Sell sup✇18650 Battery Pack Power Bank Case 8.4V DC + 5V USB Output for Bike Light best price

18650 Battery Pack Power Bank Case with 8.4V DC + 5V USB Output for Bike Light Headlamp Phone Feature: Please install the battery according to the positive and negative marksto avoid damage to the product. Mainly used for headlights. Bicycle Light. Power bank, 18650 charger. Use 5V / 2A adapter to charge according to the battery capacity size about 5~8 hours full. When not in use for a long time, take out the replacement battery. Press and hold for 3 seconds to turn on 8.4v. Automatic shutdown When the 8.4v works, the display indicator will automatically shut down after 10 seconds. Short press to open 5v. 5v and 8.4v can be output simultaneously. 5v and 8.4v can be output simultaneously. This is a really great product, including lighting, power bank and charger function. Specification: Input: 5V / 2A USB Type-C, Micro USB Output: 5V USB, 8.4V DC (can be output at the same time) Material: Flame-retardant material shell Capacity: support 4 18650 batteries (battery NOT included) Display: indicator Use: bike lights charging, lithium battery charger Size: 87X84X25mm/3.43x3.31x0.98" Net weight: 136g Packing: color box Protection: overcharge and overdischarge protection Note: 1. There may be slight size deviations due to manual measurement, different measuring methods and tools. 2. The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor. Included: 1 X Battery Pack Case (No Battery)