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-   -   How good are these NeuEnergy or Neumotors Lipo's ? (https://www.rc-monster.com/forum/showthread.php?t=20048)

SpeedAssault 04.08.2009 05:32 PM

Well if that's all true that is great and would make sense.

Ya think an extra 500mah is worth it ? 5000 $205. VS 5500 $237.

Arct1k 04.08.2009 05:35 PM

I'd just spend $110 on two of these - Neu 30's 5s2p 5k

http://www.flydma.com/product_info.p...roducts_id=254

Arct1k 04.08.2009 05:36 PM

Or 5s2p 6.4k for 140...

http://www.flydma.com/product_info.p...roducts_id=172

SpeedAssault 04.08.2009 07:57 PM

Quote:

Originally Posted by Arct1k (Post 277651)



splitting the weight sounds appealing. price sounds good, but that's only 80 amps continuous . Any other suggestions ? ?

mkrusedc 04.08.2009 08:07 PM

I love my 5s 5000 mAh. Excellent battery!

Finnster 04.08.2009 08:58 PM

Quote:

Originally Posted by SpeedAssault (Post 277691)
6400 really price sounds good, and the 5 in series is not an issue ?

something does not add up 5s at 80c for only $70. :oops:

Inventory liquidation as no longer a Neu distributor. LOts of awesome deals. That is all that is left. I think I bought half the store lol

lincpimp 04.08.2009 09:51 PM

Quote:

Originally Posted by SpeedAssault (Post 277735)
Per voltage and MAH the price is not comparable


Hear me out , a 3200 battery at 5s is cheaper to do twice than to build one at only 5000 mah ??

Is there a battery expert in the house ?
I 'll search in tutorials again


Sure dont make getting a battery easy do they :oh:

Those are closeout prices...

If you run a pair of the 3200 5s packs in parallel you have a 6400 25c 5s pack. For around 150 shipped. You cannot beat this deal. I am a battery expert (of sorts) and can safely say that...

I would buy some more lipos from there, but I have my money tied up right now...

SpeedAssault 04.08.2009 10:01 PM

Quote:

Originally Posted by Arct1k (Post 277649)
I'd just spend $110 on two of these - Neu 30's 5s2p 5k

http://www.flydma.com/product_info.p...roducts_id=254

Quote:

Originally Posted by Arct1k (Post 277651)


Man Talk about Confusing :oh: Hate to burst your bubble but You cant do that:
Found here http://www.robotwars.00server.com/tutorials.html
Lipos wired in series (+ to – ) will increase the total voltage. For example, two 2s lipos wired in series will create a 4s lipo. The mah capacity will remain the same.

Lipos wired in parallel (+ to +, - to -) will increase the total mah available, For example, two 2s 5000mah lipos in parallel will create a 2s 10,000mah lipo. The voltage remains the same.



Please explain how you series these batteries to get 5000mah but only get 5s ?



Per voltage and MAH the price is not comparable

Hear me out , a 3200 battery at 5s is cheaper to do twice than to build one at only 5000 mah ??

Is there a battery expert in the house ?
I 'll search in tutorials again


Sure dont make getting a battery easy do they

lincpimp 04.08.2009 10:05 PM

Quote:

Originally Posted by SpeedAssault (Post 277749)
Man Talk about Confusing :oh:

Please explain how you series these batteries to get 5000mah but only get 5s ?



Per voltage and MAH the price is not comparable

Hear me out , a 3200 battery at 5s is cheaper to do twice than to build one at only 5000 mah ??

Is there a battery expert in the house ?
I 'll search in tutorials again


Sure dont make getting a battery easy do they

You run them in parallel, I messed up in my last post, fixed now. Sorry for the confusion, long day at work for me!

SpeedAssault 04.08.2009 10:09 PM

Quote:

Originally Posted by lincpimp (Post 277751)
You run them in parallel, I messed up in my last post, fixed now. Sorry for the confusion, long day at work for me!

yep sorry , I had to read a few times sorry , I just returned from getting my taxes done, yawn headache.


EDIT correction:

It's a 64amp 20c each , if Paralleled it doubles to 128 amp continuous

Two 5000mah 5s 20c (64amps/128brst) / divide by 1000 is 128 amps continuous /256 burst
or
Two 3200 5s 20c Packs = 6400 5s 128 amps continuous

lincpimp 04.08.2009 10:38 PM

Quote:

Originally Posted by SpeedAssault (Post 277756)
yep sorry , I had to read a few times sorry , I just returned from getting my taxes done, yawn headache.


It's 80amp c each , if Paralleled does it double to 160amp continuous ?

gonna need 120a

Yep double the capacity (mah) and you double the amp output. The C rating remains the same as that is related to the individual cells.

SpeedAssault 04.08.2009 10:54 PM

Quote:

Originally Posted by lincpimp (Post 277772)
Yep double the capacity (mah) and you double the amp output. The C rating remains the same as that is related to the individual cells.

Wow man thank god you are here, seriously, thank you for explaining this. let's rap this up :party:
So it's a great package to run and it will produce how much continuous amps ? 160 amp or 125 ? or 128 20c + 64amp x 2 =128 .. which is plenty for a 2200-2383 KV to provide speeds above 55mph on a less than 10lb car ? ?

SpeedAssault 04.08.2009 11:05 PM

So now it's a matter of deciding on

Two packs of 5s 2500 at 30c 70amp = 5s 5000mah 140amp
or
Two packs 5s 3200 at 20c 64amp = 5s 6400mah 128amp

What amperage is good ?
does the 140 give more available power or speed and cooler temps but less run time than the 6400 ? ?
or is the 6500 128a plenty of needed power for motors and cool temps ?

lincpimp 04.08.2009 11:16 PM

Quote:

Originally Posted by SpeedAssault (Post 277783)
So now it's a matter of deciding on

Two packs of 5s 2500 at 30c 70amp = 5s 5000mah 140amp
or
Two packs 5s 3200 at 20c 64amp = 5s 6400mah 128amp

What amperage is good ?
does the 140 give more available power or speed and cooler temps but less run time than the 6400 ? ?
or is the 6500 128a plenty of needed power for motors and cool temps ?


The 3200 packs are actually 25c, the pic is wrong. So they would be good for 160 amps cont if you run 2 5s packs in parallel. If I were you I would get the 3200 packs. Longer runtimes, more amp capability and the price is not much different.

125 amp capable 5s lipo is good for just about anything up to 8th scale geared for less than 50mph. ( I have figured this with multiple setups in dozens of vehicles) Neu lipos are good for their rated specs, unlike other brands.

Finnster 04.09.2009 01:20 AM

As linc said, you are not going to really tell a diff in punch between the two. I would just go by what fits your app better. The 2500 cells are good (I have some) but they are short packs and somewhat tall. The others will lay flatter.

The 2500 packs is what got my crt.5 past 60mph. Either those packs will get an 1/8th to 50 if the motor and gearing is right.


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