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Old 02-22-2005, 11:46 AM   #1
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Default Step chargin with a CE Pitbull X3

Has anyone messed with the step charging feature of the pitbull X3? ...if so how did it go and what settings did you use? ...I'm particularly interested in stock and 19T settings.
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Old 02-22-2005, 11:50 AM   #2
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I tried it and didn't like it. Batteries dropped off really bad around 3 minutes.

I used pretty much the std settings...

0-200mah 2A
200mah - 3000mah 6A
3000mah - peak 5A

I also tried
0-200mah 2A
200mah - 3000mah 6.5A
3000mah - peak 5.5A

Went back to a straight 6A charge and they are much better.

Blake
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Old 02-22-2005, 11:54 AM   #3
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I wonder if it's a setting thing, or just the charger itself ...the thread on the Orion charger made me think about this again, someone posted:

Quote:
Originally posted by JMBetticher
Hye,

Atsushi Hara and Marc Rheinard used the Team Orion Advantage charger at the TITC 2005.

They used step charging.

Here is the set-up they used:

Step 1 : 2400mAh 7A - Mega Flex off
Step 2 : 2450mAh 0.2 - Mega Flex off
Step 3 : 4200mAh 6A
Temperature : 50°
Delta Peak : 3mV

Give a try and have fun !!
Those steps are way different than the ones you tried ...again different chargers so the above may not be relevant to an X3 anyways
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Old 02-22-2005, 11:55 AM   #4
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I have messed around with it a little. I havent seen any miraculous improvements-but the packs come off the charger a little cooler and still feel punchy. They also seem to charge longer which supports the idea of increased runtime at little loss of up front punch. Basically I set it at 6.5amps till 3000 Mahr, then 6.0 till 3500 and then 5 for the last part till peak.

Normally I charge at 6 on a T35GFX at 0.05 cut-off and have pack temps between 130 to 140 degrees. ON the Pitbull-they are 115 to 120 only.

I have tried 7 up front too. I have been changing it a little bit here and there.

Again-no concrete evidence to back up anything I have just typed.
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Old 02-22-2005, 12:20 PM   #5
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I'll try that setup...I'm all for punchy and leaving the batts cooler to boot.

Blake
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Old 02-23-2005, 05:08 AM   #6
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Robitronic also make a multi-phase charger.

Their first version was a 3-phase thing, but packs was too cool... So now they have 4 phases, and 4. is a custumable one, which basically is an overcharge phase with the purpose of getting the temp up.

Robitronic recommends phase 1 = 8-9 amps, phase 2 = 5-6 amps and phase 3 = 3-4 amps. Phase 4 is selectable and adjustable, where you can specify some minutes of extra charge, including the rate, I think.

You can read more here: http://www.robitronic.com/produkte/expert_e.htm and also download the manual here: www.robitronic.com , where the 4. phase is explained.
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Old 02-23-2005, 05:13 AM   #7
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Quote:
Originally posted by rayhuang
I have messed around with it a little. I havent seen any miraculous improvements-but the packs come off the charger a little cooler and still feel punchy.
Might not be a miracle, but to me it sounds great, with good punch AND lower pack temperature. Shold get better battery lifetime... Good for my wallet
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Old 03-28-2005, 08:14 PM   #8
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Default Problem with 3 Step

Anyone else having difficulty getting the 3step to work? It works fine for the first 2 stages but I have yet to see it hit the 3rd stage.

Setting are:

1: 3000mAHR 7amps
2: 3300mAHR 6amps
3: 4.5amps

Thanks,
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Old 03-28-2005, 10:36 PM   #9
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Default Re: Problem with 3 Step

Quote:
Originally posted by CRASH
Anyone else having difficulty getting the 3step to work? It works fine for the first 2 stages but I have yet to see it hit the 3rd stage.

Setting are:

1: 3000mAHR 7amps
2: 3300mAHR 6amps
3: 4.5amps

Thanks,
yeah i had the same problem when trying it out ona couple of packs. I'm going to call CE and see if they can help
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Old 03-29-2005, 07:47 AM   #10
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MY bud uses the Step charge and he has been experimenting with different settings and we then do cycle testing to see which is getting the best numbers...So far the step charging isn't showing any signifacant increase in runtime or voltage than a standard 6Amp continuous regular peak detect. So really it is up to you.
The battery life thing is really not an issue. I have been using the discharge tray over night technuque for months and I have only lost about 1-3 seconds of runtime in fifteen charges. SO really do what you think works but I never let my cells get above 118degrees and I usally get about 4200mah input with 3800-3950mah discharge with that techneque.
Hope this helps,
Stephen <><
Also that is the technque for stock and 19T not for MODS...They need runtime...
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Old 03-29-2005, 02:45 PM   #11
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Default Step Charging

After talking with Jim at CE, I have found out that each stage is additional to the previous stage.

Therefore if you set:

Step 1: 3000mAH at 7amps
Step 2: 3300mAH at 6amps
Step 3: 4.5amps

It will not start the final charge until the battery reached 6300mAH! So in order to correct this issue you would want the step charging to look like this or similar.

Step 1: 3000mAH at 7amps
Step 2: 300mAH at 6 amps
Step 3: 4.5amps

Works like a champ now!

Later,
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Old 03-29-2005, 02:56 PM   #12
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i have tried the Hara settings, for 1/12 stock. Batteries are fast, but it seems to kill some of the runtime.
I found that going to a 4A/900mA- 6A/2000mA- 5A yiielded better runtime. Basically, it looks like the longer you run the 1st step with this lo-hi-med type profile, the better runtime. Note, this is on the track vs. a cycle type situation. YMMV
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Old 03-31-2005, 04:34 PM   #13
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Default Charging Problem

Has anyone else noticed that when charging with the PitBull that the voltage tends to jump around quite a bit and not stay consistant? It is causing me all sorts of false peak problems.

Thanks,
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