The quickest way to check your Aula F75 battery

The Aula F75 keyboard shows its battery level through an LED indicator on the top right of the board, just above the number pad. When you press the power button or move the keyboard after it has been idle, a small light will glow — the color and brightness tell you how much charge remains. A bright blue light means the battery is full or nearly full. A dimmer blue or green light means the battery is medium. A red light means the battery is low and needs charging soon.

If the LED does not light up at all when you press the power button, the battery may be completely drained. Plug the keyboard into a USB power source using the charging cable that came with it, wait a few minutes, and try again. The LED should appear once power reaches the battery.

You can also check the battery level through software if your Aula F75 is connected to your computer via the 2.4 GHz wireless receiver or Bluetooth. Some gaming keyboards come with companion software that displays battery percentage on screen, though the Aula F75 does not always require this software to function — the LED indicator is the primary way to monitor charge.

Key Takeaways

  • The LED light on the top right of the keyboard shows battery status: bright blue is full, dim blue or green is medium, and red is low.
  • If the LED does not light up, the battery is completely drained and the keyboard needs to be plugged in to charge.
  • The LED indicator works without any software or app — it is built into the keyboard itself.
  • Charging the Aula F75 takes roughly two to three hours from completely empty to full, depending on the power source.

Understanding the LED color codes

The LED on your Aula F75 uses color to communicate battery status at a glance. Bright blue indicates the battery is above 50 percent charged. This is the state you will see most often during normal use, and the keyboard will function reliably for hours of typing and gaming.

A dimmer blue or green light means the battery is between 20 and 50 percent. The keyboard still works normally at this level, but you should plan to charge it within the next few hours if you use it heavily. If you are away from a power source, this is a good time to switch to a wired connection if your keyboard supports it, or to reduce your usage until you can charge.

A red LED indicates the battery is below 20 percent and running low. At this point, the keyboard may disconnect unexpectedly if the battery dies completely, especially during wireless use. Charge it as soon as you can. If you are in the middle of work or gaming, connect the keyboard to a USB power source with the charging cable — you can continue using it while it charges.

How to charge your Aula F75

The Aula F75 charges through a USB-C or Micro-USB port, depending on which version you own. Locate the charging port on the back or side of the keyboard, usually near the power button or wireless receiver slot. Connect the cable that came with your keyboard to this port, then plug the other end into a USB power adapter, computer USB port, or any standard USB power bank.

The keyboard does not need to be powered off to charge, though turning it off may speed up the charging process slightly. While charging, the LED indicator may change color or blink to show that power is flowing in. Once the battery is full, the LED will return to bright blue and stay steady.

Charging time varies based on the power source. A standard USB port on a computer (5V, 0.5A) may take three to four hours. A dedicated USB power adapter (5V, 1A or higher) typically takes two to three hours. Avoid using very low-power sources like some older phone chargers, as these will charge very slowly or not at all.

What to do if the LED does not respond

If you press the power button and the LED does not light up, the battery is likely completely empty. This is normal if the keyboard has been sitting unused for weeks or months. Plug it in to charge for at least 15 to 30 minutes, then try the power button again. The LED should appear once the battery has enough charge to power the electronics.

If the LED still does not light up after 30 minutes of charging, check that the charging cable is fully inserted into the port and that the power adapter is plugged into a working outlet. Try a different USB cable or power adapter if you have one available — the cable itself may be damaged. If the keyboard still does not respond after trying a different cable and outlet, the battery or charging circuit may have failed, and you may need to contact Aula support or the retailer where you bought the keyboard.

Battery life and when to expect a charge

The Aula F75 battery typically lasts between 30 and 50 hours of continuous use on a single charge, depending on the keyboard's backlight settings and how actively you are using it. If the backlight is set to maximum brightness, the battery will drain faster. If you turn off the backlight or set it to a low level, you can extend the time between charges significantly.

In practice, most users charge their Aula F75 once every one to two weeks with normal daily use. If you use the keyboard for eight hours a day with moderate backlight, you might charge it every five to seven days. Heavy users who game for many hours daily may need to charge every three to four days.

The battery will gradually lose its ability to hold a full charge over time — this is normal for all rechargeable batteries. After one to two years of regular use, you may notice the keyboard does not last quite as long on a single charge as it did when new. This does not mean the battery has failed, only that it has aged. If the battery becomes unusable, some keyboards allow you to replace the battery yourself, though this varies by model.

Wireless connection and battery drain

The Aula F75 uses either a 2.4 GHz wireless receiver or Bluetooth to connect to your computer. Both of these wireless modes use battery power, but the 2.4 GHz receiver is generally more power-efficient than Bluetooth. If you notice the battery draining unusually fast, check which wireless mode you are using and consider switching to the 2.4 GHz receiver if your keyboard supports both.

You can also reduce battery drain by turning off the keyboard when you are not using it for extended periods — for example, overnight or during a lunch break. Some Aula keyboards have an auto-sleep feature that powers down the wireless radio after a period of inactivity, which helps preserve battery between uses.

Frequently Asked Questions

Can I use the Aula F75 while it is charging?

Yes. You can type and use the keyboard normally while it is plugged in and charging. The keyboard does not need to be powered off, and charging will continue even while you are actively using it. This is useful if your battery is low and you need to keep working.

Why is my Aula F75 battery draining so fast?

Fast battery drain is usually caused by the backlight being set to maximum brightness, or by using Bluetooth instead of the 2.4 GHz wireless receiver. Try lowering the backlight level or switching to the 2.4 GHz receiver if your keyboard supports it. If the battery drains in just a few hours even with low backlight, the battery itself may be aging and losing capacity.

What does it mean if the LED blinks instead of staying steady?

A blinking LED usually indicates the keyboard is in pairing mode or connecting to your computer. Once the connection is established, the LED should return to a steady glow. If it continues to blink after several minutes, try turning the keyboard off and back on, or re-pairing it with your wireless receiver or Bluetooth device.

Is it bad to leave the Aula F75 plugged in all the time?

Modern rechargeable batteries like the one in your Aula F75 are designed to handle constant charging without damage. Once the battery reaches full charge, the charging circuit stops supplying power to prevent overcharging. You can safely leave the keyboard plugged in overnight or for extended periods without harming the battery.