Why choose our smart charger?True independent charging and mixing freedomUnlike traditional chargers, our system uses dedicated charging ICs for each slot. This allows you to freely mix different models and sizes of batteries (such as 26650 and 14500) without affecting efficiency. Each battery has a customized charging curve to ensure that they are charged in the best possible way and completely independent of each other.Dynamic LED indicator light for displaying statusSay goodbye to the confusing flickering lights. Our dynamic LED indicator bar provides intuitive visual guidance. By observing the color during the charging process and checking if the charging is complete, you will always be aware of the battery's condition.Provide extensive compatibility for all your devicesThis charger is designed to support the most popular rechargeable lithium-ion battery sizes on the market:18650/26650/21700/16340/14500/18500/10400/16650/14650/18350Whether you are powering high lumen flashlights, power tools, or other professional equipment, this charger can meet your needs.Quick and battery life awarenessWe value your time. The integrated fast charging technology greatly reduces downtime. More importantly, when any battery reaches full capacity, our intelligent system will automatically stop charging. This key function can prevent overcharging of the battery and maximize its lifespan.Specially designed for peace of mindThe built-in reverse polarity protection function is like a foolproof network. If you accidentally reverse install the battery, the charger will automatically disable that specific slot, eliminating the risk of short circuits or damage. Simply adjust the direction of the battery, and charging will immediately resume.Cheer up with confidence!Upgrade your charging settings with devices that combine intelligent technology with powerful features. Get reliable, fast, and clear charging for your entire collection.2-slot,4-slotABS