batLogger

While the processor and amount of RAM are important criteria when shopping around for a laptop, more often than not users do not pay too much attention to the battery. In all fairness, without a decent battery, a laptop is nothing more than an underpowered desktop.
batLogger is a lightweight piece of software that enables you to keep track of discharge status of your laptop or tablet's battery so that you can manage application usage more efficiently.

Comes with a minimalistic, yet intuitive UI

The application does not require any setup, but rather you can unpack the archive to any desired location on your drives. Upon launch, you come face to face with a small and simplistic UI, but that is rather suitable for the role of the application.
You will be happy to learn that the utility identifies the status of your battery automatically, providing that you run it on your laptop or connect the tablet to the PC. As far as configurations go, you can specify the output interval in seconds and where you prefer to store the CSV file that stores the data about the battery.

Provides you with a detailed report on battery usage

The idea behind the application is to check and record various data regarding the battery usage on your device. To be more precise, the utility stores information regarding the time-stamp, power source, percentage of the battery charge remaining, battery status and the estimated time remaining in a dedicated file.
It is worth mentioning that the program can be set to work quietly in the background and hence, does not constitute a distraction from your task. If you want to stop recording, then you can access it at any time from the System Tray.

A useful tool for laptop and tablets users

In the eventuality that you need to carry your laptop or tablet to work or school with you and you want to be sure that your battery does not fail you and you can make your presentations, then perhaps batLogger could come in handy.