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I've heard of batteries on fire in a match. I've seen batteries fall off bots during a match. But I've never heard of a battery ending up inside another bot during a match. Until now. 
Here's what happens when the Velcro used to secure backup batteries fails during a match. (Vex batteries were legal to use as FRC backup batteries under the 2006 rules.) This battery fell out of our robot, went through the drive train, landed on the field, and was unintentionally sucked up by 176's bot.
Now I have to break the news to our FVC team that they are down a battery... 
16-10-2006 02:24
Eldarion
The question is, does it still work?
16-10-2006 07:56
Ben Piecuch
We're not taking a chance to see if it works or not. The outside casings of the cells were pretty well scratched and cracked. The external leads were clearly ripped off. It was, however, a very good learning experience for some of our new members.
Now, if we could only explain the huge dent we received on the corner of one of our exide batteries. As one would imagine, the play at Bash got a little rough this weekend.
BEN
16-10-2006 09:13
Tapoore
I remember seeing this happen! I couldn't tell what it was until after the match, because it didn't look like a regular frc 7.2 V backup.
16-10-2006 09:35
KenWittlief
Your technology and components will be assimilated into the 176 Robot Collective
Resistance is futile
(Capacitance is highly desired :^)
BTW: you must mount that battery on a plaque and present it to team 176 - gaining possesion of another teams battery is a feat that demands recognition
16-10-2006 14:39
Elgin Clock
At first when I saw it dangling from the robot before it fell off I mistook it for the Radio. But then I was thinking wait a minute, the radio isn't usually blue.
Only when Art showed me the battery right after the match was I both amused, and shocked to see what happened to it.
Use stronger Velcro next time; right Art?
As a side note, these batteries are much heavier (maybe 2 times the weight) than the normal backup batteries hence it falling off under the weakened Velcro it was attached with..
16-10-2006 14:41
KenWittlief
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Originally Posted by Elgin Clock
Use stronger Velcro next time; right Art? ...
.. |
16-10-2006 15:20
bear24rwAre you sure the vex batteries were legal?
16-10-2006 15:25
JamesBrown
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Originally Posted by bear24rw
Are you sure the vex batteries were legal?
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16-10-2006 17:12
Elgin Clock
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Originally Posted by KenWittlief
[cough] Tiewraps [/cough]
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16-10-2006 17:49
chris31That battery is pretty beat up.
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Originally Posted by JamesBrown
All 7.2v batteries are legal. You should definitely look into buying something other than the one in the kit, RC car batteries will not drain anywhere near as quickly.
James |
16-10-2006 18:50
artdutra04
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Originally Posted by chris31
So ANY 7.2v battery is legal?
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Originally Posted by 2006 Game Manual, Section 5, Page 18
<R68> The 7.2V Robot Control backup battery must be connected to the Controller as described in the
Controller’s manual. The 7.2v battery should be charged to at least 7.0v before entering a match. As a replacement for the FIRST supplied battery, any other 7.2V NiCad battery pack may be used. |
16-10-2006 19:01
AdamHeard
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Originally Posted by bear24rw
Are you sure the vex batteries were legal?
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16-10-2006 19:26
Qbranch
I have an old 7.2v racing pack that dragged on concrete for a few hours... wires still on it but all the insulation and part of the nickel gone off the end
I'll have to take a pic and submit it.
-Q
16-10-2006 19:49
chris31Thanks for the info on the battery guys. Now I know I can use my old airsoft gun battery for this. http://www.onlybatterypacks.com/show...ItemID=10518.3
16-10-2006 20:58
NitroxextremeThis picture reminds me of when our battery cover came of at Monty Madness and was ran over both by us and 1089.
Sorry no pictures...but it was completely destroyed
16-10-2006 21:49
Tim Arnold
In regards to the backup battery not being the kit one... we used the standard kit backup battery and was also velcro-ed on the underside of our bot. Despite it falling out frequently, the size or lack of it was not really a concern due to our recharge circuit. The robot didn't care, it just kept running like nothing happens. Same thing if the backup battery went dead (which it wouldn't, it would be charging the entire time)
.
21-10-2006 22:43
Kristian CalhounIt turns out that this cannot happen only in VEX. At Duel on the Delaware today, at the end of one match MOE's back-up battery fell off when they were climbing off the ramp, and landed in our drive train. Fortunately, the battery didn't get destroyed, and was still usable. 
21-10-2006 23:08
Jeff K.
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Originally Posted by artdutra04
As long as it's a NiCad 7.2v battery, it's legal.
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22-10-2006 14:46
Athleticgirl389
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Originally Posted by calhounian
It turns out that this cannot happen only in VEX. At Duel on the Delaware today, at the end of one match MOE's back-up battery fell off when they were climbing off the ramp, and landed in our drive train. Fortunately, the battery didn't get destroyed, and was still usable.
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