I have a 3.7v Li-Ion battery that I bought for my Sony MZ-R30 almost a year ago. It is of course an aftermarket battery, but it has twice the capacity of the original Sony battery. Figured for $17, and the great reputation of the seller, I would take the chance.
Anyway, I hadn't used the minidisc unit in months, so when the battery started to get low, it turned off. No suprise there. However, I found that when I plugged the adaptor into the unit, the battery would not start charging. Took the battery out and put it back in, the LCD wouldn't even flicker. Took a multimeter to it and it showed 0 volts. Changed the multimeter to ohms, the resistance was REALLY high....up in the k's. The unit couldn't possible drain the battery to 0 volts!
I decided I had nothing to lose and took a 3.6v 14500 battery and ran the terminals to the battery for about 2-3 seconds. Now the li-ion battery is showing 3.2 volts! Popped the battery back into the unit and it's charging perfectly now.
I've only charged this battery twice since I bought it.
What the heck happened here?
Anyway, I hadn't used the minidisc unit in months, so when the battery started to get low, it turned off. No suprise there. However, I found that when I plugged the adaptor into the unit, the battery would not start charging. Took the battery out and put it back in, the LCD wouldn't even flicker. Took a multimeter to it and it showed 0 volts. Changed the multimeter to ohms, the resistance was REALLY high....up in the k's. The unit couldn't possible drain the battery to 0 volts!
I decided I had nothing to lose and took a 3.6v 14500 battery and ran the terminals to the battery for about 2-3 seconds. Now the li-ion battery is showing 3.2 volts! Popped the battery back into the unit and it's charging perfectly now.
I've only charged this battery twice since I bought it.
What the heck happened here?
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