The duration a 6000mAh battery will last on a smartphone depends on various factors, including the smartphone’s hardware, software optimizations, screen brightness, usage patterns, and network conditions. As a general estimate, a 6000mAh battery can provide the following:

1. Light Usage: With minimal use, such as occasional calls, texts, and light web browsing, a smartphone with a 6000mAh battery can last around 2 to 3 days on a single charge.

2. Moderate Usage: For moderate use, which includes social media, occasional video streaming, and general app usage, you can typically expect the battery to last approximately 1 to 1.5 days.

3. Heavy Usage: If you’re using your smartphone intensively for activities like gaming, continuous video streaming or frequent GPS navigation, the battery might last around 8 to 10 hours.

4. Screen-On Time: If the screen is continuously active at high brightness, even a 6000mAh battery can deplete relatively quickly. Under continuous screen use, it may last around 8 to 12 hours, depending on the smartphone.

It’s essential to consider that the actual battery life can vary significantly between different smartphone models due to variations in hardware and software optimizations.