Optipower or Gens ace?

[nitros]

Anyone tested FlightPower ones out of interest?

U gonna start something now


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[KnifeEdge]

Anyone tested FlightPower ones out of interest?

Ben has. I think he would agree that they have a big C...rap rating.

[KnifeEdge]

I have not tried Thunderpower. I would like to but I can't justify double the cost of optipower.

[Mark_T]

Anyone tested FlightPower ones out of interest?

Edit: and Thunderpower..

I'm out of the country right now so I don't have my notes with me, but from memory, Optipower/FP/Thunderpower were all pretty close to each other on the ones I've checked myself, none of them were close to their marked 'C' rating.

The 25C Gens Ace packs exceeded their marked rating. We should also mention the size of the packs though which I neglected to mention earlier.

The Gens Ace packs were from memory all below 4000mah so strictly speaking I can't comment on 5300 packs.

[Jamin_00]

I have some 1300 3S flightpower packs that I made into 6S packs for my 450. They have puffed after 15 cycles. I bash anything I consider to not do what is claimed.

I have just sent Andy an apology for taking a swipe at him in public like that. Uncalled for and not needed, enough crap going on without me starting anymore

[waveydavey]

And the gens ace has the plastic plates around to protect them in case of crash


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Stangely enough they are just about the only thing that survived my dumb thumb on the Fusion last night. Slipped forward slightly and damaged the shrink wrap but they cycled okay.

[Snaaakeey]

Just for giggles my pl6 tells me my cheapo 5000mah zippy 40-50c (x4) have 10 flights each and all the cell resistances are between 1.5 and 2. I have 2 zippy 5000mah 45-55c batteries with 10 flights each and these read 1.5-1.8. Not suggesting these batteries are going to last long. I expect they will be suffering by 50 cycles but at £50 each i don't really care. They are providing more than enough power for my 4525le in their new state. I'll keep an eye on their performance and post how they did at the end of the season. A friend I fly with is running optipower 5000mah batteries on his new 700e and we see no power difference on fresh packs ( caveat ! He is running the standard motor but my 7hv is heavier so it's a bit subjective) Haven't had a chance to see if optipower holds power better throughout the flight. I'm sure the more expensive pack will last longer but turnigy and it would appear zippy ( in my limited experience ) give incredibly good bang for your buck!


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[waveydavey]

I would take the IR readings from the PL6 as being quite liberal. Mine say the same for my Gens Ace and Turnigy packs, this happened after a firmware update. On more sophisticated equipment they were around the 2.3/2.4 mark.

Have to agree though that Turnigy packs have quite a bit of grunt to start with but lose this about a minute in whereas the gens Ace are a bit softer but hold this all the way to the beeper

[Snaaakeey]

I would take the IR readings from the PL6 as being quite liberal. Mine say the same for my Gens Ace and Turnigy packs, this happened after a firmware update. On more sophisticated equipment they were around the 2.3/2.4 mark.

Have to agree though that Turnigy packs have quite a bit of grunt to start with but lose this about a minute in whereas the gens Ace are a bit softer but hold this all the way to the beeper

Interesting stuff!

I did some digging.

The guys that put The ESR device together seem to think that although the different devices ( ESR,PL8,icharger) give different readings the results are in keeping across different batteries on the same measuring device which to me makes sense as both the optis and zippys were giving off equal (subjectice again!) power and as you observed(n the pl8) with yours they have equivilant cell IR! I think longevity may be the main advantage of the exspensive packs ( obviously warrenty too but im talking performance). I m sure you have read this before but other may not have.


A simple LiPo performance tool - RC Groups

"Of the four tools I have used to measure IR: Wayne Giles’ ESR/IR meter (the only instrument I know designed solely for our purpose), the FMA PL8 charger, and the iCharger 3010B all use the Kelvin method by measuring cell voltage through the balance leads to avoid errors caused by resistance of the battery leads and connectors. The Hyperion SuperDuo does not.

I found that the numbers are all slightly different although they are consistent across different batteries if using the same method. Based on a range of test results, my conclusion is that the ESR meter, PL8 and iCharger produce close, but not identical, numbers for IR"

So as long as you compare different batteries on the same charger you should get a correct comparison.

Im tempted to get one of these ESR jobs! Does anyone know were to get them?

[ChrisB]

Hate to say it but my Opti's are going soft too

The 6s 2700 packs get most use and are showing signs of getting a little soft but not too much of a worry. 3 out of 4 of my 5000mah packs are slightly more puffed than that.

I'm thinking of getting some Hyperions again. The ones I used in my TT360 were into 100's of cycles each ( maybe over 200 anyway ) and they were solid as a rock still when I sold them with the heli.

Horrified to say it but I flew my 500 pretty hard in this hot weather yesterday and when I removed it from the heli it was slightly puffy,28 cycles.

It went down once cooled but expect its an early sign unless it was just the heat but my Gens Aces were ok in same conditions.My Flighpower was verging on red hot but solid.

[p4ddy]

I have not tried Thunderpower. I would like to but I can't justify double the cost of optipower.

I can't justify double the cost of Turnigy for an Opti. I thought long & hard, spoke to various pilots using them & have decided i'm staying firmly put with my trusty Turnigy 25C 6s. However i still want to try one out, maybe at grass roots if someone has one i can have a flight with.

[waveydavey]

You can try my Gens Ace Paddy

[p4ddy]

You can try my Gens Ace Paddy

Bullets?? I don't do Deans

[waveydavey]

EC5's packs size 6S 3300 and 3800,s if they will fit.

[Heliben]

im in the same boat trying to decide on batteries atm, what about hyperion ? not that much ore per pack than optis