Lipo DPR Tests

[SJFE]

Ok I collected the DPR data on the lipos only. I did't have time to install the lipo shield. I am hoping I didnt run them to deep. I am having a hell of a time trying to figure out how to capture an image of the graph. So I am going to just post the numbers untill I find the screen capture on this machine. The temp probes are off 20 degrees. I didnt get them taped down tight enough I guess. I got 119 off the duratrax temp gauge. The other data should be right on. All the runs are on the 45mm carbon fiber prop. I didn't get video of this run because I needed complete control. I din't want to blow over with the telemetery package and lipos in the boat. I did click a shot off.
Lipo Data:

Time: 6:32
Rate: 4 SPS
Charge: 1208 mAh
Battery Efficiency: 87%

Max Current: 60.78 A
Avg Current: 11.11 A

Max Voltage: 16.34 V
Avg Voltage: 15.64 V
Min Voltage: 14.23 V

Max Temp1: 96.80 F
Avg Temp1: 84.84 F

Max Temp2: 98.60 F
Avg Temp2: 85.11 F

Max Power: 864.00 W
Avg Power: 160.05 W

Max MPH 34.6

The fastest run of the day was on 7 cell Battle packs built by Mr Hill.
Max Speed was 36.5 MPH
BP IB3600 Stick1 7Cell

The OSE IB4200 Held there own today. They turned in runs of 33.2 & 32MPH.
Temps where 126 & 156(yieks) on the first set. 127 & 124 on set # 2. Both sets ran over 7 minutes.
OSE IB4200 Clip1
Clip2
Sorry about the camera work I had my hands full. The winds bad too.
I am working on the videos. I will have them up ASAP.

[Steven Vaccaro]

I cant wait to see that.

[hammertime]

cheers...have one for me

[SJFE]

It looks like testing is going to be postponed untill tomorrow afternoon @ 3:30. MrsSJFE is not feelin to hot and I don't want to leave her home alone for 2 hours. One more day isent gona kill me:).

[Fast Guy]

SJFE, which lipo's are you testing?

[ice329]

Did you like how the boat ran with them. I like it, and am waiting to see how close the 3600's are.

Fast Guy, I believe he is checking out the 7.4 3600 12/16c LiPos with the LiPo shield.

[SJFE]

It looks like testing is going to be postponed untill tomorrow afternoon @ 3:30. MrsSJFE is not feelin to hot and I don't want to leave her home alone for 2 hours. One more day isent gona kill me.
Today 02:52 PM

Couldent tell ya how I likedem Ice:rolleyes:

[ice329]

OHHH I misread what you wrote. I thought you ran the boat but didnt have time to report the test results... You didnt even run the boat.... I need to read better.. hahha

[SJFE]

Man that was alot of work...But worth it:D

[SJFE]

Still adding stuff...so hit refresh if ur watching the clips.

[sjslhill]

http://www.download.com/Screen-Print...-10188787.html

[SJFE]

Im on it...gimi 5 minutes

[SJFE]

Ok got the graph up

[ice329]

Thanks for the numbers. I thought they were gonna be good. I was worried about the burst number, looks like were good. 7.4 3600 12/16c LiPos and a LiPo shield and your into LiPos.

NJFE dont the SV turn into a agile beast running LiPo's. I like it.

http://s110.photobucket.com/albums/n...t=0e474f23.pbr

[SJFE]

I found it controllable & prodictable to be honest. What was off the hook where the Nimh3600s in the 36mph clip. It was every thing I could to to keep in on the water. If I prop up 40 is no prob. I am going to run these for a couple weeks and back the data up. Then it on to the 14.8s in parallel.

[sjslhill]

Hum, looks like that boat has very low energy requirments.....you can run down to 12V and you did not get close to that.

However the lower the temp the longer the packs should last.

[SJFE]

It looks like that. I need to back that data up with @ least two more tests to verfie it. Temps on my boat are almost always mild. I am confident they will hold up. I have the recharged and stored all ready. Saturday I plan on 4 or 5 hours out on the water with both boats. I want to collect some data on the BlackJack with 16cells.

[ice329]

Steve if you run duel 4000 packs per side... holy cr_p you can run for a long long time.

Try to keep those batterys in stock... heheh


By the why WHY are you selling your SV ! Keep it

[sjslhill]

You guys are doing some great stuff.....

[SJFE]

I am trying my best Ice is doing great work also. I wouldnt be doing it if not for you Sir. I am going to pick up the 14.8s soon. I have a good feeling about that setup also:).

[Rex R]

normally with windoze, one can use 'print screen' to capture a screen shot and then paste into a graphic utility to save as. irfanview works well for this(free too :)).

[Fast Guy]

Then it on to the 14.8s in parallel.

I was going to try the 14.8's in parallel. At 20C-8000mah combined it should be a very good setup for the price. I will wait for the results. Good work SJFE

[ice329]

Looking at the numbers a little deeper. The average current at 11 amps is not really right, the reason is because the tool is recording and counting the current before the run also.

Looking at the graph I would think the motor is pulling (not bursts) between 45 amps and 25 amps. Anyone agree?

I am curious to see if these peaks and averages go up using the IB3600 packs.

[SJFE]

I have the start set to delay. but only for 10 seconds. Looking at the graph I need to set it for 90 seconds to account for time to tape the hatch and launch. Give me another week and I'll have it refined to a scince.

[ice329]

I know you know what I am saying, I was just thinking out loud so to speak.

[sjslhill]

Hard to say but your correct....need more testing.

[MoparB]

You said a bad word in the first vid.

Awesome performance from that setup. Really flies.

[SJFE]

Sorry...potty mouth.
Thanks.
I plan round 2 of testing this Sunday. This time I will be gathering data on the IB3600s also.