Battery Contact Schematic?

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  • Updated 4 years ago
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Hi!  I love to know how thing work.  I was looking at the batteries and charger today and noticed there are four contact terminals on them.  +, T, D, and -.  The positive and negative are obvious enough what they do.  I am wondering, if it's not a secret, can you tell me what the T and D stand for on the battery terminals and what they do?

I could make a few guesses on what they do but sometimes it's better just to ask.  I tried to look it up but I cant find any info.  Nothing that I can see in the instruction booklet either.

Thanks!  Hope this isn't a top secret answer or something.
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Posted 4 years ago

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Official Response
T = temperature, used for the charger

D = data or discharge, used to communicate for overload and battery protection.