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Unread 14-02-2010, 14:03
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kmcclary kmcclary is offline
Founder 830/1015;Mentor 66/470/1502
FRC #0470 (Alpha Omega Robotics)
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Join Date: Aug 2001
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Location: Ann Arbor, MI
Posts: 491
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Re: Spare Classmate Battery Sources, Charging Externally

Quote:
Originally Posted by Mark McLeod View Post
Battery Pack: E09-2S4400-G1L3
I don't know of an external charger for it. Any charger would need the same specialized connector.
Thanks for the P/N. <Googles> Hmmm... No hits on that number. Are you sure it is the correct one?

(But I DO see that in under one hour from posting, Google has ALREADY indexed -THIS- CDF thread, talking ABOUT the battery! <LOL>)

RE an external charger: Hey, we build "stuff" all the time, so a connector or charging FRAME can always be fabbed or faked.

The trick will be in making sure your Universal Charger TRULY understands the pack assembly and cell configuration, so it doesn't trash the battery trying to charge it.

Examples: With many modern battery packs, you often have to watch out for things like: a "Smart Part" (Battery Manager Micro) hiding inside, extra cell temp monitor or cell balancing wires, or specialized rituals and circuits to properly charge it.

- Keith
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Keith McClary - Organizer/Mentor/Sponsor - Ann Arbor MI area FIRST teams
ACTI - Automation Computer Technologies, Inc. (Sponsoring FIRST teams since 2001!)
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