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Unread 06-07-2011, 16:38
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AKA: Sam Bacon
FRC #1466 (Webb Robotics)
Team Role: Mentor
 
Join Date: Jan 2007
Rookie Year: 2004
Location: Knoxville
Posts: 93
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Re: Battery Chargers

Quote:
Originally Posted by ebarker View Post
We use this charger. It charges 10 batteries at a time, at a sweet 2 amp rate. Keeps them in good shape.

http://batterytender.com/telecomm-st...12v-at-2a.html

You are much better off buying more batteries and charging them at the ideal rate rather than destroying batteries and creating safety hazards from ruptured batteries.

BTW - on a related subject everyone should replace the alligator clips on their chargers and use Anderson SB connectors to plug into the battery.
This is what our battery cart uses. We have not had a problem with the tender. We also put the Anderson connectors on each of the ten chargers. The chargers each have their own fuse and break away point(just a bit past where the Anderson connectors/alligator clips are) which makes them really easy to take out of the cart. Since there is ten(admittedly not the fastest charger) you can go through a whole regional qualifiers with charged batteries and the ones from your first matches have had a day to charge. or quantity over speed.

Even with extra tournament tiebreakers our robot has had a fresh battery and never ran out of juice. Pit crew remembering to zip tie the connectors together is an entirely different issue