Brand: Xuan Li Internal resistance: customizable Net weight: customizable Package: customizable Colour: silver grey Shelf life: 1 year Storage temperature: 25℃ Charging time: 7.5h Charging voltage: 4.2V Charging current: 0.12A Whether to charge: Yes Standard capacity: 500mah Nominal capacity 500mah Factory voltage: 3.7-3.9V Customization: Yes Cell standard: IEC62133-2:217 Load voltage: 3.0-4.2V Rechargeable or not: Rechargeable 3.7V polymer lithium battery ①Comply with relevant national standards and requirements for batteries ②All finished battery products have been calibrated and tested before leaving the factory. They can be used directlyBluetooth headset, Portable speaker, Muti car jump starter, power bank, Auto cleaner, GPS tracking, Digital ADSL device, Flashligting, emergency lighting, laptop, solar board, ups power, smart phone, wireless microphone, MP3, Walk man, Cordless Phone, Notebook, Video Camera, Digital Camera, Digital Products, Portable DVD, Mobile Communication, Electronic Toys, Game Player, Solar LED light, Emergency lighting, Power tools, E-bike, Medical Equipment, etc.ISO、UL,CB,KC Product details: 1. Sufficient capacity: using domestic and foreign brand raw materials, sufficient capacity, low internal resistance, and stable voltage 2. Stable performance: long cycle life, high energy density, wide operating temperature range, stable discharge voltage Main selling point; Country of origin;experienced staff;green product;quality approvals Main export markets: Asia;Australasia；central/south America；eastern Europe；mid east/Africa；north America；western Europe.