This. Also, based upon my experience, with 4xArdite/Flux hammers... you will need three hammers in total, so you're not standing there waiting for your one hammer to recharge.
I always had one hammer in my hand, one hammer in the Energetic Infuser, and one hammer in my inventory. By rotating all three, I never had to take a break from mining to wait for a recharge.
Two hammers still made me wait a bit... so three are necessary.
Also obvious but I'll say it anyways... I use two enderpouches/enderchests. One contains all my "stuff I might need but don't want to carry on me all the time"... this is the chest where I put the ardite hammers needing a charge. The itemduct filtering ensured only hammers with less than 100% charge get pulled out of that enderchest, and when it gets put back in by the Energetic Infuser it will be at 100% and it will stay in the chest.
The other enderchest/enderpouch is tied into my AE system which immediately pulls out full stacks from the chest. This is where I dump all my raw materials when my inventory fills up... another obvious way you can get slowed down, its so obvious I'm sure there isn't anybody who DOESN'T use this method, but it still should be said.