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Then I'll bend my head in shame
![]() Never checked myself before, but several experienced guys claimed this, both for IFMAR and ROAR. See previous discussion: http://www.one-ten-rcforums.com/4wdr...ic.php?id=1333 Quote from Chazz (X-Factory): "There's an IFMAR requirement that you have 6 cells, so at the Worlds everybody just put another solder tab on the 5th one." Quote from SupahDave: "You have to run 6 Cells per ROAR rules." Might this have been changed for 2008 then? In any case it's the rules now, so I apologize! ![]() Has anyone heard anything as to IFMAR allowing LiPo? Edit: More on ROAR rules: It actually looks like the americans didn't read their rules properly. In the ROAR Rules 8.3.1.12 it says "Unless a lower number is specified in the class requirements, a maximum of six NiMH NiCad and 2 Lithium type cells is permitted in any vehicle motor power pack used in ROAR-sanctioned competition." ROAR rule book: http://www.roarracing.com/downloads/..._Rule_Book.pdf 8.10.1.3 for 1:10 OR also specifies this: "Six cells maximum" See 8.3.2 for LiPo rules: -there are some "UN" criteria (transport safety regulations) -ROAR testing & approval (drop, overcharge, short circuit) -must be hardcased from ABS plastic or similar material -case halves "sealed" with ROAR approval label (you are not allowed to open it) -2 cells in series -3,7 V pr. cell Charging rules (ROAR): -charger with LiPo program (of course) -must have LiPo inside "LiPo Sack" (or similar) when charging (to mitigate fire) -max 1C charge rate Note! There's nothing to gain performance wise from charging LiPos at a higher rate than 1C!!! You ONLY save time, and it may be damaged! To my surprise they may be damaged by being stored fully charged for more than a month. It's advised to store them 1/2 full... The ROAR rules are VERY detailed and would be a very good place for EFRA to take their initial rules from! This is the list of approved LiPo batteries: http://www.roarracing.com/approvals/lipobattery.php
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