battery stored energy is way too little, or electric power cycle engine uses way too much energy

@bspawn Thanks for the data, I thought you meant the value dislplayed, not a mismatch between that and the amount drained. With it being exactly 1k it's pretty safe to assume I have a unit conversion error (kW instead of W) somewhere

@Pedro
Thank for the reply.

"the consumption of the engines is based on real data. They aren't used on large crafts for a reason."

I am using the electric power cycle engine on a very small low mass rocket, less than 1000kg. The first stage has a single electric power cycle engine that uses 6kW (11kN ASL).
A battery needed to run it for 2 minutes is about as large and as heavy as the entire rocket without battery, and contains 1000 times as much Joules as one would expect.

(I tested the batteries with lights; 6kW runs for 1 minute on 0.1kWh (360kJ) as expected)

So the problem appears to be with electric power cycle engines.

I have made another demonstration craft:
- electric power cycle engine reports 6kW power usage
- so it should run for 1 minute on a 0.1kWh (360kJ) battery
- but it requires 100kWh (360MJ) ; that battery weighs more than the fuel required to run the engine for 1 minute and is almost as large as the fuel tank.

Except the consumption is higher than what the numbers the game says. @Pedro

@bspawn @KellyNyanbinary the density of the batteries is a bit higher than lithium ion batteries, so better than the best commercial batteries currently available, and the consumption of the engines is based on real data. They aren't used on large crafts for a reason.

Can confirm.

example craft