The batteries aren't able to provide the full (1.9-or-so) amperage, at
the voltage required by the VX-5. The voltage drops when you key up,
and the VX-5's safety disconnect shuts down the radio.
So wiring two of the batteries in parallel (for extra current) would be a
good fix until I have the funds for some better batteries?
-Josh
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Remove the reversed "nospam" in the address.