How Long to Charge a New HP Laptop Battery for Best Performance If you’ve just bought a new HP Laptop Battery Charger , you might be wondering, “How long should I charge the battery for the first time?” Properly charging your new laptop battery ensures long-lasting performance and battery health. In this guide, we’ll cover: Initial charging time for a new HP laptop battery Best charging practices for battery longevity Common myths about laptop battery charging Tips to maximize HP laptop battery life Let’s get started! How Long Should You Charge a New HP Laptop Battery? When you first get your HP laptop, it’s best to charge it fully before use. Here’s what you should do: Plug in the charger and let the battery reach 100%. Most new HP laptops take about 2 to 4 hours to charge fully from 0% to 100%. Avoid unplugging it too early—letting it reach a full charge ensures the battery calibrates correctly. Unlike older nickel-based batteries, modern HP laptops use Lithium-ion (Li-ion) batteries...