tjwarney Posted March 8, 2017 Report Share Posted March 8, 2017 Just got my Sonnet rechargeable batteries today. Was reading the manual and it states they only last 4 hours. Is that true? My Opus 2 rechargeable last around 13 hours. If the Sonnet only last 4 hours that would mean you would have to carry at least three to get though the day. Quote Link to comment Share on other sites More sharing options...
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