Official US Authorized Polyquest Distributor

[RC LIPOS]

RC Lipos, Inc is proud to be named the Official US Authorized Polyquest Distributor for their Lithium Polymer Batteries. Great helpful information is posted on our website for your review.

See Product Announcement thread
http://www.rcgroups.com/forums/showthread.php?p=2791759#post2791759

RC Lipos, Inc

[hoppy]

Thanks for the information. Couple of questions:

Are the common specifications "actually" common or "theoretically" common?

Can you tell us the temperatures of the packs during the 10 and 12C discharges. What size pack was used for the graphs shown?

[RC LIPOS]

HOPPY, Excellent questions and we appreciate your reply.

These are actual specification results from testing done at the factory. If one cell size performs as noted then they do not give the technical data for all other cell sizes made. Testing is duplicated for every cell size and is very consistant between all cell sizes. Polyquest has a very unique and patented way of making their cells and offers great, consistant performance between all cell sizes.

Cell sizes used....this is the same information just commented on. Testing is done on all cell sizes and because of the unique manufacturing processes one cell size to the other is very consistant. Do note that the 12C testing is done on the "N" series of cells. The standard series does get tested at 12C for quick burst, <10 seconds, and is not posted here.

Temperatures....We all know these get extemely hot especially if you are talking a continuous discharge rate. Many factors apply here. Outside temps, age of batteries, number of cycles the pack has already seen. We can simply state in excess of 100F. The temperature characteristics of polymer is very acurate from one manufacture to the next.

[Dave Hederich]

Hoppy, these are basically the same specs that Air Craft has had up on their site for some time now, but Air Craft has more detailed discharge info:

http://aircraft-world.com/prod_datasheets/polyquest.htm

[RC LIPOS]

Yes, ACW is an authorized distributor for the same products in Japan. We do value their way of doing business and the information they post. They are a great company. Nothing is stated for temperature there either but we will work on putting up some detailed temp graphs here for everyone. This is the type input we need to make every ounce of information available to all. Please keep the comments coming and we will conduct the tests and post.

[Dave Hederich]

You will find that some of the more vocal members of this forum are infinitely more interested in numbers than in adjectives and adverbs describing a product. So the more good technical information you post, in the form of discharge graphs, for instance, the more consideration you will get from these potential customers. Feedback is one thing a Li-poly manufacturer, distributor or vendor doesn't have to worry about not getting on this forum. ;)

[RC LIPOS]

Thanks very much for the information. We are going to test and post actual temperature vs. discharge rates for these cells. We will look at 1C, 10C and 12C. 1C of course is just to see the temp differences as many don't discharge at this low rate.

[Mike Wizynajtys]

These Poly Quest battery packs look interesting. I was about to buy a pair of 4S3P TP packs when I saw this thread. Are there any users out there flying one of these Poly Quest 4S 4400 mah packs?

If so, I'd like to get your impressions.

TIA,

Wiz

[RC LIPOS]

Mike, the 4400 is brand new to Polyquest and we have them presently on order in hopes to have them by mid November. Based on information from the factory you probably won't see anything yet larger than the 3100's.

[Mike Wizynajtys]

I need a pack capable of delivering 50 amp bursts (10-15 second bursts), so the 4400 is the only one I'm interested in. I like the idea of not having parallel cells and the price on your website looks pretty good too. I think I'll wait for your 4400 pack to become available.

Thanks,

Wiz

[RC LIPOS]

No parallel circuits is our goal and with the PCM you have very easy access to balance the cells if and whenever it is required. I have some chargers about ready to ship in so let me see if I can get a 4S4400 added in. We shall see if we can get this accomplished for you.

[Mike Wizynajtys]

That would be great! I'd like to try the PCM too. I'd be using my Orbit Micro Loader Pro charger. Is that compatable with the PCM?

Wiz

[RC LIPOS]

We will have factory answer later this evening due to time difference but will get back with you for sure if we can speed this pack up to you prior to getting the next shipment. Yes, you can use the Orbit charger with the PCM. We always recommend using the charger in manual mode but have not seen or heard of any problems when manual mode was not used. The important thing is to power off the charger prior to disconnecting the battery from the PCM.

[jgmtens]

Why is that important? Jon

[RC LIPOS]

If the battery isn't fully charged yet and you disconnect the battery from the PCM while still in charge mode, a high voltage rushes across the PCM blowing part of the circuit. We have only seen this occur on a Triton this far but still recommend that you either wait for the PCM to indicate end of charge or power down the charger. What is important, is not to disconnect the battery from the PCM until it is charged. If you think something is wrong with the battery during charging, shut the charger off prior to disconnecting the battery from the PCM.

[Mike Wizynajtys]

We will have factory answer later this evening due to time difference but will get back with you for sure if we can speed this pack up to you prior to getting the next shipment. Yes, you can use the Orbit charger with the PCM. We always recommend using the charger in manual mode but have not seen or heard of any problems when manual mode was not used. The important thing is to power off the charger prior to disconnecting the battery from the PCM.

That's great. I look forward to trying your products.

Mike

[hoppy]

Hoppy, these are basically the same specs that Air Craft has had up on their site for some time now, but Air Craft has more detailed discharge info:

http://aircraft-world.com/prod_datasheets/polyquest.htm

Dave,
I didn't see any life cycle test data or discharge graphs on the ACWorld site. Did I miss it? Or did you just mean there is more info there, not specifically life cycle/temp/discharge data?

[Dave Hederich]

Just a little more detailed info, but not specifically life cycle/temp/discharge data.

[RC LIPOS]

Thanks for the information. Couple of questions:

Are the common specifications "actually" common or "theoretically" common?

Can you tell us the temperatures of the packs during the 10 and 12C discharges. What size pack was used for the graphs shown?


Easier to post the temperatures as oppose to making the graph. There are slight differences between cell sizes but generally are....

At 1C discharge rate = Stayed at room temperature
At 10C discharge rate = Approx 65 degrees C
At 12C discharge rate = Approx 75 degrees C

Hope this helps. Information will be posted on the website for this information. Although 6 cell sizes tested are within these temp ranges we will continue testing all cell sizes and post the information by cell size. Smaller cells are hitting approx 5 degrees hotter than these.

RC Lipos

[hoppy]

12C = 167F
10C = 149F

What was the orientation of the cell during testing? Flat on table, standing upright, cooled with a fan?? Approximate ambient temperature in test area?

Looks good so far.....

[RC LIPOS]

Like your questions and sorry I didn't post that with the temperatures previously.
No cooling fan whatsoever and room temp at approx 69-70F.
Testing was performed in an upright position where approx 1/16" of bottom edge of cell sits in a precut slot to hold it up to allow standard air flow around the cells.
The slot the cell sits in is cut slightly wider than cell thickness so the cell leans slightly in the slot to allow some air flow in that small section too.
Sorry no photo available but I think you can understand the set up.