The power adapter folds out easily for charging and storage. Smart charger can charge two at once. Suitable for 10440 14500 16340 16650 14650 18350 18500 18650. Universal micro-USB port / suitable charging current (1A / 2A). User-friendly models are convenient, especially for travel. DC 5V input safety voltage / reverse polarity and short circuit protection Flame-retardant shell / perfect heat dissipation / high temperature resistance. Makes the MC1 Plus the safest charger and ensures your safety. Cut off the voltage at 4.20V / TC-CC-CV charging method / Soft start. Avoids violent shocks and maximizes the duration battery life. Fulfills emergent uses with a 3-hour charge time. In addition, the battery recovery function maximizes battery life. Product model: BH-042100-04U Features: 4-slot independent charging Product weight: about 212g Power supply mode: normal USB power supply Input voltage: DC 5V 1-2A Output voltage: DC 4.2V 1000mA Product size: about 90 x 30 x 122mm / 2.7 x 0.9 x