battery power per minute, so 20 minutes of cooking reduces the battery by 20%. If it's set at simmer, the battery consumption is much lower. We also carry butane cooktop if we need a second burner.
Do you have a battery monitor? I couldn't see one, but it was pretty late by the time I finished reading the thread . . . .
- We have the Victron BMV-712 monitor. The battery monitor allows us to divert the 12 V current to the hot water heater when the SOC is between 95-100%.
No genset, correct?
- No generator for us.
3kw inverter, correct?
- It's a 2000 W inverter. It is plenty of power for any one appliance, but we have to be careful if running more than one. Ex. only run the microwave and induction cooktop if cooktop is on low power.
With 400w solar, what type of charge rates were you seeing at the deep discharge?
- This is hard to answer. If I recall correctly, when the sky is clear and under the noon sun, the panels capture ~380 W, which put about ~30 amps into the battery. So if we are at 75% of battery, it takes 2-3 hours to reach full charge. This is obviously reduced when the sun is at a lower angle.
I hope this helps.