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This is a great example of a case where you can teach your team about the process of making educated engineering decisions. In industry, we call the process of making decisions like this a "trade study". Please try to incorporate this as a powerful learning experience.

http://firstlegoleague.org/mission/corevalues

Best of Luck!
Bill

On Tue, Nov 6, 2012 at 10:46 AM, Moenings <[log in to unmask]> wrote:
I noticed the day of the tournament we made so many revisions and practiced so much that the robot was dead by the time of the match. Luckily we had a second robot with another battery.  But the stress of changing it at the last second was nerve racking. This year we are avoiding this by using AA batteries.

Patty

On Mon, Nov 5, 2012 at 9:14 PM, John Barrett <[log in to unmask]> wrote:
It is not uncommon.  My experience has been that when the battery starts to die, it's time to replace it.  FWIW, our annual FLL budget now includes the funds to buy a new battery each year.

John

-- 

John J. Barrett
Industrial Medium Software, Inc.
1616 Anderson Road
McLean, VA 22102

(c) 703-231-5094
(p) 703-286-0818
(f) 703-286-0888

http://www.industrialmedium.com



On Nov 4, 2012, at 10:34 PM, Savita Sethi wrote:

Dear all,
Our team is having issues with the rechargeable battery pack. This is the second season with the same set and they are noticing that it is losing battery too quickly and within minutes of practice it drops by 0.5 almost and they are requesting that we buy a new pack and replace it. Ofcourse this will need rebuilding the entire robot and we are 5 days from the tournament. We are going to order one soon. 
Has any of you experienced this? Is this normal after two years of use?
Need advice.
Thanks
Savita
 
 

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