Instruct: Classify an Amazon review as either positive or negative.
Query: Innovage Battery Free Crank Radio

The battery free portion of this radio failed to work for more than two minutes at a time after cranking for nearly one half hour. When placing batteries in the radio, it works fine, but it defeats the main purpose of an emergency radio when no batteries are available. I had to remove the Ni-MH storage batteries and replace them by re-soldering them in place. This is my second one of these radios, the first one works just fine.