Brushless CRT Questions

Originally Posted by Sower

I'll look into the Maxamps packs. I'm not down on them, I've just heard they don't perform as well as some others out there. I'm definitely cool with having more run time due to higher mah. I'll have to check the weight too to make sure the chassis stays balanced.

If you have other lipo brands you know of that run stronger, I am all ears. IF you know of a good thread or site to visit...I'd love to find data to help pick the best pack. If I can push 1/8 truggy with a quark/neu 1515 2.5D with only 5s5000 as strongly as with an 8000 I'd ditch the 8Ah right away..don't like the weight. Just seems hard to find data on any of them and I haven't see anyone's eagletree results to show voltage stiffness under not just average but peak loads.

[Dafni]

I just replied to your email, Cadima. If you need more specific data, please just write me back.

I have an Eagletree system coming my way. This will finally settle some arguments around my place!

[Sower]

Originally Posted by cadima

If you have other lipo brands you know of that run stronger, I am all ears. IF you know of a good thread or site to visit...I'd love to find data to help pick the best pack. If I can push 1/8 truggy with a quark/neu 1515 2.5D with only 5s5000 as strongly as with an 8000 I'd ditch the 8Ah right away..don't like the weight. Just seems hard to find data on any of them and I haven't see anyone's eagletree results to show voltage stiffness under not just average but peak loads.

Yeah, unfortunately I don't have specific data. Just the Ford vs Chevy, or "my dad can beat up your dad" arguments. Sounds like Dafni might be taking care of that though. That would be very cool.

I've heard from places like Bishop Power Products that the Apogee lipos are very strong, as well as the Thunder Power. Don't know what they compared them to though.

[Serum]

No, it's not a for vs chevy story; that are opinions, the difference between the cells are just stated facts; I have seen graphs here on the forum of maxamps 8K packs and enerland 4350 packs. the 4350 packs stay close to the 3.4V on a 100A load; (340W per cel with a lot of room for play)., while the maxamps packs are getting in breathing problems at 300W per cell..., so you realy need a 2P to make it work, on 2P, the 8K maxamps stay at 3.2V per cell on 100A load.

(talking about realistic RC car/truck loads, so not a continues 100A, but 'peaks'

So to keep it going with maxamps packs; get 2P, that's my advice. but on 2P they don't perform (powerwise) like the Enerland 4350's. they are rather close though.

[glassdoctor]

Yes the Enerlands are superior.

But I'm assuming that we haven't seen any froum members post eagletree data from running Enerlands... and real in-car data is different than a lab test like the guys at rcgroups do with a bare cell and controlled equipment.

BTW, the Enerlands outperform the Maxamp cells on the graphs no doubt... although I have yet to see graphs of the latest Maxamps generation cells.

Personally I would rather have the 8000mah in my cars because I want the runtime for racing. There is a weight penalty... but at least they are drasticly less expensive per mah. That's the reason I'm running Maxamps.

But man, I still am wanting some of these Enerland Flightpowers :004: or the Kokams...

[Serum]

Yeah, it was on this forum a user posted graphs of his 4350's.. i think i even have them on my puter...

[Serum]

i have got a screendump of their 4900's here; these are Virusss his cells;

as you can see, at 105A load they stay at 3.54V per cell...

Impressive IMO..

[Dafni]

Man, do I look forward to my Eagletree stuff! No more guessing.
I have plenty of different cells and motors to try.

Just from my feeling, i can tell the 3700 Enerland cells are more powerfull than Maxamps 4000 cells in 2P.... and they claim 20C too :032:

Only one way to find out! Gawd bless electronic progress.

[Serum]

Amen Brother Daf.. Those flightpower do look impressive, don't you agree?

[Dafni]

Yeah, they are.

You get what you pay for, as always.

Just as I told a mate this morning: Maxamps are good for their price, can't beat their 8000 packs. They are like the daily bread and butter, whereas the FPs are the sunday steak. Now if I were rich, I'd eat steak everyday. :)

[Serum]

Most unlikely, since you are a vegetarian :p

but i get your drift Mate!

True, for the price Maxamps are quite cool! and i will buy more of them as well. but the trackpower packs (4900 mAh) are available in the US for 119 bucks, which is cheaper than the orions.
It is a fair price IMO.

[glassdoctor]

Thanks for posting the data Serum. My 12000maxamps have #'s like that too. ;)

[Sower]

Originally Posted by Serum

No, it's not a for vs chevy story; that are opinions, the difference between the cells are just stated facts; I have seen graphs here on the forum of maxamps 8K packs and enerland 4350 packs. the 4350 packs stay close to the 3.4V on a 100A load; (340W per cel with a lot of room for play)., while the maxamps packs are getting in breathing problems at 300W per cell..., so you realy need a 2P to make it work, on 2P, the 8K maxamps stay at 3.2V per cell on 100A load.

(talking about realistic RC car/truck loads, so not a continues 100A, but 'peaks'

So to keep it going with maxamps packs; get 2P, that's my advice. but on 2P they don't perform (powerwise) like the Enerland 4350's. they are rather close though.

Thanks Serum. I wasn't trying to say that there wasn't quantifiable data on the batteries to determine which one is more superior - just that I didn't have it. In other words, the only info I had was heresay or opinionative. Hence the Ford vs Chevy reference.

Great info on the batteries though - thanks!

[Serum]

they better glass! they are rated at 600A peak.. but the trakpower packs only weight 268 gram, and do as advertised.

[Sylvester]

This REALLY makes me wanna get those packs..