This battery can output 24V & 5V DC power. It can be used for many different devices such as LED lights, tablets, mobile phones, digital frames and DVD players. The battery maximum output at 24V can reach 60W ( 2.5 Amps at 24V) by combining input power or by battery itself. 24V Can be used for LED lights, LCD Monitors and many other devices. 10 interchangeable connector tips can fit many different size power jacks. 5V USB port for iPads, tablets and cell phones. High Capacity: 99 Watt-hour capacity ( or 27,000 mAh if rated like other external batteries on market). Its rated capacity is equivalent to a 12V 8Ah lead acid battery. However, this lithium battery can be fully discharged while most lead acid battery cannot be fully discharged. This battery's actual running time per charge may be close to a 12V 10Ah ~ 12Ah lead acid battery. Weighs only 1.8 Lbs. Compact slim size 8.5" x 5.5" x 1" inches ( or 220 x 145 x 25mm)Long running times. For an iPad, it can supply up to 30~40 hours. For an iPhone, up to 60 hours talk time. 24V Mini UPS Function: The input power from AC Charger is around 30W. When battery output is less than 1 Amps power at 24V (24W), the battery input power from AC charger will provide output power and at same time charge battery. The battery will function like a 24V DC Uninterrupted Power Supply (UPS) and will never run out of power as long as input has power. The battery cells will provide power when battery has no input power or when output power is more than input power.