At 09:16 17 February 2016, Tim Newport-Peace wrote:
At 07:49 17 February 2016, krasw wrote:
Adding 1 amp switch/breaker for 200mA instrument draws 10% more powe
from
battery because breakers have internal resistance. That may or may not
be
significant. If you have 10 hrs battery capacity, you will loose on
hour.

I doubt that.

10% of 200mA is 20mA, or 0,02A.
It would then take 50 Hours to reduce the charge by 1AH.

Is that a problem?



I replaced all the circuit breakers with fuses in my ship. I reason that
circuit breakers cause a voltage drop and use unnecessary power.
I did not see any benefit in being able to reset a breaker in flight as I
wouldn't do it. If a breaker trips it is usually for good reason and
should, therefore, stay that way until you are safely on the ground.