“I'm now on My 3rd set of these, otherwise, wonderful RS175 headphones. Same problem: The charging light does not change from red to green, even after 20 hours of uninterupted charging. A meter check of the battery voltages after 20 hours is 1.4 volts.”
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On my brand new set the charge lite took about 30 hours to turn green. Took the batteries out and they read 1.4 volts instead of 1.2 volts which is the normal voltage for Nimh batteries. Took the batteries out to return the set and found that the battery in left earpiece had leaked. I think it was damaged due to overcharging.
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