digital_silence
Joined: 22 May 2004 Posts: 257
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Posted: Sun Oct 11, 2020 7:34 am Post subject: Thermistor value in Logitech Harmony LiPo batteries for RCs. |
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Hi all,
Not exactly JP1 hardware question, but close enough.
If anyone owns the Logitech Harmony remote that uses the LiPo flat rechargeable battery (link below), and have a multimeter, can you please do me a small favor:
I am referring to this battery that is used across the range of Harmony models such as 785 and alike:
HARMONY BATTERY
This battery has three terminals: (-), (T), (+)
The (-) and (+) terminals are the 3.7V voltage output, and the (T) terminal is the contact of the thermistor which is connected between (T) and either (-) or (+) - more often than not, the thermistor is connected between (T) and (-)
I am asking you to measure the resistance of that thermistor.
First, please try to measure the resistance between (T) and (-) terminals (red positive mmeter lead goes to (T) and black negative mmeter lead goes to (-). I expect it to be about kohms or tens of kohms.
If that gives you the meaningless result, try to measure the resistance between (+) and (T) terminals (red positive mmeter lead goes to (+) and black negative mmeter lead goes to (T). I again expect it to be about kohms or tens of kohms.
Please write here the results of the measurements (kohms).
Thanks a lot if you can help.
Best,
DS |
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