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Old 10-22-2002, 07:16 AM   #1
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2400 cells still worth it?

Howdy folks,

I'm on the market for batteries to replace my aging 2000's after a three year racing hiatus... I guess some of you are even too young to remember 2000's.... Nitro is taking most of my racing time, electric is just for kicks, and I'm not much into the battery maintenance game... Hence I tend to think that 2400's would actually better suit my needs due to their lesser maintenance needs (no traying, no partial charges, or stuff like that). I intend to race the 17x2 class with them, and it looks like runtime should be okay.

My question is: Without considering any runtime issues, are 2400's still competitive today in the 17turn class? From what I remember when the first 3000's NiMH came out when I quit electric racing, everybody used to say that Nicads were still the hot ticket in non-mod classes because they were punchier and higher voltage in reality than 3000's.

Sorry if I'm three years late, but can you racers who use or have used both shed any light on this issue?

thanks much,
happy racing,

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Old 10-22-2002, 07:29 AM   #2
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Why not 3000 NiMh? Actually they take less maintenance, since they better accept partial charges and are less sensitive to not traying them....

I dont know if you want regular or matched packs, but at my LHS, Sanyo 3000 HV non-matched are less than 10% more expensive than Sanyo 2400. And the 3000 HV are more punchy. In addition the 3000 HV's like to be used several times pr. day, which 2400 NiCd doesnt.

However, NiMh require a NiMh compatible charger. And they are more sensitive to heat and overcharging.

Personally, I'm racing on a casual club level in stock class. For me, the 3000's are a little better than my 2400, but not more than I can win races with my 2400. But since the price difference was so little, I took the 3000 HV's. And next summer I might go into mod...
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Old 10-22-2002, 04:23 PM   #3
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Hey Lonestar, Long time no see

I still use my 2400's for stock sedan. The problem with NiMH cells is that if you go periods without using them for over 6 weeks it really kills them. You should cycle a NiMH every two-three weeks if you arent using them to race with.
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Old 10-22-2002, 06:00 PM   #4
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Lonestar, the NiMH's are less maintence than a NiCAD. With NiCAD, you gotta tray em to help boost they voltage, with NiMH's, you don't. I've been running World Class 3000's(Panasonic Stock Metal Hydrides) and man I'll tell you, they are alot better than my old 2400's, 2000's and 1700's. You can turn the same lap times near the end of a 5-8min. race cause the voltage doesn't drop off near the end like a NiCAD. The only thing you need to watch for when charging NiMH's is when they are ready to peak-you don't want them to overcharge, they are real sensitive to heat and can be damage. Invest in a new charger that utilizes peak detection(Novak Millenium, CE Turbo 30/35, CE PitBull, Integy). Before too long it will be nothing but NiMH's for R/C so you might want get started on it early. They are awesome!
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Old 10-24-2002, 02:18 AM   #5
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Default All right then...

Hey all

Thanks for your feedbacks. You mentionned there's no need to tray NiMH's as opposed to NiCad's... funny, I always see people traying them, especially before a charge...

I guess I'll pass on the 2400's, since 3000's are actually less expensive now, and they like to be ran a couple of times a day. I'll go for 3000's... wait and see on the 3300's...

Thanks all for your advice,
Happy racing


Hey Pat, long time no see indeed... Feels good to see the same ol'folks
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Old 10-25-2002, 04:28 PM   #6
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I would say running them on (3000) on a tray is probably a good idea because it will equalize the cell at .9 volts, then when you charge, you don't have a cell that peaks way sooner than another and overheats! I charge my 3000 at 6.8 amps and watch the mAh. I cut them off at around 25-2600 mAh. Doing this gives them SUPER voltage. and they don't get even slightly warm. I do that for running stock. After that run I use them in mod and give them a 5 amp charge the second time around, and I am doing WHEELIES on the straight!!! (Mod Truck)
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Old 10-26-2002, 07:11 AM   #7
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I would go with the NiMH.
Not sure if you need to tray them, I don't with my 3000HV's, but as Pit Crew mentioned it could be a good idea just before you charge them....
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Old 10-26-2002, 07:40 AM   #8
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Lonestar, If i were in your situation, i wouldn't even considder 3000's and would get some 2400's (providing you make sure they are SP's).

I still run them in off rd and stock touring.
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