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I have 4 batteries that are no more than 6 months old. When I use them in my pico they drain quickly and I have to replace twice a day but if I use on my girlfriend's pico they last a lot longer, around 2 days. Is mine just broken?
Give the inside of the battery cap and the threads a good clean, and if there is there a spring in the cap pull it out and give it a good clean to. Dirty contacts cause a voltage drop and can make the mod think the batteries are lower than they are.