Test results on the 30C 3S 2200mah Electrolite LiPo!

[Mikee]

I tend to only look at the individual cell voltages. I never take mine lower than 3.75 each.

I have a cell checker to

And my last flight after the 450 rebuild tonight was 3.77v 3.77v 3.78v .. it was getting dark and wind was picking up too again so no major climb outs ... pack on charge now and upto 1380 mah and going still at .4amp charge the pack was quite cool to just warm after flyin

[moonmanflyer]

Had my 6th and proper flight on the pack this eve, flew 3 and a half mins of flat out 100% on the throttle curve, my ham fisted 3D style and i have to say was very impressed with the pack.
Re-charge took 1139mah, didn't want to push the time until i know what i can fly upto, so 5 mins is easily achevable.
Was very surprised that the pack was not very hot at all, no way near as hot as my tornado pack gets that is also a 2200mah but 25C rating.
The pack held the head speed well, slightly better than the tornado pack does and on full pitch punch outs did not bog much at all.
The pack balanced very quickly on the charge, though i have not tested the cell voltage will do that next time after a slightly longer flight.

[LipolyGone]

I think this is exactly what happens Oli if you put the pack on the cellpro straight away & check the % left in the pack then re check it after the lipo has had time to settle it can be as much as 10% out.
Martin

Same here Martin, im writing it down as well, then it started looking wrong when i put in the input figures. Does the percentage accuracy get better if you rest the pack before charging?

[moonmanflyer]

Did a back to back comparison to the tornado pack this eve.
Have to say, until you fly them back to back you don't realise the difference, the electrolite has noticably more punch and doesn't let the head speed deteriate as much as the tornado, thats with putting big pitch movements in to try to make the motor bog, i would not say there was a huge difference but the diff was there.
The temp comparison was also noted, the electrolite being cooler after flight.
I ran both for 3 and a half mins 100% throttle, 3D ham-fisted style.
Checked the voltage on all 3 cells afterwards and was 3.79/3.8/3.8v.
Took 1165mah when re-charged.
Next flight i will push for longer flight times and see what happens later on in the pack, but within the 3.5mins didn't notice any drop in power, hoping this will be the same after 5 mins.

[Ashley Davis]

First 3D flight done today, didn't log it as it was the very first proper discharge with some real amps consumed. I will log a subsequent flight, potentially tomorrow if it isn't bloody freezing.

OK, so, flight observations only......

Headspeed..... very good, possibly slightly higher than a revo 2100 initially, although it did drop off and settle quite quickly to something pretty similar to a revo 2100. I flew this pack and a revo 2100 back to back to give me a point of reference.

Power in flight ..... headspeed stayed good under load, power delivery was good in this regard. However, when I flew the revo 2100 the weight differences were quite obvious. So similar headspeeds but a much lighter machine on the revo 2100, which equated to a feeling that more power was available on the revo 2100. Nevertheless, the electrolite did deliver a nice performance and I didn't find it bogging down, I just had to work a little harder because of the extra bit of weight.

Fit ...... the electrolite is a bit of a large bugger, due to fairly short cables on my ESC and the pack it turned into a bit of a battle to get it to fit nicely. Ended up kind of stuffing it all in a bit loosely as I couldn't get a nice fit due to my ESC position and the cables just not reaching as the pack didn't want to slide between the frames. It would go inbetween but would pop out again just as I was getting the canopy on, frustrating I'll need to do some repositioning of the ESC to alleviate this.

Temperature ..... came off quite cool after some mild 3D, no issues here. I will be increasing the pitch range on the model and hitting it a fair bit harder next flight.

[LipolyGone]

Spot on Ash mine has the headspeed of my new revos but I needed to trim the heli due to the weight.
I now have 3 types of lipo all 3 are different weights doh.
Heres what I found.
Compared to my tornado this pack is better has better head speed retension & allows me to do cyclic flips in any direction constantly without a hint of the head speed being effected th heli isnt as nimbe tho as it is with a revo onboard but it's not far off.
Tail down tick tocks were easyer to perform also than my tornado packs which bog quite badly with my ham fisted pitch & cyclic changes
I am impressed with the lipo but would like to see some logs from Ash before I buy one with my own hard earned.
What I would also like to see is the claimed C rating tested.
I wonder if Bruce would give me & Ash the go ahead to try the 2 packs in series in my 500 over the weekend at Charmouth with a logger on board?
Martin

[Ashley Davis]

we could do that Martin, the peak load would be around 60A, so it would not be continuous load of 60A (30C) but it would give an idea of what happens when you load them a bit heavier.

[electrolite]

I wonder if Bruce would give me & Ash the go ahead to try the 2 packs in series in my 500 over the weekend at Charmouth with a logger on board?

Martin, go for it. Do you have the right connector/adapter to do so?

Thanks for the feedback so far guys!

-
Bruce Mead
www.Budget-RC.co.uk

[Ashley Davis]

Hi Bruce, thanks, I have all the stuff we need. I'm thinking we could stick it in my 6S 500 and do a video as well (weather permitting). I think Martin wants to try it as well, I have the necessary logging equipment.

[electrolite]

Great, hope you guys have fun with that setup! Do you have high current connectors on the setup?

-
Bruce

[Ashley Davis]

yes, deans ultras on mine (and my 450s), I don't use anything else.

[ktargett]

It would be quite easy to test 60A continuous - just get prop adaptor and a APCe 4.75*4.75, stick on a TREX motor and power it up. 30C continuous is certainly asking a lot though, flat in 1.5minutes !!

I use a 4600kV motor with 4.1*4.1 to get 60A in one of my planes - but I use a 3s3700 for that.

Kevin

[LipolyGone]

Sounds like a good plan Ash you can do the honours in your 500.
I will be there all weekend from Friday lunch time.

Hi Bruce, thanks, I have all the stuff we need. I'm thinking we could stick it in my 6S 500 and do a video as well (weather permitting). I think Martin wants to try it as well, I have the necessary logging equipment.

[Ashley Davis]

OK Martin, I arrive early Saturday.


Anyhow, here's the first set of logs of the pack.....

[raptorheli2]

can you give us a run down here? how they are holding up, many cycles, are they really close to 30c?

cheers