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Old 08-08-2005, 05:19 PM   #46
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If you keep your peak detect low with the IB they will hold up well. The 3700 have been around since February and the IB since late May so it's to early to know for sure. We have sent some packs to some of our drivers since the middle of May and none of them have reported any major issues.
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Old 08-09-2005, 06:16 AM   #47
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I notice most web site now have the IB3600 what is going on with the IB3800? will there be any more IB3800?.
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Old 08-09-2005, 07:29 AM   #48
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IB3800's have been awesome so far...I just started using a CDR5000 Futaba charger. Can someone give me some step charging specs with Delta Peak settings for this charger? Also, what rate should I discharge the cells with the charger? I also finish them off on a Spintec Batman.
Thanks!
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Old 08-09-2005, 07:54 AM   #49
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Quote:
Originally Posted by Glowster21
IB3800's have been awesome so far...I just started using a CDR5000 Futaba charger. Can someone give me some step charging specs with Delta Peak settings for this charger? Also, what rate should I discharge the cells with the charger? I also finish them off on a Spintec Batman.
Thanks!
Joe

I don't think the CDR5000 has a step charge feature (?).
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Old 08-09-2005, 08:07 AM   #50
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Quote:
Originally Posted by jag88
I don't think the CDR5000 has a step charge feature (?).
It doesn't, but we can setup three profiles for the steps and manually switch profiles after each step has completed. Its a bit of a hastle, but I plan on testing the differences in performance of my new IB3800 pack tonight on the CDR. I'm going to test for 19 turn use with a normal charge of 6.0A and temp cutoff of 48F and compare it to the Nexus settings found here:

http://nexusracing.net/newsdesk_info.php?newsdesk_id=17

I prefer to use the temp cutoff and just set the delta peak at 10mv/cell since the CDR likes to false peak with anything less.
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Old 08-09-2005, 08:13 AM   #51
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What are you going to compare the IB3800 to ?
Please post results.
Thanks.
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Old 08-09-2005, 08:52 AM   #52
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Quote:
Originally Posted by jag88
What are you going to compare the IB3800 to ?
Please post results.
Thanks.
I'm going to compare it to itself first. In other words, I'm going to see what the difference between a straight charge at 6.0A and a step charge using the Nexus settings.

Unfortunately I don't have a new pack of GP3300's or anything else to compare it to, but I'll break out a well used decent pack of SMC GP3300's and do the same comparison between a striaght charge and step charge. I'm going to discharge them at 25A with a .9v/cell cutoff after they have cooled to 40C (104F), since I've found that discharging a whole pack at a constant rate of 30A immediately after peaking heats them up too much (62C+/145F+) at the end.

Danny, would you recommend any parameter changes for this test with the CDR?

I'll post the final charge/discharge results from the CDR.
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Old 08-09-2005, 08:57 AM   #53
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Quote:
Originally Posted by nimble
We've been testing out the SMC IB3800's, and have been very impressed.
They do get hot quickly, and with the capacity they take a long time to charge at even 6amps. The step charge of the TwoLane charger works great for them, as we charge them at 9amps until about 3500ma, then step it down to 3amps to peak them to full capacity without getting too hot. Is working well.
I just read your post and now I feel compelled to test your two step method as well as the Nexus three step and see if there is any difference there.
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