I received a "rumor" from an unmentioned source saying that there will be a new set of TP batteries that have the weight of Prolites and the power of the Extremes. That same rumor says they may be out within the next month or two. Can anybody confirm this, or at least keep the rumor mill going? John

I've seen a few TP advertisements mentioning something like "V2 coming soon." I haven't heard any claims about what these V2 packs will feature, though. Perhaps these are the packs you are hearing about.

I should have a set of V2 10s 5000's this week for testing, will let you know how they compare with the originals. I don't know exactly how different they are, just that initial testing has shown a marked improvement over the originals.

5000 batteries with 100 g less would be a dream come true.

I dont know what the weight of the new pack is, I am not even sure if it will be correct or not. The first 5000's I got for testing last December were 25g heavier than the later production models.

I will weigh it when it arrives and let you know, but I will be very surprised if it weighs the same as a prolite.

Got the pack today, its the same physical size and weight of the originals. We will see how it performs tomorrow or Friday.

Thanks for the news Chad, we will be waiting.

It occurs to me that selecting the relevant criteria that constitute a "performance increase" is getting harder. On the basis that a Prolite powered model already has more than enough performance and the newer bateries are heavier, what do we want from them?

Personally I would like to be able to fly a little longer when practicing, although P09 is considerably shorter and will allow some extra practice manouevres with the existing cells. Lower IR will bring cooler running but here in the UK this is seldom a problem. The biggest problem I see is that cells that hold their voltage better under load effectively raise the overall gear ratio of the drive train. This means that if we don't need to draw a lot more current we need either to prop down or go to a lower kV motor. Those of us who run direct drive outrunners are severely limited in this respect as a lower kV motor isn't available and presently neither are high pitch smaller dia props.

Hopefully the motor and prop manufacturers will be prepared to develop their products along with the battery manufacturers.

Malcolm

I have about 6 flights on the pack, all flying P-07 and pulling around 4000-4300 mAh out of them. Power wise its hard to compare since I dont have any brand new original 5000's around and its been a while since I last flew a fresh extreme pack. However as best I can recall they are at least similar and possibly better power wise.

The best part is the pack seems to have a little flatter discharge profile more like the 5300's and holds balance far better than the originals. I did not get good life from my original extremes I think mainly because with those discharge levels they would go out of balance quite severely at times. Anyways I will see how they hold up from preparing for the WC's and let you all know.

As a matter of interest Chad, how does his consumption compare with the 5300s?

What were the weather conditions like for these flights - do you think that this is close to maximum consumption you will need as conventional wisdom says that 80% of capacity is a good figure to aim for?

Malcolm

Hi Malcolm

That is similar to the 5300's, whatever gain in efficiency you get from more voltage I just abuse because of the huge power

Weather, typical Canadian fall :-) Mid teens (centigrade), and fairly calm. You do draw a little less when it is warmer out. Flight time around 8:15-8:30 from takeoff to landing, 170m, so basically flying about the pace of a glow model.

Resting voltage of the packs was 36.8 ish after every flight, so I would say that this is a good max amount of discharge. However the originals did not like being treated in this way over time (that was probably mostly related to imbalance) so I need to fly these a lot more to see how they hold up to it.

I will use 5300's for P at the Worlds....I have been known to pull 4800-4900 from a pack during that sequence I may use these packs for the semi's though. The noise test can pull 200 mAh from a pack as well, so its something that has to be considered at larger events.

They should have plenty of capacity for all the 09-11 sequences.

Hi Chad,

Yes at that resting voltage I guess you are right on the limit. P09 is certainly kinder to the packs!

Malcolm

Chad, it would be interesting to see some data logger output for the new packs.

Keith B