[NSRCA-discussion] HV pack question about Nats voltage checks.

[Joe Lachowski]

Battery checks on the flight line are really a waste of time. I did the checks at the 2011 Worlds in Muncie. A random cell count is all that is needed just to make sure no one is using 11 or higher cell count packs. HV packs are now legal too.


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From: mups53 via NSRCA-discussion<mailto:nsrca-discussion at lists.nsrca.org>
Sent: Friday, June 12, 2020 8:21 PM
To: General pattern discussion<mailto:nsrca-discussion at lists.nsrca.org>
Subject: [NSRCA-discussion] HV pack question about Nats voltage checks.


So here it goes.
This has been wearing on me since the Nats last year.
 Let me start by saying that I market the 5S HV packs. A 10S pack is capable of charging to 43.5 volts. The rules say the legal limit is 42.99 volts. Capacity increases on the 5100 10S in the neighborhood of 500 mAh with the added volt. That's consistent and quantifiable on my Power Lab chargers. So the added capacity is significant. In my case needed because I had a weight issue and was using the lighter 5100 packs instead of the 5800 packs I normally like in competition.
 So here's the issue. At the Nats HV pack users were identified and voltage checked before each flight. Non HV pack users no check needed. The ID process was to look at the label on the packs. So I have labels for our packs that say they are HV. I also have labels laying around that don't say HV. Albeit they say Gator Power packs instead of Power Unlimited HV. Anyone could easily dupe the system by putting a false label on an HV pack if that's the only criteria in place.
 In fairness I believe all packs should get checked on the ready box. Every single fliers packs or don't check any. Or we could use an honor system which by all means I and I hope others would adhere to thus eliminating the need to check.
 I hope to hear opinions on this and that it changes how it's being handled now.

Thanks, Mike Mueller


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