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« on: October 16, 2010, 09:52:52 AM »
iamahuman
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On rcgroups,I saw an advertisement for this site.

http://www.xtremepowersystems.net/index.php

I saw one of their lipos advertised to be 6000mah but looked real small and they had some nano receivers.

Does anybody know about these guys?They sell products from Graupner ,A123 systems and Xtremepowersystems.

They look really good but  if anybody knows about them,please let me know.

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« Reply #1 on: October 16, 2010, 09:58:30 AM »
iamahuman
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Their forums on rcgroups look good but then,they are their forums.
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« Reply #2 on: October 16, 2010, 11:47:58 AM »
sharlock
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To tell you the fact flying a XPS system is like a night mare beware... this system has failed several times in big events & pilots stay away from this. The XPS has even been banned by the Jet association that no pilots allowed to fly jets using the XPS. I met a German pilot who shared his experience with about XPS. Try searching the web & you will get to now more about the XPS system.
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« Reply #3 on: October 16, 2010, 11:49:12 AM »
iamahuman
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Oh,but their forums on rcgroups looked good.So in short,stay clear from them due to unreliability.
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« Reply #4 on: October 16, 2010, 12:09:07 PM »
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They are known for their Xtremelink 2.4Ghz modules, which was one of the earlier such systems that came into the market, and boasted of large ranges.
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« Reply #5 on: October 16, 2010, 02:43:05 PM »
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But are they worth all the hype?They claim lots of stuff.How much of it is true?I don't think a lot of it is true seeing what sharlock had to say.
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« Reply #6 on: October 16, 2010, 09:31:29 PM »
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Please go through the below links which will give you an idea about XPS. I myself few years back was thinking to get this system but after reading peoples comments i moved back.

http://www.rcmodelreviews.com/xpshopping.shtml

http://www.flyinggiants.com/forums/showthread.php?t=38857
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« Reply #7 on: October 16, 2010, 10:15:47 PM »
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i moved back as well. graupner was suppose to sell the stuff in eu but it never came out on the market.

have 4 5000mah 6s and 2 3200mah 6s xps 30c and they are pretty average or below.start to lose power after 30 charges. not like hyperion that is just run in after 30 cycles
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« Reply #8 on: October 16, 2010, 10:52:34 PM »
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i moved back as well. graupner was suppose to sell the stuff in eu but it never came out on the market.

have 4 5000mah 6s and 2 3200mah 6s xps 30c and they are pretty average or below.start to lose power after 30 charges. not like hyperion that is just run in after 30 cycles

Graupner made a mistake by joining hands with XPS. Graupner has a good reputation in EU. But the good news is now they have joined hands with WEATRONIC 2.4 GHz Dual FHSS system which the BEST in my opinion, has lots of features & secure German technology 
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« Reply #9 on: October 17, 2010, 09:13:46 AM »
iamahuman
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But if these graupner guys are so good,why do spektrum,futaba,JR and airtronics cover the major radios?
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« Reply #10 on: October 17, 2010, 01:19:21 PM »
sharlock
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But if these graupner guys are so good,why do spektrum,futaba,JR and airtronics cover the major radios?

Graupner is mainly used in EU & not in the US if you see these transmitter are designed to be used with a TX tray & not hand held. I have seen in Germany almost all fly multiplex or Graupner.
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« Reply #11 on: October 17, 2010, 01:29:09 PM »
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But if these graupner guys are so good,why do spektrum,futaba,JR and airtronics cover the major radios?

Graupner is EXPENSIVE too Cheesy
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« Reply #12 on: October 17, 2010, 04:07:34 PM »
iamahuman
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Well,radios themselves are expensive.
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