Power Supply Compatibility: DC connector dimensions are Outer diameter 3.5mm x Inner diameter 1.35mm. The 8.4V dual charging male DC jack connector works with 7.4V 2200mAh, 3000mAh, 3500mAh rechargeable lithium polymer batteries for heated mittens, hats, battery heated socks, heat gloves, liner mittens, socks, vests, jackets, and hand scarves
Power Supply Specifications: Power adapter features Input Voltage AC100-240V, 50-60Hz, Output Voltage DC 8.4V, Output Current 1000mA, and Output Cable Length 40 inches for convenient charging
Working Condition Indicators: The 7.4v battery charger voltage is 8.4 volts. When you plug in the charger and connect the battery, a red light indicates charging in progress, and a green light indicates charging is complete
Battery Maintenance Tips: Charge the battery regularly to prevent damage caused by over-discharge. When charging, avoid placing the charger on flammable items such as sofas, blankets and beds for safety
Dual Charging Capability: This replacement kit includes a dual charger that allows you to charge two batteries simultaneously, saving time and ensuring you always have a backup power source ready for your heated accessories
Universal Voltage Compatibility: The AC100-240V input voltage makes this charger suitable for use worldwide, allowing you to charge your heated gear batteries whether you are at home or traveling internationally