ReVIVE Solar ReStore SL4000 4000Ah Power Bank. Slim, Compact Design - Don't worry about any extra bulk with the ReStore SL 4000! This compact but powerful power bank is only 0.4 inches in width and weighs 4.25 ounces. It can easily fit in your pocket, backpack, purse and more for the perfect on-the-go accessory! Simple Charging for Your Device - Using the 1.5A USB charging port and your device's charging cable, get quick, portable power with the SL2600! When plugged into your device, the red indicator light will blink when the SL4000 is getting low on battery. A solid red light indicates that your device is charging. Continuous Power - The SL4000 only takes 6 hours to charge by USB using the included micro USB cord and 24 hours when in direct sunlight. The red indicator light blinks to indicate its charging and glows a solid red when it has completed charging. NOTE: Charge by USB first; use solar charging as backup power only. Works With:. Lanterns: Coleman Classic 400-Lumen Rechargeable LED Lantern, Ivation Super-Bright 16-LED, ThorFire Camping LED Lantern, Suaoki Camping Lantern, Supernova Halo 180 Extreme, Fenix CL25R 350 lumen Rechargeable Camping Lantern, MAOZUA Hand Crank LED Camping Light, Supernova Orion Ultimate, TeSoar LED Camping Lantern, EtekCity 2-in-1 Cree XP-E 300 Lumens, XCSOURCE RJ-3001 5000LM Head Lamp. Fans: Sunhiker 3 Speeds Mini USB Rechargeable Fan, O2COOL Rechargeable Fan, UnicornTech FN-03 Potrable Desktop Fan, efluky Mini USB Rechargeable Fan, Innobay Pocket Mini USB Fan, CHENRUI 3 Speeds Mini USB Rechargeable Fan. GPS Trackers: Mengshen(R) Mini GPS Receiver Tracker, Docooler PG03 Mini GPS Receiver, i-gotU GT-120 USB GPS Travel Logger . And More Rechargeable Camping Devices!