Battery Mod Info

[Raphael Dahan]

2600
30c
6s
22.2
Velcro 10 lb. tricky but works on 300 grams batts. So awesome
Remember to check for prop clearance. Don't want to go boom!
The 1300 setup from @FlyHighUSA got me started. I'm not as advanced as others so be careful. Start somewhere safe.

Thanks, interesting !! But I asked you about the mod you made on your radio control DBS?

 

[slim.slamma]

Thanks, interesting !! But I asked you about the mod you made on your radio control DBS?

Oh my bad
Sent my rc to @FlyHighUSA
DBS yes

 

[Raphael Dahan]

Oh my bad
Sent my rc to @FlyHighUSA
DBS yes

I also ordered from Ralph the bat and RC mod, amazing guy !!
Thanks Slim and fly safe.

 

[slim.slamma]

While we wait...
Is dji 5700 mah a gaffe/scam?
2hundo a batt is strictly business
Smart battery my azz more like extortion!
Dji battery drains way too fast drops mah right out the box.
They slick

 

[Raphael Dahan]

Is somebody know if SPC4500 can do storage charge for TB's? It doesn't mention on the spec of this smart charger.
Thanks in advance

 

[damoncooper]

Is somebody know if SPC4500 can do storage charge for TB's? It doesn't mention on the spec of this smart charger.
Thanks in advance

It's coming. Testing is happening now. FW update.

 

[damoncooper]

Excited. Just arrived fresh from the factory. They may not look like much but this could be the breakthrough I've been hoping for.

Or I may blow myself up. Or destroy my aircraft.

I'll post back when I've had a chance to (carefully!) test.View attachment 7093

Ok. Wow. First, I am alive.

Second, connecting to TB battery, it didn't catch fire, which is good and behaved according to theory.

Third, the aircraft didn't catch fire, fry the FC or blow up either.

Which means my theory is right - so far.

This bodes well for being able to exceed the flight time limits imposed by the DJI battery without PCB modifications.

More coffee, then more bench testing. If the second set of tests pan out I might be able to squeeze in an actual flight test today.

 

[Raphael Dahan]

Ok. Wow. First, I am alive.

Second, connecting to TB battery, it didn't catch fire, which is good and behaved according to theory.

Third, the aircraft didn't catch fire, fry the FC or blow up either.

Which means my theory is right - so far.

This bodes well for being able to exceed the flight time limits imposed by the DJI battery without PCB modifications.

More coffee, then more bench testing. If the second set of tests pan out I might be able to squeeze in an actual flight test today.

Good luck Damon, go ahead without to much coffee

 

[Phatzo]

Ok. Wow. First, I am alive.

Second, connecting to TB battery, it didn't catch fire, which is good and behaved according to theory.

Third, the aircraft didn't catch fire, fry the FC or blow up either.

Which means my theory is right - so far.

This bodes well for being able to exceed the flight time limits imposed by the DJI battery without PCB modifications.

More coffee, then more bench testing. If the second set of tests pan out I might be able to squeeze in an actual flight test today.

what is your theory?
excuse my ignorance.
can you direct me to the post or tell me here?
curious


Sent from my iPhone using Tapatalk

 

[damoncooper]

Good luck Damon, go ahead without to much coffee

Bench test in progress. Working as expected so far. One small wrinkle, but I've found a simple workaround. Testing the edge cases now.

 

[JOEREZ1XM]

Bench test in progress. Working as expected so far. One small wrinkle, but I've found a simple workaround. Testing the edge cases now.

View attachment 7101

What are you testing, looks like a regular auxiliary battery. Keep us posted.

 

[damoncooper]

What are you testing, looks like a regular auxiliary battery. Keep us posted.

Something that "armchair experts" will probably debate for months and call me everything from idiot to rogue to madman if it works.

But it's still is more likely to fail, or provide terrible results. Which is why I'm not saying much else until I see it fly and get results.

Then those same "armchair experts" can guffaw about how they knew it was a stupid idea

We'll see. Stay tuned. Your battery idiot madman is trying....

 

[unyks]

That's how imagine Damon sitting at home right now..

 

[damoncooper]

 

[damoncooper]

View attachment 7102

That's how imagine Damon sitting at home right now..

Actually listening to my wife telling me how we need to buy a fire extinguisher....

 

[Raphael Dahan]

SO, what i noticed from the short video; remaining mAh going up while the total does not move after 5....minutes.
what does it mean? also the temp was 30...c to hot for me. and?

 

[damoncooper]

SO, what i noticed from the short video; remaining mAh going up while the total does not move after 5....minutes.
what does it mean? also the temp was 30...c to hot for me. and?

Temp is fine. Optimal discharge range is 20C - 40C. Propulsion output is limited <11C or >45C.

This was just a bench test. Just note the increasing flight time remaining as the flight goes on . And no, it wasn't plugged into the wall.

 

[damoncooper]

Anyone know where I might find one of these that can handle 50 Amps? It needs to be light enough to fly (<40g preferable).

http://www.prodctodc.com/300w-power...iver-module-voltmeter-p-547.html#.VtuOIJMrJTI

 

[Skynet1]

Quite an experiment this is all turning into, like reading a good murder mystery. Hope it doesn't turn into Murder in the Boston Skies.

 

[Igor88]

Not a record, but nice way to prolong bad TB47 battery life:
Very bad TB47 with only 3.556mAh left + 2 multistar 3S 3.000mAh batteries (17€ each) = 17.5 min FT. Only 360 gram heavier then craft with TB48 so no impact on flying behavior.

in air:
after landing: