I installed a pair in my buggy last week.

After 3x 5 minute quali's with 3 minutes warm up on the track and 4-5minutes warmup on the startbox. I put back 151mah in my lipo.

And after a 20min with 5 minutes of warmup on the track and 10 minutes warmup on the startbox I had still 95% left meassured with my charger. Haven't charged the lipo yet, so I don't know how much mah that will go back in it. But I guess it will be less than 150mah.

These servo's are very efficient. Even with a 500mah lipo I can still drive for more than an hour

And they are super precies and very fast, but not twitchy fast.
I'm very impressed with them.