phase 2 lockout = 900mA
phase 3 lockout = 2700mA

email from Phil @ Pro-Trak says,

Pro-trak for sale. I am selling my 20amp protrak that I have had for about a year and a half now. It is a great charger and comes with all the necessary cables.

Pro-Trak v10.72 (installed by Crimson Eagle)
Serial Cable
Test Leads
Original Bag
Calibration sheet
All original cables none have been cut or shortened
http://www.hildprog.com/ebaypics/RCSellout/ProTrak.jpg
$250 shipped

Motor runin stand, less then a year old
ICS discharger
http://www.hildprog.com/ebaypics/RCS...TrakExtras.jpg
$50 shipped

now running

5/7/5 with L/Hp/L

phase 2 lockout = 800mA
phase 3 lockout = 3000mA

can now feel a difference.
batteries seem to feel punchier for longer and then as they dump they go flat quicker. able to run 10 mins plus on 19t @ some speed.

Radio,

I'm pretty close to that, I'll have to make a few tweaks and match it up see if I can feel a difference. What cells are you using and what do you get into them?

Last weekend I took TQ and won the ROAR region 12 12th scale stock race. I did have a lot of help, thanks to all there, it was agood race, particularly thanks to Steve Ashby for his sportsmanship, a true gent.

Chris

Team Almighty GP 3700's

Going in high 3900's without equalizing and up to 4200 equalizing to 0.1v on a Novak Smart Tray

Radio,

That's pretty good, I'm not a huge fan of the Smart tray myself. I generally get in about 4350 on my new 3700's. My old ones were crazy, when i first got them they could take 4800 every time, now they are at around 4500, still very good cells.

Try a regular discharge tray like the cheap integy version or a pro match tray and leave them on there for 5 or 6 hours or so ( I have gone to 10 hours without a problem), you should be able to squeeze a little more in there. And the more you get in, the more you get out

Chris

Discharge FET
 

I'm sorry but I looking to replace the discharge FET on my 20A pro-trak,
does anyone have the component specs/id number so I can buy one.
Many thanks.

Yada,

I don't know if Phil gives out that info, I'll ask him though. However even if you do change out the FET, your discharge current will be off and the unit will need to be recalibrated. This is not something you can do.

Chris.

What % pulse setting are you using, I have been trying for more punch and have tried similar set up, changed the lockouts now (didn't know you could do that!) currently the pulse is set at 50%, is that too high?

Just found Crimson's set up at 30%.

Is there any benefit or downside to upping the pulse?

Barry,

I have tried 50% pulse from a 6A base but I didn't feel much difference from 30% from a 7A base. If you would like to try it and let us know that would be great. To get the most useful data I always like to compare any charge method against a regular 5A linear charge done on the same cells running about 4 cycles of each running alternate cycles, i settled on what I'm doing now as I'm getting good data 4350 Mah in on charge with 3700's and well equalized cells.

Chris

FYI.... guys i just got off the phone with the pro-trak guys i was told there running a special on there 30 anp chargers at 335.00 for a limited time.

4065mah in & 4258mah out from some 3700's :D

info from pack I've just done using 6/7/6.

Will have have to check lockouts etc

Charge Type : Linear
Charge Amps : 6.00A
Number of Cells : 4
18:07:21 Full Discharge B4 chg
18:07:22 Discharge End
18:45:04 Charge End
18:45:07 Discharge Start
18:53:46 Discharge End
18:53:49 Result Data Received
18:53:53 Cycle End
18:54:06 COM1 Closed
PTM RESULT START
18:53:49 D/CAP TIME SPREAD PV1 AV1 AVE POWER% MATCH% E/VOLTS PEAK/V F/PEAK F/BACK CCAP
PACK#01 4258 510 18 4.53 4.777 4.693 99 89 3.59 6.13 0.05 0.03 4065
CELL1/ 1 4325 519 0 1.15 1.211 1.191 99 99 0.99 1.53 0.02 0.01 4065
CELL2/ 1 4183 501 18 1.1 1.165 1.141 98 72 0.72 1.54 0.03 0.02 4065
CELL3/ 1 4275 513 6 1.14 1.195 1.175 98 94 0.94 1.54 0.03 0.02 4065
CELL4/ 1 4266 511 8 1.12 1.184 1.164 98 91 0.91 1.55 0.02 0.01 4065

Hi Radio,

Those numbers sound a little high, you might want to ask Phil to check your discharge rate. Try equalising first and see what you get in on Charge. My new 3700's fully equalized is right qround 4400.

Chris

no need to ask Phil, I'll put an ammeter on it and adjust the pot myself ;)

mind you it should'nt be out as it's only 5 month's old and hasn't been connected the wrong way round to upset the discharge fet