Waterproof Battery Pack Case for 6x18650 Batteries, XP7 Waterproof 8.4V Lithium Battery Box with USB 5V/2A Output and Power Display for Bike Light Smartphone

Features: The 18650 waterproof battery pack is mainly optimized based on the traditional 18650 8.4V lithium battery pack.This battery box has the XP7 waterproof function. Suitable for kinds of context of use.Do not use spot welding battery, which can greatly reduce the internal resistance of the battery and improve the battery discharge performance, thus effectively improving the battery life.Easy to use, this battery pack can use two or four or six 18650 lithium battery according to your needs. Have DC connector input and output voltage 8.4 V.USB connector output voltage 5V, current 2A, equipped with charging function of mobile phone. Supports power display function.Specifications: Condition: 100% Brand New and High Quality Material: Plastic Color: Black Size: Approx. 8.7 x 6.5 x 4.5cm / 3.4 x 2.6 x 1.8inch Waterproof: XP7Over-charge Protection Voltage: 8.4V Over-discharge Protection Voltage: 5V Current Over-discharge Protection Voltage: 9V Awaiting Current: below 10ua USB Output Voltage: 5V+/-0.2 USB Output: Max. 2100mA Weight: Approx. 200g Packing List: 1 x Battery Case 1 x Strap

• XP7 Waterproof Protection: This waterproof battery pack case features an XP7 rating, making it ideal for outdoor adventures like cycling in rain or hiking near water. The sealed design keeps your 18650 batteries dry and safe from dust, mud, and splashes, ensuring reliable power when you need it most.
• Dual Voltage Output: The 18650 battery box delivers both 8.4V DC output for bike lights and 5V/2A USB output to charge smartphones or other USB devices. Whether you’re lighting your or powering your phone on a trail, this versatile battery pack meets multiple power needs seamlessly.
• Flexible Battery Configuration: Use 2, 4, or 6 standard 18650 lithium batteries in this battery case based on your runtime needs. Perfect for cyclists, campers, emergency kits, or outdoor photographers who require customizable, long-lasting power without spot-welded cells that increase resistance.
• Durable Plastic Construction: Made from high-quality black plastic, this 18650 battery pack case is lightweight yet rugged enough for daily outdoor use. Its compact size (3.4 x 2.6 x 1.8 inches) fits easily in backpacks or mounts to bike frames with the included strap for convenient access.
• Smart Power Monitoring: Built-in power display shows remaining battery level so you never get caught off guard. The 18650 battery box also includes over-charge, over-discharge, and short-circuit protection for safety. Package includes 1 battery case and 1 mounting strap for immediate use.