JAYM Ultra Compact 4000 mAh Keychain Power Bank Black - Bulk for Customization

The JAYM Ultra Compact 4000 mAh Keychain Power Bank is the perfect portable charging solution for on-the-go lifestyles. Designed to fit on your keychain, this ultra-compact power bank ensures you never run out of battery. With a 4000 mAh capacity, it provides a reliable backup charge for smartphones, tablets, and other USB-powered devices. The sleek black design and durable ABS plastic construction make it both stylish and resilient. This bulk version is ideal for customization, making it a great promotional item or corporate gift.

Advantages

Ultra-compact and lightweight design easily attaches to keychains for ultimate portability. The 4000 mAh Li-Po battery offers sufficient power to recharge most smartphones once. Built-in LED indicator shows charging status at a glance. Comprehensive protection features safeguard your devices against overcharge, over-discharge, overcurrent, and short circuits. Includes a Micro-USB charging cable for convenience.

Suitable for

• Smartphones and tablets
• USB-powered devices
• Travelers and commuters
• Promotional giveaways and corporate gifts

Key specifications

• Battery Capacity: 4000 mAh
• Battery Type: Lithium Polymer (Li-Po)
• Input: Micro-USB, 5V/1A
• Output: USB-A, 5V/1A
• Number of Output Ports: 1
• Color: Black
• Form Factor: Keychain / Ultra Compact
• Material: ABS Plastic
• LED Indicator: Yes (Charge Status)
• Protection Features: Overcharge, Over-discharge, Overcurrent, Short-circuit
• Charging Cable Included: Micro-USB
• Charging Time: Approx. 4-5 hours (with 1A input)
• Certifications: CE, RoHS

Recommendations

For optimal performance, use a 5V/1A charger to recharge the power bank. Avoid exposing to extreme temperatures or moisture. This product is bulk packaged for customization; please contact us for branding options.