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The Nitecore UM2 Charger is an intelligent and smart USB dual-slot charger that will change the way you charge batteries. The UM2 has QC (Quick Charge) input that enables a total max output of 3A (3 amps) so that you can realistically charge a single 3,500mAh battery up to 80 percent in 2 hours in one slot. You will be able to charge batteries quickly and put them back to use just as fast with the Nitecore UM2. This charger has the capability to charge two batteries simultaneously while controlling both of the slots independently, meaning that you will be able to see how much charge your batteries get without worrying about any discharge making your batteries last much longer. The Nitecore UM2 will automatically detect your battery's charge level and provide appropriate voltage and charging time to ensure the safety and longevity of battery life.
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