I was planning to buy new batteries for this EF1 racing season since our current batteries are getting tired. I was going to get 3 of the spektrum 3200mah 100C batteries since these seems to be popular lately. The only one's available that I could find are the G2 version that doesn't have the balance plug. While discussing with another EF1 pilot I learned that these batteries,
the ones without balance plug, are not legal for NMPRA EF1 competition because they exceed the (reduced) weight limit for batteries without balance plugs but the ones with the balance plug do meet the weight requirements for batteries with balance plugs. It was brought to my attention that this is also mentioned on page 2, 2nd post, of the Electric 424 Q500 thread in general discussion. (
viewtopic.php?f=1&t=6761&start=15 ) Glad I found this out before buying ~ $300 worth of batteries (and a new charger specific for those batteries) that we could not use for racing.

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Bob