2021 PORTABLE MODEL: 215700C FAST 45W CAR CHARGER INCLUDED Content: Zopec Battery, Universal Wall Charger, fast 45W Car Charger, travel pouch, user manual, and nice white storage box. HAVE 3 OPTIONS FOR SOLAR CHARGERS (40W, 60W, 100W) for different weather conditions. (separate purchase) Common Uses: Camping/Hiking with CPAP 2 – 3 nights. RV over night with humidifier (low-level) Silver Level UPS Technology: Uninterrupted sleep when power outages occur! UPS supports CPAP and BiPap. Must turn off Humidifier and Heated Tube. Battery stays at 100% as standby power. AutoSwitch to battery power instantly with sensors. Normally uses wall power with pass-through. Doesn’t hurt battery life plugged in 24/7. Ultra-High Battery Capacity: 160 Wh / 54 Ah (OK for Air Travel! Max capacity FAA Allows.) Sleep 7 - 8 hours with humidifier (up to mid-level) at pressure < 12 cm H2O. No heated tube. Sleep 14 - 24 hours without humidifier and heated tube (up to 3 nights of sleep!) NOTE: It will not get 8+ hours using heated tube. Use Explore Oxygen for heated tube. Solid State Peltier Cooling: Battery is 100% Silent! No cooling fans. Panasonic Lithium Ion Cells: Same brand as Tesla vehicles use! Smallest, lightest, best quality! Super Light and Compact: 2.5 lb. 8.5” x 6.0” x 1.0” in. (Only 1“ thin!) AC Outlet 110V (US): Works with all machine brands and models. Very Easy to Use! Just plug in the battery! No need for special adapters, inverters, or voltage matching! Powers Mac/PC laptops, internet modems, phones, tablets, lights, or any device < 120W Solar Panel Charger (optional): Allows travelling in remote areas. Fast 40W charging. Recharge Time: Less than 6 hours. Unlimited Linking Technology: No limit on linking up batteries to get more capacity! FAA/TSA Compliant for Air Travel: Carry-on Only. Limit is 2 batteries per person.