3. Large, easy-to-read blacklit LCD screen lets you know the charging status (state-of-charge %) and battery voltage at a glance, even in the dark! 4. Power bank function allows you to insert your own Li-ion batteries and use TN261 as a power bank to charge your portable devices on the go! 5.
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Failure to do so may cause irreversible damage to the battery. - Except for using TN261 in power bank mode, do not leave batteries in the charging slots when the AC adapter is not connected. Doing so will slowly drain the power of your batteries.
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2000mA 4000mAh or above 26650 (Li-ion) Power Bank Function TN261 can also be used as a power bank to charge your portable devices when you are on the go. Step . Disconnect the AC adapter Step from the wall outlet and the charger.
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