There are several potential reasons why a laptop may die quickly or have a short battery life. Some common causes include:

1. Age: As a laptop ages, its battery may become less efficient and hold a charge for a shorter period of time. This is a normal part of the battery’s lifespan and is not necessarily a cause for concern.
2. Overuse: Using a laptop for extended periods of time or running resource-intensive programs can drain the battery faster. This can be especially true if the laptop is running on a low battery or if the power supply is disrupted.
3. Malware: Malware, or malicious software, can drain a laptop’s battery by running in the background and using up resources. If a laptop is infected with malware, it may have a shorter battery life.
4. Hardware issues: There may be a problem with the laptop’s hardware that is causing the battery to drain faster than normal. This could be an issue with the battery itself, the charging system, or another component of the laptop.
5. Settings: The laptop’s settings and configurations can also impact battery life. For example, if the laptop’s power management settings are not optimized, it may use more power and have a shorter battery life.

To determine the specific cause of a laptop’s short battery life, it is important to troubleshoot and eliminate potential causes one by one. This may involve checking for malware, optimizing power management settings, or consulting with a professional for hardware-related issues. In some cases, replacing the battery or another component may be necessary.