Has anyone tried Hyperion LCX 5350 Lipo? From the information and the spec, it seems to be very similar to FP 5350 or PQ 5350, and it could also be from the same factory that produces the PQ Lipo's (although I am not certain about this, but sure appears to be). In any case, since the price is much better, if anyone can provide some first hand experience, it would be very helpful in purchasing decision.

TIA,
Kevin

FP 5350 and Hyperion Cx 5350 are the same ....Enerland cells

Thank you for the input. Hopefully they have the similar permance and lifespan as well.

Have you by any chance used them before?

Thank you,
Kevin

Hmm---interesting....
Just looked up the Hyperion specs----a 5S pack weight is given as 588 grams.
So two would be 1176.
Just weighed one of my (5S x2) FP 5350 packs...
1154 grams---including two 6mm connectors,a soldered connection, and some velcro.

Just a thought,if you're near the 5Kg mark....

And I just weighed my FP 5350 F3A pack, total weight 1218 grams, with leads and plugs.
(This is how it came when I ordered it.)

Regards,
Magne

Curious? Perhaps not---I shortened my leads quite a bit.
My other pack (still FP 5350) weighs 1161 grams:

Where is a good place to buy these Hyperion packs?

Magne

Magne,

I was thinking to get mine from All e RC, and their link is here: [link=http://www.allerc.com/product_info.php?cPath=3_4_93&products_id=3183]LCX 5350[/link]

Kevin

Good price for the Hyperion pack - $203!

sorry for the slow reply. I've just laid my hands on two sets of the CX5350 for the coming season so I have no experience with the Hyperions CX 5350 as of yet. Last year, I tried Hyperions VX 5000 ( heavy, but durable, 25 C cells ) and I know others that are using FP 5350 with good results, i.e. more than 150 flights !

Hyperion comes from this "source" http://www.hyperion-eu.com/howtobuy/

All the best

I use a mixture of FP and Hyperion packs in 3S, 4S and 6S and found their performance to be the same - excellent in all cases. I've also used a Eagle Logger on my TRex 600 on both brands using 6S 5000 packs and the graph plotted is very close so I have no doubts about their ability to perform.
I've just bought a set of Hyp LCX 5350's for my Integral which I'm building at present. My only concern is that the Hyp packs are rated to 16C whereas the FP ones are rated at 17C, I don't know why?? Still, as pointed out above they are considerably cheaper, if all goes well it means I can afford four packs for roughly the price of three FP ones (in Australia at least).
I bought this set of packs from www.aircraft-world.com who have excellent service and they took four days to get from Japan to Australia. The weight of these packs was 1177gms (589+588), with balancing leads but no Deans connectors.

Hi all,
I have been flying elecrtic now for just on a year, and have only used the Hyperion Packs... I started off with the VX 5000 which as stated before are 25C And they are fantastic...done over 200 flights between the two of them so far and no sign of slowing down. They are unfortunately about 100g heavier than the 5350's which I had to use when I was at the W/C in Argentina last year, as I wouldn't have been under the weight limit with the 5000's ( My Beryll was processed at 5Kg dead - no room for error!)
The only difference I can feel with the 5350's VS the 5000's is that the 350's run hotter during the flight than the 5000's ... and this I would put down to the C rating. After one contest schedule, I would typically put in about 3000mah, although in the strong cross winds that were blowing during the W/C, I was putting in about 3600mah per flight.
With the new P09 schedule, I am putting in between 2800 and 3000mah per routine, so I am thinking of trying the VX4350 packs, which are also 25C and should run cooler.
Sorry I can't give you the weights of the various packs, but I left my scale at the office... however the previous posts seem to be on the money.
Feel free to ask any other questions about the use of the HP packs, but as stated before, irrespective of the cost, I am very happy using the Hyperion range of batteries.

Marc.

Hi Marc,
What routine do you use to maintain your packs? I've read that you should store them at 50% capacity when not in use for any more than a week.
I would appreciate your thoughts.
All the best, Simon

Hi Simon,
That is the recommended method of storage, however, the way I opperate is as follows... after a practice session, I will charge up my packs (keeping a log of every charge and all the relevant details of the charge - Hyperion 1210i chargers) in antissipation for the next days practice. I try and get out at least 3 times during the week and then the weekend ...more if just before a big comp, however, the weather in Cape Town can sometimes prevent me from flying for a week or so. In this time the packs are at full charge, and I do not discharge them, as we never know when the weather will break and give me a chance to get out to the field. If they are srtored at 50%, it would take about 2 hours to get them all up to full and by then the weather may close in again.
So far, this proceedure does not seem to have affected the batteries, however this has not occured very often. Just for intrest sake, my last traning session was cut short before the W/C, and to prevent me doing something stupid to the aircraft before leaving, I had a 3 week layoff before setting up in Argentina. I thought that I had better "top up" the lipo's befor my first flight, only to find that less the 80mah was put in, so I didn't even bother with the other sets.

Regards,

Marc.

Thanks Mark, very interesting. I must confess I find the logic of partially discharging packs unclear and would like to understand it better. Do you know of any good references for this subject?
All the best, Simon

Here's a chart of Li-Po deteriation during stoarge at vaious temps and states of charge. Link - http://www.vapextech.com.hk/product-...kthrough2.html

Storage temperature and charge

Storing a Li-Po battery at the correct temperature and charge makes all the difference in maintaining its storage capacity. The following table shows the amount of permanent capacity loss that will occur after storage at a given charge level and temperature.

It is significantly beneficial to avoid storing a Li-Po battery at full charge. A Li-Po battery stored at 40% charge will last many times longer than one stored at 100% charge, particularly at higher temperatures.
If a Li-Po battery is stored with too low a charge, there is a risk of allowing the charge to drop below the battery's low-voltage threshold, resulting in an unrecoverably dead battery. Once the charge has dropped to this level, recharging it can be dangerous. An internal safety circuit will therefore open to prevent charging, and the battery will be for all practical purposes dead.

In circumstances where a second Li-Po battery is available for a given device, it is recommended that the unused battery be discharged to 40% and placed in the refrigerator or freezer to prolong its shelf life. Batteries should be allowed to completely warm to room temperature over up to 24 hours before any discharge or charge.
Permanent Capacity Loss versus Storage Conditions
Storage Temperature 40% Charge 100% Charge
0 °C (32 °F) 2% loss after 1 year 6% loss after 1 year
25 °C (77 °F) 4% loss after 1 year 20% loss after 1 year
40 °C (104 °F) 15% loss after 1 year 35% loss after 1 year
60 °C (140 °F) 25% loss after 1 year 40% loss after 3 months

Thanks Wingster, that is great info and a very useful resource. I use a Hyperion 0610iDUO charger and set capacity to 50% (I'll change this to 40% now),

Does the same principle apply to LiIon packs? I use Powerbox Digi-Switches and simply leave them afer a day's flying on the basis that the switch draws a small current all the time so they are discharging constantly when being stored. I just top them up the day before I go flying or when I get to the field. What do you think?

Here's a link for Lithium Ion storage. Basically the same as Li-Po. Store at 40% charge and 0 deg C if possible. I'm just about to take my Li-Po batteries out of the refrigerator as flying season around here is just getting going. That'll make more room for beer!

http://www.batteryuniversity.com/parttwo-34.htm

Brilliant info Wingster, I've put a link to this on our Pattern site - thanks.

Twoturnspin

My pleasure.

Flight Power 5350 17C continuous (90A) 28C burst (150A) 48mm x 142mm x 45mm, Factory matched 10 cells
Hyperion 5350 16C continuous (85.6A) 25C burst (133.75A) 48mm x 139mm x 50mm, factory matched 5 cells per

Strange to have different ratings for the same cells.. Or maybe they're not..

C

Hi Wingster,

It appears that the main difference between you guys and us down here in the Southern Hemisphere, is that we get to fly all year round and a bad month at the field is one where you loose a weekend!
Down here we fly so often that it would be totally impractical to "freeze" our batteries between weekends...(We need the space for beer)

Thank for the great info,

Marc.