Store battery power
You can manually change the power consumption of your computer and save battery power.
Reduce the number of open applications. Even if the application window is minimized, each open software application uses memory and power. Turn off the software application to conserve battery power.
Reduce the screen brightness to the minimum required for reading. Use the function keys or the Windows screen settings to adjust the brightness.
When not in use, disconnect the peripheral device. External hard drives and other peripherals consume battery even when not in use. Disconnect them after use.
Reduce processor speed. The faster a computer works, the faster it consumes the battery. You can extend battery life by reducing processor speed.
Turn off the wireless feature. The wireless connection consumes the battery. Turn off wireless when not needed. Press the wireless switch button to turn off the wireless function and its indicator.
Change the power saving settings. Select Power Management recommendations to save battery power.
How do I convert battery power to AC power?
DC power from batteries can be converted to AC power by using suitably sized power inverters. Inverters are solid-state electronic devices with transistors or IGBTs using fast switching patterns to convert the DC voltage from the batteries into AC power. Large solar panel arrays and large Uninterruptible Power Supplies (UPS) also use invertes using high-power semiconductors like IGBTs to convert DC into AC powers.
You need a circuit to change the DC battery power to PDC (pulsating direct current) which usually involves thyristors; once established it can be stepped up or down to the desired voltage. Frequency plays a part here, but for this example we can assume we’re talking about standard line frequency, 60 HZ. The ensuing “wave “ may not exactly emulate the classic 60 hz sine wave because of inductive reactance inherent in the transformer but for utile purposes it SHOULD work in most devices designed for use in 60 hz devices.