About This ItemWe aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it. See our disclaimerDescription:Battery Charger 18650 Lithium-Ion Battery Charger Rechargeable Battery Charger 4 Slots Cell Charging Adapter,Intelligent Universal ChargerThis USB 4 slots battery charger features 4 slots that make you can charge 1 to 4 batteries. Capable of charging 4 batteries simultaneously.Each of the four battery slots monitors and charges independently.The USB 18650 battery charger features LED indicator lights on each slot, let you can easily know when the battery is fully charged.The 18650 battery charger features reverse polarity protection and won't overcharge the battery, which can prolong the battery's lifespan.Automatically detects battery status and selects the appropriate voltage and charge mode.Automatically stops charging when complete.Features reverse polarity protection.Designed for optima l heat dissipationThe 4 slots battery charger is suitable for many types of batteries and is small, compact, convenient to carry or store.The battery charger can be connected to a USB port, easy to be powered. It is convenient and practical to use.Specification:Material: Plastic.Color: Black.Size: 90*30*122mm.Input: DC 5V 1-2A.Output: DC 4.2V 1000mA.Compatible battery: 10440,14500,16340,16650,14650,18350,18500,18650.NoteThere might be a bit color distortions due to different computer resolutions.There might be a slight errors due to different hand measurement.Don't not use on outdoor and humid condition.If it is not charged, it may be that the battery is full, aging, short-circuited, reversed,loaded in a normal battery,and electrode is dirty.**Batteries in listing photos and illustrations are NOT included**Package included:1* Battery charger.Charging made easy - So many features built in to a robust device. The Universal Battery Charger can power up