Talk:DEWBOT XII Mid-Atlantic Robotics District Championship

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Post-Mortem

Battery Testing

In spite of the fact that we test all batteries with a Battery Beak before competition, we had a battery failure at Westtown (battery AD) and a more complete one at MAR Championship (battery AF) where we just managed to crawl to the batter at the start of the match.

We tested all competition-rated batteries 18-20 April using the CBA (Computerized Battery Analyzer) III by Optim Engineering (marketed and sold by West Mountain Radio).

Battery test 160418.jpg
The data collected on the batteries is here:

And the CBA III performance charts:

CBA III graph.jpg

Three batteries were removed from service as a result of the testing: AD, AE & AF. Note that AC had previously been removed from service. The batteries AC-AF all entered service in 2014 and came from two consecutive orders of two batteries each. With the exception of these four batteries, the only other gap in our in-service batteries is "V" from 2013. "U" is the oldest battery in service (also from 2013). This makes the AC-AF group look as if it may originate from a manufacturing QC lapse.



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