My fail for the week.

[Theuglycamel]

Ok so I've never had a servo tester, and broke down and bought a $6 job from ebay. Fooled with it for a few hours then put it away until I was ready to center the servos for my Golden Goose build. What I didn't pay attention to was the orientation of the balance plug I was using (yeah I know) to power the tester. And of course, I had both of my flap servos plugged in... The split second that it took me to realize my half metal digital Dynam reversed servos don't have an internal LED was enough time to smoke the motors (with the smoked clear casings they actually did light up like a lantern).
So the brilliant man than I am, figured out I had cross wired the tester. I took off my servos, plugged the battery back in (correctly)... and decided I should test those two illuminating servos. Of course the second I plugged them in, the tester sizzled, LEDs went out, and nothing... SO now I've got two dead flap servos (thank goodness I had another matching reversed pair) and a smoked servo tester.
Long story short, don't use 3 s balance plugs to power your tester if you're a dip-wad like myself. I've dedicated an old 300 mah drone 1s which i put a Futaba J end on just to be sure I don't burn up my next one. I'm more disappointed in the servos than I was the tester... this was going to be their maiden!

 

[Wildthing]

I use one of my old flunky esc's to power my tester

 

[Ketchup]

I just use a 1s lipo with a jst connector to power my servo tester

 

[Theuglycamel]

That's exactly what I should have done! Wildthing, you've done some durn fine looking birds there. I love that Thundercat and the Sturmovik! I've got a soft spot for warbirds myself...

 

[mayan]

That happened to me too, just realized I have to pay more attention when working with the servo tester.

 

[Theuglycamel]

Seems like I'm always paying for something, just never with enough attention lol

 

[Wildthing]

That's exactly what I should have done! Wildthing, you've done some durn fine looking birds there. I love that Thundercat and the Sturmovik! I've got a soft spot for warbirds myself...

Thanks

 

[mayan]

Seems like I'm always paying for something, just never with enough attention lol

What you can do like some have said is connect 4 AA/AAA batteries using a jst connector and you shouldn't have any more mistakes .

 

[makattack]

I was a big fan of the $1 AA serial cell holder with a JST connector, but that was before I bought components to make a DIY current limiting power supply for my bench projects. Might be excessive, but I love the flexibility and not having to scrounge around for batteries.

 

[Bricks]

Or do as I do plug in the servo tester battery BEFORE any of my servos, connecting backwards to the servo tester will not hurt it just tell if your battery is connected properly.

 

[makattack]

Just saw this posted on my twitter feed and had to come back here in case anyone wanted ideas for a battery pack:

https://twitter.com/i/web/status/1118863300320800770

This one is a 3D printed case for a 3 pack, but got me thinking that instead of buying one of those $1 battery cases, you could also make your own, and indeed there is already a model for one such:

https://www.thingiverse.com/thing:456900

I used one of these (but had to make my own by adding a connector -- wish I had found pre-made ones, but really don't need 5 of them):
https://www.amazon.com/dp/B01N1WDDQ4/?tag=lstir-20

 

[stereodreieck86]

I lost ASW28 and 2Mobius yesterday because I lost sight of it.

Its lost somewhere between my location and the village Bassenheim (in Germany). Since the area is pretty big and difficult to search I couldnt find it. Maybe today.

 

[Theuglycamel]

That's too awesome Makattack!

 

[Theuglycamel]

I'll keep a look out for her, stereodreieck86. She looks like she could slope all the way to Oklahoma!

 

[Kendalf]

@CarolineTyler had mentioned in one of her other posts about using a USB charger and solder on the right connector. Inspired by that, I'm planning on using a cheap portable USB battery pack that I got for free from some exhibition; I still need to cut and solder the connector to a USB cable to fit the servo tester.

 

[stereodreieck86]

I'll keep a look out for her, stereodreieck86. She looks like she could slope all the way to Oklahoma!

I dont think so XD. I wanted to point with this picture that she could be anywhere in this area. Impossible to find my big beauty, maybe by coincidence.

 

[basslord1124]

Ouch! I had kinda wanted to try it that way my tester but I could almost see myself doing something like that too.

I have one of these off an old plane that's being redone to use on my servo tester:

https://www.headsuphobby.com/5-Amp-Universal-Battery-Elimination-Circuit-UBEC_p_1554.html

And then I run it with an old slightly puffy Dynam 3S 1250Mah battery with JST connector. It's the only thing that battery gets used for.

 

[Theuglycamel]

Kendalf, I was looking into the same thing for a receiver battery! Only problem I found with multi servo setups is the low (2A) output, but the regulated 5v is very promising... I never even thought about using it for a workbench power source. One more brilliant idea from the lovely @CarolineTyler!

 

[CarolineTyler]

Kendalf, I was looking into the same thing for a receiver battery! Only problem I found with multi servo setups is the low (2A) output, but the regulated 5v is very promising... I never even thought about using it for a workbench power source. One more brilliant idea from the lovely @CarolineTyler!

You're welcome!!!!

 

[stereodreieck86]

For all the people who dont believe in wonder: TAKE THAT, SUCKER

I got it back, very little damage.