BiXPower 110V AC Porable Power Pack with High Capacity (192 Watt-Hour) Rechargeable Battery - XP190AC Power any device anytime anywhere. This power pack comes with BiXPower CP190 rechargeable lithium battery (192 Watt-hour capacity), a 155W DC to AC power inverter. Battery Features: High capacity and light weight. The battery is rated as 192 Watt-hour (13Ah @ 14.8V, or 52000mAh if rated as other brand external batteries on market). Its weight is only 2.75 pounds. High quality: made with premium Samsung Lithium Ion cells. Built-in PCB protection to prevent short circuit, over-current, over-heat, over-charge, over-discharge. Power Inverter Features: Light weight: only 0.5 pound; Small size: 4 x 2.6 x 1.5 inch. The power inverter can also be used to provide 110V AC power from a 12V car cigarette lighter socket. You can use it together with the AC charger to charge the battery from any car/truck/boat with 12V cigarette lighter socket. The inverter is specially designed for the battery and converts the battery DC power to 110V modified sine wave AC power. Maximum AC inverter output power: 155W. Benefits: When battery and inverter are two separate units, it will be much easier to replace/upgrade battery or inverter. AC inverter may generate heat. If integrating battery with AC inverter in one unit, battery will work in hot environment. Heat is the worst enemy of lithium ion batteries. It may rise some safety concerns.