Team Orion 3200mAh Race Spec LiPo
07-11-2007, 08:43 PM
#1471
Cool, so I'll keep buying IB cells every month to maintain that slight advantage that only matters to top 3% national level drivers and professional bench racers.
I like knowing what I have, every run, every cycle, every 100th cycle. Stay off the boards two less times a run and you more then made up for that graph.
I like knowing what I have, every run, every cycle, every 100th cycle. Stay off the boards two less times a run and you more then made up for that graph.
07-11-2007, 08:57 PM
#1472
In different words, I believe Trakpower used a nonrepresntive Nimh discharge curve to compare to their products discharge curve. If I was thinking of switching to Lipo and if I was a racer I would like to see such a comparison. Looking at that graph and knowing what my Nimh curves look like then I would be wondering how Trakpower made that mistake.
no self respecting battery matcher would sell IB's with a discharge curve like that
07-12-2007, 05:39 AM
#1473
Again, you can't use discharge curves from a low 20 amp discharge rate to compare lipos to nimh. Lipos do not respond to constant current in a favorable way. When was the last time you drove your car at a constant 20 amp rate for the life of the battery?
07-12-2007, 07:31 AM
#1475
And please, the lipo manufacturers are not saying you can't use them and have admitted they don't look as good at a 20A discharge. This has been discussed many times in many threads here. It's not some big conspiracy to convince people to overlook that info.
07-12-2007, 08:16 AM
#1476
This is the quote I was looking for:
This is from the "Viewing LiPo vs NiMH- Different perspective" thread from a few months ago and explains it far better than I can.
Originally Posted by linger
It's really not a relevant test to compare Lipo vs Nimh voltage. The average voltage is just an average voltage at a single discharge rate. In reality, a 2 cell Lipo has a lower nominal voltage but also a much lower DC Internal resistance than a 6 cell Nimh.
In RC applications, that means it you use a Lipo to race a low current mabuchi class, the voltage of a Nimh will far outclass a Lipo. In modified, the higher current drain puts the clear advantage to Lipo. A lipo will maintain most of its voltage under 40, 50, 60, 70, 80...hell, a 20C kokam 3200 can do 128 amps for a few seconds and stay above 6V.
In RC applications, that means it you use a Lipo to race a low current mabuchi class, the voltage of a Nimh will far outclass a Lipo. In modified, the higher current drain puts the clear advantage to Lipo. A lipo will maintain most of its voltage under 40, 50, 60, 70, 80...hell, a 20C kokam 3200 can do 128 amps for a few seconds and stay above 6V.
07-12-2007, 11:31 AM
#1478
Whatever your argument, I run them, in race conditions, every week in TC and 2wd buggy. I love them and don't feel I'm at any disadvantage. If anything, I feel that I have an advantage. I'm sure some other dudes on here will say the same thing. What is gonna carry more weight? A graph nobody believes is fair or accurate, or people that actually have experience with them under real conditions? REAL conditions.
07-12-2007, 05:12 PM
#1480
07-12-2007, 05:23 PM
#1481
lipo
hi everyone ive got 1 3200 orion and i run it in practice and 3 heats and a main and all i do is run it bring it in and charge it for next race and my lap times are very close if not better at the end and im very comp with everyone else [finishing in top 5 weekly] hope this helps 
07-12-2007, 05:44 PM
#1482
Geez with all this knowledge you are in possession of, you still bought 2??? Tell you what, yours are still new since it sounds like you've only bench raced them with your discharger. I'll take them off your hands at a decent price so you can get back to buying new packs every coupla months.
