Complex sentence: When the Omnitrix times out, while timing out, the Omnitrix beeps and flashes, converting the user back to normal, and takes around 10 minutes to recharge, though it may take more time if tampered with.
Split into simpler sentences: When the Omnitrix times out, it beeps and flashes, converting the user back to normal. It takes around 10 minutes to recharge, though it may take more time if tampered with.