Portable Fast Charger 30000mAh Power Bank Dual USB External Battery LED Display

Battery Capacity: 30,000mAh (Lithium-Polymer or Lithium-Ion) Input Ports: Micro USB (5V/2A or 9V/2A) USB-C (may support both input/output on some models) Output Ports: 2 x USB-A (5V/2.1A or higher, depending on fast charge protocol support) (Optional) USB-C output (if available) Charging Time: ~8–12 hours (depending on charger and input current) Fast Charging Support: Yes (commonly supports QC 3.0 or similar) Display: Digital LED display showing percentage (e.g., "100%") Dimensions: Typically around 140 x 70 x 25 mm (may vary) Weight: Approx. 400–600g Material: ABS plastic or aluminum alloy (depending on model) Safety Features: Overcharge protection Over-discharge protection Short-circuit protection Temperature control Compatibility: Universal – works with iPhones, Android phones, tablets, smartwatches, Bluetooth headphones, etc.