... with 5W9V, dimensions: 335×190×20mm, lifespan: 15 years Portable power supply box: 1 piece Inbuilt lithium battery: 4000mA/3.7V ... : 5.5V450mm 2 Ways Charger dimensions: 125×70×15mm AC adapter: Input AC110-230V, output DC5V/1A, with 1 USB cable ... ) input for the inbuilt rechargeable lithium battery, multiple choices for power input and storage, such as: solar panels, car charger, AC ...