Laptop batteries make your laptop work. Without them, you won't be able to use your laptop unless plugged indirectly. Think of the battery as the gasoline that fills your car. Currently, the battery is made of lithium-ion and has an average performance of about 4 hours. You can learn more information about batteries via scannerbattery.net/product/zebra-qln220-qln320-series-high-capacity-battery/. […]