Did a 2 week hunt in Colchester, England in October with my Deus. Hardcore, non-stop detecting from about 7:30am to 6:00 each day with a 30 minute break for lunch. I noticed around 2:00pm each day the bar indicator for the coil was down about half but performance still seemed strong. I had the "emergency" AA charger with me but never used it. Each evening I would recharge the coil, headphones, and remote, which usually took just over an hour.
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