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Voltage question
I have a voice recorder that uses 2 AAA batteries.
I only get about 8 hours of recording out of the 2 batteries and I would like to attach a power supply by soldering it to the battery terminals. How many volts can I apply to the device without frying the circuits? The configuration of the batteries are as follows Top of device + - | | | | | | | | | | - + |
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