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Thunder Power ProLite 13C 3S 11320 / X-Power Gold 20C 100

Old 04-27-2006, 08:43 PM
  #1  
everydayflyer
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Default Thunder Power ProLite 13C 3S 11320 / X-Power Gold 20C 100

Both of thes Lipolys weigh the same ,well the X-Power weigs 0.07 oz. more. Both Graphed at 8A.

The TP PL was purchased and the X-power was supplied by vendor. 2DogRC


Charles
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Old 04-27-2006, 10:00 PM
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Red Scholefield
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Originally Posted by everydayflyer View Post
Both of thes Lipolys weigh the same ,well the X-Power weigs 0.07 oz. more. Both Graphed at 8A.

The TP PL was purchased and the X-power was supplied by vendor. 2DogRC


Charles
Looks like TP really has an internal resistance problem. Their 1.3 Ah cells don't hold up voltage as well as the X-Power 1.00 Ah. They are also a bit short on delivering rated capacity to 3.0 volts when compared to 100% of rated for X-Power.
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Old 04-27-2006, 10:08 PM
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Interesting fact R.S.
 
Old 04-28-2006, 02:35 AM
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everydayflyer
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Originally Posted by Red Scholefield View Post
Looks like TP really has an internal resistance problem. Their 1.3 Ah cells don't hold up voltage as well as the X-Power 1.00 Ah. They are also a bit short on delivering rated capacity to 3.0 volts when compared to 100% of rated for X-Power.
Thunder Power ProLites were new for 2005 and 1320 is rated 13C. X-Power Gold 20C new this month. Either supplies the 6A average I need for my 3D Foamies and both deliver 16-18 amp. burst. Both weight the same ,both cost the same. One has approx. 30% less useable capacity at the levels I fly at. One is good for 8-8.5 min flight the other for 10.5-11 min. flights.

Voltage difference is approx. 0.1V for a 3S. Default properties on CBA Graph lines would overlay each other.

Charles
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Old 04-28-2006, 04:19 AM
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PBY-5A
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I wonder how slow things are at the "other" site.
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Old 04-28-2006, 04:29 AM
  #6  
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Not as slow as it is over here. I thought some might like to see early test results of few of the latest 20C offerings.

Charles
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Old 04-28-2006, 04:33 AM
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PBY-5A
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Matter of opinion, IMHO.

Nicer in here though, much nicer than "over" there.
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Old 04-28-2006, 02:10 PM
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Originally Posted by everydayflyer View Post
Not as slow as it is over here. I thought some might like to see early test results of few of the latest 20C offerings.
Thanks Charles, I really appreciate you taking the time to test and share the info. The results are pretty much what I expected.

Doug
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Old 04-29-2006, 03:00 AM
  #9  
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Yes the TP doesn't keep up it's voltage, but it is also 300 mAh higher in capacity. That's huge a capacity and weight advantage (relatively).
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Old 04-29-2006, 04:14 AM
  #10  
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Any one care about longevity, as in "Long Life"?

My Thunder Powers haven't gotten past 50 cycles. So far, no amount of hype has made anyone of my dead Thunder Powers come back to life, yet! :o
 
Old 04-29-2006, 04:38 AM
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rdespins
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How hard are you running them? I know some that have over 200 cycles and are still strong. The Gen 2 cells tend to be weaker than the prolites. I had the first gen Kokam 1500s that didn't last for 30 flights, but I don't go on a kokam bashing rampage =P.

If the cell says it can handle 13 C continuous, it doesn't mean it should be run there. Much like a car can be run in the redline, but it most likely won't last long if you constantly run it there.

Yes my first Lipo setup was chosen with Max continous as a standard run, and my batteries didn't last. My latest setup is more conservative and things are going great.

Ron
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Old 04-29-2006, 04:48 AM
  #12  
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At discharge #113 pack was discharged to 1.66 volts total.
It was last flown yesterday discharge # 145 . A 10 minute 3D flight by my son on his Fancy Foam 540 Edge ,HiMax 2015-4100 : 6.6:1 GWS 1260 prop.
A year old, allways stored at room temp. charged to 12.48volts. Discharged to less than 0.6V per cell 33 flights ago and still performing great.


http://www.wattflyer.com/forums/atta...5&d=1137179148

Charles
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Old 04-29-2006, 05:54 AM
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Discharge rate always have been 60% or less than C rated as printed on the labels. Charged at 70% of C. Never abused. Three brand new Thunder Power 11.1V 1900 mAH packs sealed in their factory pouches are happily puffing away on a shelf in the basement. Average temperature there is 68 degrees year 'round.

There were two packs of the 2100s puffing away on a LHS shelf. That LHS no longer carries Thunder Power anything. BTW, talking and e-mailing them did me no good. I was brushed off with "your packs are over 60 days old, no longer under warranty".

Things that bothers me the most about Thunder Power is the lack of veracity on their labels. If they misrepresent the country of origin of the product, what else are they and their "online shills" misrepresenting?

C/W has admitted that much on RCG, mind you.

Originally Posted by Charlie Wang
1)Seperator from Japan
2)Electrode material from Japan
3)Cell tap from japan
4)Electrolite mixed in Korea
5)Cell assemble in Korea
6)Shrink wrape from Taiwan
7)Tapes from USA
8)Insulation material from USA
9)Label printed in Usa
10)Silicone wire made in USA.
11)Pack designed and engineered in USA
12)Pack assembly in USA
13)Finished product final QC in USA
14)Critical material made in Japan, how about made in Japan

Regards,
Charlie

http://www.rcgroups.com/forums/showp...3&postcount=20 (link to CW's post)


Originally Posted by rdespins View Post
How hard are you running them? I know some that have over 200 cycles and are still strong. The Gen 2 cells tend to be weaker than the prolites. I had the first gen Kokam 1500s that didn't last for 30 flights, but I don't go on a kokam bashing rampage =P.

If the cell says it can handle 13 C continuous, it doesn't mean it should be run there. Much like a car can be run in the redline, but it most likely won't last long if you constantly run it there.

Yes my first Lipo setup was chosen with Max continous as a standard run, and my batteries didn't last. My latest setup is more conservative and things are going great.

Ron
 
Old 04-29-2006, 08:59 AM
  #14  
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Maybe if you hurry you can buy up the remaining Kokams from FMA.
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Old 04-29-2006, 03:57 PM
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Not exactly on topic, but since its going off anyways:
My problem with Kokams are the package proportions. Fuselages are long and thin, like Thunder Power Lipos. Kokams are short and thick, and don't fit well, since I pad my batt compartments with foam, considering the cost of lipos. Sure, I could fit them tight against the inside fuse walls, but that's not the idea.
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Old 04-29-2006, 05:37 PM
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everydayflyer
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Only LiPoly brand that has been around for years I have never heard of puffing,leaking , or dieing all by itself is E Tec. I have purchased approx. 20 TPs and one was a very lame gen II. All others have provided grreat service. I have purchased approx. 15 E Tech and never had any problems other than at 100 flights they are slap worn out. I have never purchased an Apogee but a vendors who stoped carrying them gave me several 4 cell packs which died on his shelf.I mangaed to save enough cells to build 2 3S packs. I purchased one Tanic 3S 1050 and it was a bad joke. Would not hold volts under a 6A load and died in less than 15 flights.My DualSky packs work very good. My Electri Power packs work very good.I have purchased over $400 worth of Kokams from 2S-3S 8C -20C and 340-2000 mAh and they all were a major disapointment. Most have only been used less than 10 flights. All purchased Jun and Jul. 2004 direct from FMA Direct.

Use what works best for you is the best advise I know. Not sure what all the loyal FMA Kokam users will do for LiPolys now. Fred sure promoted them well for many years. Perhaps the new line will be better.

Charles
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Old 04-29-2006, 10:42 PM
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Li-po usage;

It appears to me from reading tests by Red, Steve Neu and others, that the best thing that you can do, if you have a so called 20 C li-pol battery is to hold your discharge ( in the airplane ) to 12C-15C at the most. I think all li-pos need to be baby'ed for longer life. I do have three of the
newer 4s1p 20C poly quest li-pos from Hobby Lobby. These batterys are so powerful that I had to enter 4.2 volts per cell on the E-calc program to actually get what I got on my Astr whatt meter. I don't plan to run these
batteries over 55 amps at the most. Time will tell how they hold up. Would'nt it be nice if they could go 400 plus cycles like my old NCD's.
Probaly just dreaming, I think.
Jhouvener
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Old 05-01-2006, 03:03 PM
  #18  
Unbalanced prop
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Originally Posted by everydayflyer View Post
Only LiPoly brand that has been around for years I have never heard of puffing,leaking , or dieing all by itself is E Tec.
I agree with that. I still have four 2S 1200 packs of the original E-tec cells that are almost three years old and still perform very well. They still put out 85% to 90% of their cpacity on a 2C discharge. They are only good to about 6C but they are one tough cell.

Doug
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