diy water pump in aquaponics system
I put my sweet looking battery to the test today to see what would happen running the motor at half speed.
I decided to run it on speed 3 of 5 to see what kind of range I might get without any sun.
I should get around four hours of full sun in spring on the mighty River Murray on a fine day.
Or so Im reliably informed.
Much of the country on the lower half of the river is effectively desert so there should be plenty of sunny days.
As I move further upstream (to the right) the weather will get more and more overcast. The beginning of the river is in dairy cow country I think. The middle (shown here) is more like that kind of country thats good for growing a goat... maybe even two goats. A few meters either side of the river is nice (in an Australian kind of way), but this is a very, very old land, and this river has dug out a trench to run through so it could ignore the vast parched land surround it and just on with doing its own thing.
I have no idea what that being upstream will mean to my levels of sunshine at this stage.
But I wont be in any hurry, so I dont really care.
Todays test involved running the motor, and writing down some numbers every half hour. I also turned the motor off for a minute, then wrote down some more numbers.
Minutes | 1 | 30 | 60 | 90 | |
|---|---|---|---|---|---|
Amp Hours | less than 1 | 8.71 | 16.14 | 23.29 | |
Volts under load | 11.7 | 11.44 | 10.94 | 10.36 | |
Volts after 1 minute rest | 12.4 | 12.22 | 12.06 | 11.9 |
After the test I waited an hour and the voltage had bounced back to 12.31v.
I turned it on for another 10 minutes and the voltage dropped rapidly to where it was before the hour long rest.
Final numbers after the additional 10 minutes were 10.36v under load, 12v after a minute rest, and 26.54 amp hours used.
I think what all this means is perhaps my battery might be good enough. Im hoping to keep it almost full all the time with only a small amount of use for a little light.
That should put me within range of humans for 80% of my journey, but there will be a few sections where I might not see people for a few days.
To be honest, I have no idea.
To be honest, I have no idea.
I hope I dont die!
120 Things in 20 years hopes I dont die.
120 Things in 20 years hopes I dont die.
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