Do battery drain more quickly when download booster is activated?

A : Download booster feature allows you to download large files at faster speed via Wi-Fi and mobile networks simultaneously.
For the same downloading times, it may drain more battery consumption.
But, in fact, because downloading time of the same contents will be shorten by faster speed, battery usage isn’t large compared to previous devices.
When downloading the same contents, on the average, it spends only medium value of battery usage between LTE
and Wi-Fi.