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I use this keyboard over 50 hours a week for the past 2 months and I haven't had any problems yet. The battery is extremely long lasting in my opinion for a wireless device.
Sorry, there was a problem. Please try again later.Bought 6 months ago and still on factory battery
Sorry, there was a problem. Please try again later.They last a long time, possibly longer than a year based on average (couple hours a day) keyboard usage. No need to replace the batteries until the keyboard becomes unresponsive. The batteries last so long that you should check them every few months or so to make sure they are not leaking!
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