I'm wondering if there's some way to pop the battery out of your NIT and charge it on an external charger. I'm asking, because I'm looking at ways in which I can carry several batteries with me on long flights and trips, and be able to recharge them separate from the NIT. The idea is to pull the battery out, toss it in the external charger, and then let it sit in my room, or off to the side why my NIT does other things with the spare battery. That way I also don't need to have my power plug hanging off the side to recharge the battery while I'm still using it.