Hello to everyone i have the headset Astro A50 but i have the following issue, i use them on a Alienware Laptop, when i turn off the laptop the base keeps charnging the headset but when i disconnect the power from the laptop the headset base stops the charging, what can i do or what should i buy to charge the headset without leave the laptop with the power connected (i dont like this cuse the laptop battery could get damaged). Thanks for your help guys