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Old 07-02-2008, 07:32 AM   #1
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Default LiPo - Six month report card

It has been almost six months since ROAR announced their intention of allowing LiPo. Has it been a good decision?

So let's hear what have been the good points and bad points of running LiPo.

What about all the horror stories I read about "exploding" LiPo packs. I haven't seen anything on this site about it...

Your comments, anyone?
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Old 07-02-2008, 07:40 AM   #2
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It really hasn't impacted me, as my LHS had already allowed the use of LiPo and Brushless LONG BEFORE the ROAR organization decided to approve them.

So the short answer is YES, it was a great decision to allow LiPo.

The pluses are that far fewer packs are needed, recharge time is reduced, and performance is more consistent, week after week after week.
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Old 07-02-2008, 08:17 AM   #3
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Quote:
Originally Posted by r0adrunn3r View Post
It has been almost six months since ROAR announced their intention of allowing LiPo. Has it been a good decision?

So let's hear what have been the good points and bad points of running LiPo.

What about all the horror stories I read about "exploding" LiPo packs. I haven't seen anything on this site about it...

Your comments, anyone?
Lipos don't explode. If they do anything they get hot and catch fire but don't explode like a NIMH cell would.

I never seen any lipos go bad at the track but have seen 2 so far quite working. Both packs that went bad where the Trinity Blue cased lipos for what ever reason but other than that lipos have been great in are area.

I know I have been running the Trakpower for over 6 months with no loss in performance. Been a great experiance for me. Are tracks allowed lipo and brushless long before ROAR figured anything out so it has been great. Track attendance has been better than it has been in years.
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Old 07-02-2008, 08:30 AM   #4
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I have had mine for over a year and I will never go back to nihm packs.
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Old 07-02-2008, 08:31 AM   #5
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I have had mine for over a year and I will never go back to nihm packs.
I said the same thing until I bought a 1/12 scale. No choice.
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Old 07-02-2008, 08:33 AM   #6
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I said the same thing until I bought a 1/12 scale. No choice.
12th scale isn't in my future so looks like I'm safe....
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Old 07-02-2008, 08:34 AM   #7
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I said the same thing until I bought a 1/12 scale. No choice.
+1 except I got a World GT car instead of 12th.
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Old 07-02-2008, 08:35 AM   #8
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Clint doesnt do anything small lol
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Old 07-02-2008, 09:08 AM   #9
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I would have to say the the lipo revolution just keeps looking better all the time. My customers are thrilled with running lipo's. I continue to see problems with the round cells (going bad, exploding, ect), but almost no issues with lipo what so ever. In fact I am the only one in this area (as far as I know) that has had any lipo issues.

I have had two of the Track Power packs swell badly and become un-usable. However, I do beleive that these were errors on my part as I have found myself accidently starting a charge using the wrong profile one more than one occasion. I hear that the pulses that come from some charge profiles can do significant permanent damage to a lipo in very short order.

All in all, I feel that lipos are the best thing to come along in quite some time. I recently got into 1/12th scale stuff and I am absolutely disgusted that I had to purchase more round cells.

Keep em crossed!
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Old 07-02-2008, 09:21 AM   #10
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Unless they aren't allowed I don't see much reason to purchase NIMH cells anymore. Most Lipo packs are on the same playing field, if everyone ran the same quality Lipo (even from other manufacturers) it will pretty much end the battery war.

I charged my packs on a Wednesday, went racing on a Saturday, had awesome performance the whole day.

In the last year I have had good performance out of all of my packs with little issue. Only problems I have had were in airplanes where the pack suffered impact damage, and another issue with a battery being bad out of the box...but it was taken care of. Not intentionally, I even ran one through my clothes washer, and dryer and to my surprise the pack still works...and I didn't burn my house down.

On a hobbyshop to customer level though I am seeing a lot of failures, usually from user error but also from bad packs. Some brands being more notorious than others. Most of the time though the user is over discharging the pack...which is one huge negative with lipo, you have to rely on a working cut off or risk damage.
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Old 07-02-2008, 09:25 AM   #11
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Whats the best charger for lipos? I am getting ready to switch to lipos?
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Old 07-02-2008, 09:27 AM   #12
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ROAR isn't the magic bean that made LiPo grow. What they have done is institute LiPo testing (for approval) and some standards (right or wrong). The new rules will guide what the major companies release because they want to supply cells for racers and bashers. The approval process will force the manufacturers to provide good cells to RC.

I've seen a few packs puff up but I haven't seen any fires personally. It's just like anything else, misuse and/or not following instructions can kill the cells or cause a fire.

It's great that ROAR stepped up and got the LiPo rules in. For many classes we now have a choice.

My personal feeling is that 4 cell (specifically 12th) has the correct batteries for the class at the moment. With the newer NiMh cells LiPo is a non issue for me at the moment. I'll continue to play around with LiPo but it's just not there yet.
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Old 07-02-2008, 09:35 AM   #13
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One more thing, do you guys run voltage regulators in a 7.4 lipo pack in a touring car? Or does my speedo do that? lrp sphere tc?
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Old 07-02-2008, 09:48 AM   #14
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LiPo is the ideal choice for club racing, they reduce cost and increase reliability & longevity. New NiMh packs still look to have a performance edge in spec racing but the gap is shrinking and once they get 5-10cycles on them any advantage they had is gone.

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Old 07-02-2008, 09:53 AM   #15
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Whats the best charger for lipos? I am getting ready to switch to lipos?
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