I wish it was easier to recharge the batteries without having to remove them from the holder, plug them into a charger, and put them back in the holder, etc.
It would be nice if you could disconnect the battery pack, and connect it to a charger, then just reconnect it when it's charged. Similar to recharging a cell phone.
I use P7's instead of my Dinotte due to the hassle of recharging the Dinotte battery pack.