LIPO Questions

Old 07-17-2009, 05:04 AM
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I am purchasing 2 new lipos for my brushless set up. I have narrowed it down to three brands:
Reedy, SMC and IP Intellect (i believe these are Trinity?) The reedy is most pricey and the other two around the same. Are they all about the same quality? Any to avoid?

Also the SMC batts have a 6000mah capacity with 28C rating while the other two are 5000mah with 35C rating. They are all about the same output but is there a benefit to going with a higher capacity and lower C than vice versa? Will the 6000 give me longer run time?

I want to buy these today but need this clarified before I purchace. Thanks
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Old 07-17-2009, 08:39 AM
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SMC tends to be conservative in their rating so they may well have the same rating if they rated their lipo like the others. The 6000mah will give you more runtime.

Reedy - seems like you're getting dinged for the name, don't really see what the diff in price gets you. Lots of peeps here run SMCs and are happy with them.
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Old 07-17-2009, 09:11 AM
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is there a legal limit of capacity of batt you can run in races?
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Old 07-17-2009, 09:19 AM
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It depends, usually it's just limited to a certain amount of cells you can use. But I've noticed that with the new slash and other corr truck classes they are limiting the batteries to 2s 5,000 mAhs.
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Old 07-17-2009, 12:27 PM
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6000 will give more runtime than 5000.

Output potential
6000 28C = 168 Amps
5000 35C = 175 Amps

That's a lot of wattage - you will do fine with 6000 28C and have more runtime (of your choices).
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Old 07-17-2009, 12:40 PM
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Like people have already said, the larger the mah, the longer runtime you will have.

As for the C rating.. if you are running a mod or fast brushless, its not going to really matter much, your power is going to come from your gearing and motor. If you are running a 17.5/27t class, you will have a noticeable difference with a higher C rating. More punch.

I've seen the 5000mah 2S 40C IP packs on ebay for $69.99 new direct from Hong Kong.. can't beat that.. same packs Trinity is selling for $140!

You'll need the check with your local race program to see what they allow.. usually as long as they are 2S and hardcased, I haven't seen any problems around our local race community.

Jerome
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Old 07-17-2009, 05:34 PM
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I had ran the SMC Lipos in my VXL and they are exceptionally good with good run time and they have a good price for them so i would get them.
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Old 07-18-2009, 08:20 PM
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Thanks, I bought the SMC 6000 mah... cant wait to run them.
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