inexpensive engineered Li-Pos
 

http://www.all-battery.com/

these guys are great! Check out their prices on the Li-Po!!!!

they even have supplies for building your own packs. And I saw a Li-Po pack for the Tx. Never saw one of those before.

Whatch out Li-Po here we come.

Honestly, there packs aren't all that great in price and quality. All the higher mah packs were only made of 2000mah cells....

I did however find these kinda interesting...
http://www.all-battery.com/index.asp...ROD&ProdID=835

I have seen better prices on the same mah lipo. They do have the li ion cells though.

I have these and they are pretty decent for the $
 

I got these from this guy. He is only a couple towns away from me and is a really good guy. The packs so far seem decent. I will say that they tend to be imballanced every couple charges, but as long as you balace them every few runs all is good. Good power, good workmanship and good price. Anyone else try these?

http://home.comcast.net/~truerc/custompack.htm


Custom built TrueRC 7.4V 2S2P 8000mAh SOLD OUT
Size
23mm x 50mm x 145mm
(0.9in x 1.96in x 5.7in)

Weight
Aprox 12oz / 340g

Discharge
Up to 80A Continuous

120A Max burst

Price
$70 SOLD OUT


Custom built TrueRC 11.1V 3S2P 8000mAh SOLD OUT
Size
34mm x 50mm x 145mm
(1.33in x 1.96in x 5.7in)

Weight
Aprox 18oz / 510g

Discharge
Up to 80A Continuous

120A Max burst

Price
$100 SOLD OUT

100$ for the 3S2P 8000 mah, seems like a good deal to me!

I found:
http://www.maxamps.com the best "value".

Those above, don't look that great.

True RC cells actually are pretty good. Nick, what are you basing your statement off of? These cells actually perform as they are rated. I was planning on getting 2 2s 8000mah packs from True RC, but then they ran out of stock, and I ran out of money.

I would NEVER buy from Max Amps after what happend to Daniel.

His situation is a little different, and the 4000mah cell isn't the only one they sell. I'm not saying that his situation was justified, just different circumstances (he's in Europe, for example). I've had good luck with Maxamps, recently received a 2s 6000mah battery.

Well that would be like not buying the ib 3800 or 4200 cause the problems people had.
I have fried a gp 3300 and gp 3700 to. It is a possiblity you get a bad cell

It's not the problems he had with them but the customer service.

If you go over to the RC Groups forum, many people swear by the customer service of Maxamps. One situation that is bad can't discount how good a company might be.

What happend?

Well I got a letter with mine that says you should break them in for the first 15 cycles. I don't know if this may have anything to do with it or not. I am not sure why they want to break them in either.

Lipos will improve their performance slightly over the first few cycles of their life. Some airplane guys advocate breaking in Lipos, others don't worry about it. Personally, I don't do it, and my I don't think that we would notice the difference in RC cars.

My experience?? Actually, the customer support was okay, but those particular cells are not what they claim to be (12C).

My experience, and bottom line here: You get what you pay for. And when it comes to batteries, I will not spare expenses anymore. Cheaper in the long run.

So they were much lower than 12c?

They can hold a 12C continuous discharge. However, they will put out ~3400mah at that point. At 10C they will put out slightly more than 4000mah.

I'm pretty happy w/ the TruRC cells I got. I ran last weekend for around 40 minutes on a single charge and then the tires started coming off my rims so I had to quit. They werent even dead yet. Still had over 7.4v in the 2 cell and over 11.1 in the 3 cell when I checked them using my Watts Up meter. I probably could have run another 10-15 minutes before the cutoff. Mind you this was not race conditions, just bashing around some local BMX jumps and some speed runs in a open grass field nearby.

Like I said, for the $ I can not complain. I'm sure that there are better cells availble, but for me these are fantastic. Time will only tell how they hold up over the long term.

When he gets more stock in a few weeks I will probably be ordering another set.

Lipo help. I just got an Apache 14.8v 3700 mAH Lipo pack, will I have any problems running it in 5 min race powering a Feigo 9l E-revo?

None at all, you will be able to run 10minutes if not more!

Orion 4800's
 

I know they are salty but thay have no equal as far as power and quality goes. And with my quark 125b controller they look slick.

Even though they may perform well, the thread title utilizes the word "inexpensive," which contrasts sharply with a certain aspect of the Orion/Peak 4800mah Lipo.

Good point
 

I have read a fair share of horror stories about lipo's turning into mini plasma cutters, destroying multi thousand dollar planes and starting house fires. It might not be the best place to save money. Kookam is the premier lipo producer you may want to stick with packs produced by them. Its like buying a cheap motorcycle helmet it may work fine but what if it doesn't?:032:

Kokam isn't necessarily "premiere." They tend to overrate their products, like their 1500mah 10C cells, which are in reality more like 6C cells.
In the airplane world, there aren't many people that use Kokams anymore. Part of the reason for that is because FMA Direct is no longer dealing with Kokam, but this biggest reason is because you can get a pack that is just as good as a Kokam pack for a lower price.

I hope that they show me some justice because I bought a pair of MaxAmps Lipoly 9000mah 2S3P 7.4V batteries to go in my soon to be souped E-Maxx.

You shouldn't have any problems with that battery setup supplying enough power.

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