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20000mAh Massive Capacity - Still Compact - Double the power, same portability. This 20k mAh high-density power bank delivers up to 4 full charges for most smartphones - travel-friendly design. Perfect for long trips, business travel, or heavy usage days. Premium Lithium Polymer Battery - 80% Health After 300+ Cycles - Engineered to last. High-quality lithium polymer cell maintains 80% capacity after 300+ charge cycles - far beyond standard batteries. Invest in long-term reliability, not replacements. Real-Time LED Digital Display with Fast Charge Indicator - Know your power at a glance. The clear LED digital display shows exact battery percentage and flashes a green lightning bolt during fast charging. Stay informed, stay in control. Triple-Port Smart Power Distribution - Charge three devices at once - phone, earbuds, tablet. Advanced power-sharing technology intelligently allocates the right voltage to each device for optimal, efficient charging. One power bank, total control. Smart Temperature Control - 40 Scans Per Second - Safety first. Intelligent thermal system performs 40 temperature checks per second and over 3 million safety scans daily, keeping the device cool and safe - even during fast charging. Charge with confidence, not concern. What's in the box 1x Acefast PWRup M29 PowerBank 22.5W 20000mAh