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Old 01-24-2010, 08:54 PM   #691
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Originally Posted by Still Bill View Post
Epic/Trinity makes a small li-fe 6.6V pack with 220 mahr with an on/off switch connected. Perfect for pan car. Team EPIC / Trinity Part#: TEP 2006.

Price is $24.50 from Nexus Racing. Only place I had found one so far.

Works great as long as you have a li-fe capable charger.
Just ordered the receiver pack, thanks again
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Old 01-24-2010, 09:35 PM   #692
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I don't have a life Racing yet as I'm not sure if I can charge it. So does anybody know if an ice can charge it?
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Old 01-24-2010, 09:38 PM   #693
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I don't have a life Racing yet as I'm not sure if I can charge it. So does anybody know if an ice can charge it?
I know it doesn't have a LiFE profile, so no, it won't. A 2s LiFE is 6.6 volts.
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Old 01-24-2010, 11:34 PM   #694
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OK, here is a weird problem...

1/12 scale, Tekin RS Pro V203, 1s LiPo, voltage booster 17.5 Duo 1 motor. Zero degree timing on motor, max boost, max turbo, 0.3 delay, default start and end RPM, no voltage cutoff, neutral 10, brake strength 100, drag brake 5, rollout 3.10 inches.

Car runs great for about 5 minutes, then falls on it's face badly, slower by around 3 seconds per lap (10.5 fast lap, to 13.5 seconds at the end). Motor is only 106 degrees after entire 8 minutes. ESC was cold, so no chance of it overheating. Case, as well as posts weren't even warm.

Swap out motor to brand new 17.5 Duo 2, try different battery, different voltage booster. Same thing. Motor is only 115 degrees after 8 minutes. Not losing control (like if regulator was dropping out).

Otherwise, car was very fast. Leading race, had a lap up over 3rd place, but he was able to make it up, pass me, and finished 1 lap up over me. I can see dropping off a few tenths, but not 30%.

Any ideas?
Idea 1: Any chance the pack is nearing full discharge? Your settings seem pretty agressive, even for 17.5. How much are you putting back in? I might even just discharge it down to 3.0 volts and then re charge to see if the pack has lost capacity.

Idea 2: Turn the esc switch off and try running it with a known well working receiver pack. Is the 1s lipo box checked? I know you said you have no LVC; maybe it is not saving its settings similar to the problem some have had with the ERPM and SRPM?
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Old 01-25-2010, 04:58 AM   #695
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Idea 1: Any chance the pack is nearing full discharge? Your settings seem pretty agressive, even for 17.5. How much are you putting back in? I might even just discharge it down to 3.0 volts and then re charge to see if the pack has lost capacity.

Idea 2: Turn the esc switch off and try running it with a known well working receiver pack. Is the 1s lipo box checked? I know you said you have no LVC; maybe it is not saving its settings similar to the problem some have had with the ERPM and SRPM?
Both batteries (ThunderPower 5000 stick and 1 week old Speedzone 5200 saddle) took between 1900 and 2100 mAh, which is normal for the track we run on. That's not the problem. When I put them on the charger, the starting voltage is 3.8v.

I'll have to try an Rx pack at practice this Wednesday. I'll take a look at the settings later today.
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Old 01-25-2010, 05:17 AM   #696
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I don't have a life Racing yet as I'm not sure if I can charge it. So does anybody know if an ice can charge it?
nope, the ICE or the Checkpoint won't do LIFE batteries

but if you're looking for a cheaply priced good charger, look at the duratrax onyx230...that chargers does just about everything and is about $80 online

I got one and love it - i'm almost to the point of selling off my ICE and checkpoint just to get anohter Onyx
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Old 01-26-2010, 02:01 AM   #697
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Default Novak booster/RS-Pro

Hi all..
I have been using the Novak booster with my RS-Pro, 10.5 V200 Vegas with no problems..car is fast all the way..Roll out of around 67mm..AERCCC track

http://www.aerccc.org.au/ ..long straight.

Question..Im wanting to try the V203 software...What seems to be the problem with the booster/speedy?.
Have found the car has more power with the booster as to a battery/regulator.
i think its due to the amps that are given to the esc..the booster delivers about about 3amps..while a battery has about .5amps...would this matter?
Mike
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Old 01-26-2010, 02:16 AM   #698
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Originally Posted by mikecatts View Post
Hi all..
I have been using the Novak booster with my RS-Pro, 10.5 V200 Vegas with no problems..car is fast all the way..Roll out of around 67mm..AERCCC track

http://www.aerccc.org.au/ ..long straight.

Question..Im wanting to try the V203 software...What seems to be the problem with the booster/speedy?.
Have found the car has more power with the booster as to a battery/regulator.
i think its due to the amps that are given to the esc..the booster delivers about about 3amps..while a battery has about .5amps...would this matter?
Mike
Mike,

Most dont use a battery/regulator. Most are now using a LIFE pack which doesn't require a regulator.

The booster system just seems to have a problem with the new software so most are using small RX packs
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Old 01-26-2010, 04:36 AM   #699
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The booster system just seems to have a problem with the new software so most are using small RX packs
Actually, cannon, its not ALL boosters...the problem is when the booster (novak or otherwise) has a Low Voltage Cutoff - then that kicks in and messes with everything...

I've been running a booster in mine without issue - however, mine in NOT a novak booster

but yes, if you want the 'easy' life, just run a receiver pack and be done with it all
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Old 01-26-2010, 05:23 AM   #700
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This solves all the booster / receiver pack issues. 2 x A123 26650 LiFePO4 cells. Is insanely quick with a 10.5 and turbo.
But sadly not legal
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Tekin RS/RS PRO on 1s Lipo Q&A-top-a123.jpg  
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Old 01-26-2010, 05:26 AM   #701
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Default LiFe battery from Trinity

Ive been using the a123 from trinity and v203 without anything problems.

As for a charger, im not 100% sure but i dont see a problem with this. Charge them as a 5 cell nimh. Charging in a123 mode the battery peaks out at 7.20 and then settles in just under 7v. A 5 cell nimh is rated at 6v, but doesnt the charger charge it around 7v? This will charge the pack just under 100% and since we charge after ever run i dont think it will matter.

LMK what you think.
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Old 01-26-2010, 05:52 AM   #702
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The problem with a nimh charger is that it uses peak detection to tell when the battery is full. That could be over 1.5v per cell (9V for 5-cells) a 2-cell life pack would not survive that and is not safe to try.
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Old 01-26-2010, 08:54 AM   #703
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Ive been using the a123 from trinity and v203 without anything problems.

As for a charger, im not 100% sure but i dont see a problem with this. Charge them as a 5 cell nimh. Charging in a123 mode the battery peaks out at 7.20 and then settles in just under 7v. A 5 cell nimh is rated at 6v, but doesnt the charger charge it around 7v? This will charge the pack just under 100% and since we charge after ever run i dont think it will matter.

LMK what you think.
Charging a LiFe as a NiMh is really hard on the cells. I seem to remember that they will take some overcharge but it's not good for the cells. You shouldn't be charging above 7.2v with these cells if you want them to last a long time.
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Old 01-26-2010, 02:34 PM   #704
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Originally Posted by CarbonJoe View Post
Both batteries (ThunderPower 5000 stick and 1 week old Speedzone 5200 saddle) took between 1900 and 2100 mAh, which is normal for the track we run on. That's not the problem. When I put them on the charger, the starting voltage is 3.8v.

I'll have to try an Rx pack at practice this Wednesday. I'll take a look at the settings later today.
...Check this out. I'm having the same problem too, and here's the problem/response posted on the Tekin Forum:

"Ive been running the RS for only a couple of meeting as have been unable to eliminate the following problem.

I'm running a RSpro with a 13.5 gm Dr speed in my Tc3 and I find that after about a minuet I start loosing top end and eventually the car is running at the same speed as it would if it had just its stock timing. (not sure if the gm has any timing already applied as you can't adjust it). Motor temp is if anything quite cool as I can easily hold the motor after a 5min race, neither ESC or lipo are hot. ESC settings are as follows:

Firmware version 203 had the same problem with 200
Drag brake off
Brake Strength 100
Limiter off
Neutral width 15
Voltage cutoff 2
motor type bl-dl
profile 5
Sensored
Reverse strength 100
Push control off
Timing boost 10
Turbo boost 10
Turbo delay .5
Start Rpm 2000
End Rpm 7000
ramp 3.0

The FDR of the TC3 is 7.13, the lipo im using is the orion 30c 3800, Ive verified that the sensor is working (lights showing on the ESC at the start and end of the race). Any ideas??

Thanks,
Tom."

.....And the response:

"set your end point to 90 recalibrate then change epa to 100,or if you can add to the epa just do that.the radio is wandering and this will fix it

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Old 01-26-2010, 02:35 PM   #705
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I used my tekin with v203 with a 13.5 on sunday and a novak booster and had no problems. I am still working out rollout though. I am around 77mm, what else is everyone running with a 13.5?
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