Turnigy LiFEPO4 packs - Page 2 - RC-Monster Forums

snellemin · 11.13.2009, 11:51 AM

I deal with the voltage drop, by going to a higher kv motor, or adding another cell with everything being the same.
Voltage drop is higher at the beginning, but once the pack warms up a bit(30 seconds or so) the voltage drop is less. Amp output is the same though.

sikeston34m · 11.13.2009, 12:24 PM

I'm wondering how the CC Neu 2650kv motor would do paired with 4S Lifepo4 packs?

Several have said they weren't comfortable with how warm it runs on 4S Lipo.

Hmmmm..........I smell a sweet spot. LOL

snellemin · 11.13.2009, 01:35 PM

I ran 2s2p A123 in my GTP with the 4000kv hacker motor and RX8. Everything got pretty warm.

jhautz · 11.13.2009, 03:30 PM

Quote:

Originally Posted by BrianG

MA packs may be using the same cells, but maybe they are weeding out the "bad" ones/matched better? Remember, I said "maybe".

So if I buy 5 of the hobbycity packs I should get at least 2 good cells for the 125 that MA is chargeing. Anything more than that is grvey at that point.

Just more proof of the MA scam. Seriuosly... What they are doing should be illegal.

lutach · 11.13.2009, 09:59 PM

Ok folks...It's official, MA said those are factory rejects. What I don't get is the only cells I had that failed were from MA. So who's selling rejects or low (extremely low) quality cells here?

sikeston34m · 11.13.2009, 10:08 PM

Quote:

Originally Posted by lutach

Ok folks...It's official, MA said those are factory rejects. What I don't get is the only cells I had that failed were from MA. So who's selling rejects or low (extremely low) quality cells here?

Where did they say that Lutach?

lutach · 11.13.2009, 10:09 PM

Quote:

Originally Posted by sikeston34m

Where did they say that Lutach?

http://www.rcgroups.com/forums/showthread.php?t=1141672

(Mike, sorry for posting another forum's link)

suicideneil · 11.13.2009, 11:14 PM

Turnigy lipos are like kit lipos- you may need to do some work yourself to finish them off, but after that they are 100% ready to go (barring any DOA cells).

sikeston34m · 11.13.2009, 11:46 PM

Quote:

Originally Posted by suicideneil

Turnigy lipos are like kit lipos- you may need to do some work yourself to finish them off, but after that they are 100% ready to go (barring any DOA cells).

There is a narrow spot in the solder trace on the 3S packs. It actually behaves like a fuse.

I'm sure the 5S setup was being over amped as they were being pushed hard!

I wonder if that "spot" is intentional?

revo guy · 11.14.2009, 08:56 PM

WOW look at what someone just posted in there. Both funny and sick, ok very sick

fastbaja5b · 11.15.2009, 08:55 PM

Lol Maxamps locked the thread

11.15.2009, 09:20 PM

so... what was posted? I missed it

revo guy · 11.15.2009, 10:41 PM

stupid swears and insults at maxamps and a picture of 2 guys ontop of eachother and the words "this is jason taking care of buisness"

11.16.2009, 01:18 AM

Quote:

Originally Posted by revo guy

stupid swears and insults at maxamps and a picture of 2 guys ontop of eachother and the words "this is jason taking care of buisness"

It's to bad that was posted as the more exposure MA receives on the obscene prices they charge, the better off the uneducated buyers are.

JThiessen · 11.16.2009, 10:09 AM

Well, unfortunately, it turned into a "He Said - She Said" debate instead of a data comparison between the two types of packs. Both "sides" were somewhat guilty of turning it into that.

If you had several MA Lipos that failed, it really has no bearing on the quality or validity of these particular packs. He did make a good point on pricing - if you don't like it, don't buy it. Their pricing is compatible with A123's pricing, and I have yet to see many forums filled with A123 bashing due to the pricing.

I for one have no doubt that the Asian built packs are factory rejects. Does that mean that they wont perform as well, maybe not - maybe so. Until there is long term testing, no one will know. Even if you were to have both packs brand new, they may perform as well right off the bat, but a factory "second" could start to show its deficiency down the road as it may "age" faster....

I am not a MA fan, and choose to not pay for what I percieve to be a product that is not as good as equivelently priced packs. But, I also wont tell someone that they wasted their money on them.