• Note: THE BATTERY IS BATTOM TOP TYPE, , size is 70MMX 18.5MM, slightly 5mm longer than a regular 18650 battery due to its higher capacity. Please check if your device is compatible with the battery. HW usb rechargeable batteries- 3.7V lithium batteries used for flashlight, toys, headlamps and other household devices. This product is NOT sold with restricted lithium-ion standalone batteries.
• Reliable True Capacity 3500 mAh: HW 3.7V 18mm Rechargeable Battery provide actual 3500mah capacity, long-lasting and reuseable. Those batteries that claim to exceed 5000mah, their actual capacity will be much lower.
• Built-in micro USB port - easy to charge with the included 2 in 1 USB cable, no additional battery charger required, just plug into any USB port at anytime and anywhere, more than 1200 cycles, eco-friendly and save money.
• Safety Assurance - built-in integrated safety circuit protects battery from over-charge, over-discharge, short-circuit and over-heat, ensures complete safety for the battery charging
• High performance - HW 3.7V Li-ion batteries with 3500mAh capacity, support stable 3.7volt output voltage, makes the devices work more stable and lasting longer, great replacement batteries for high frequently used devices.
• [Environmentally Friendly Rechargeable 3.7v Battery] As a professional battery manufacturer, HW always adheres to the research and development of efficient and energy-saving rechargeable batteries. Compared to alkaline batteries, rechargeable batteries have over 1200cycles, low self discharge, and constant voltage, providing more stable power supply to devices. Recyclable charging for use, saving expenses and reducing environmental pollution.
• Note:The batteries were only precharged 50%-60% of capacity - Please fully charge the batteries when you get it, new battery can achieve the best performance after experiences 3-5 cycles of charge & discharge.