Why Your Smartphone Drains Battery Overnight and How to Fix It.

Even in standby mode, a smartphone can quickly drain battery due to background processes and the activity of VPN apps that run even when you're not using the device. This can lead to a significant reduction in battery charge over a short period, especially when combined with a worn-out battery or extreme temperatures.

It's especially important to be cautious with free VPN apps, which can turn out to be not only unproductive but also dangerous for your smartphone's security. Such programs can not only consume a lot of energy but also use your device for questionable purposes, increasing the risk to your privacy and data security.