Power pack Input:DC5.0V+0.2V;max 1000mAh Output:DC5.0V+0.2V; 2600mAh Model: PB2600The battery capacity: 2600mAh/3.7V.The input voltage: DC5.0V ±0.2V; max 1000mAhThe output voltage: DC5.0V ±0.2V; 4000mAhCycle Life: ≥500 The product size: 115 x 66 x 25 mmThe charging time: about 5 hours ( depending on the charger power .)4 LED lights indicate: 25%, 50%, 75%, 100% Accessories : USB cable, 6 different connectors.The shell material: bright light scratch resistant UV surface treatment of plastic shellCover color:  white, blackLatest polymer lithium A-grade batteries, Auto end output within 4 seconds when connectionless, The single USB output, 1A, fast and efficient. One key operation, hold 3 seconds press to turn on, hold 3 seconds to end output. Four level power indicator. Power bank auto-end output once mobile phone was changed over Special design of overcharge, overdischarge, over-current and short circuit protection

Power Bank 3.7V 2600mA