Hardware Lithium battery packs for wiimote and balance board?

[Gamii]

Hello.

Wiimote and balance boards suck tons of batteries and getting tired of changing them. Ni-Mh and such are not so comfortable too.

I want a lithium battery pack for them, not need to extract the batteries for recharging and able to use them in the process.

Do they exist? Am I wanting something impossible?

Regards.

 

[Social0]

dunno for balanceboard but I have been using them for ages for my wiimote, various brands make them

 

[Gamii]

Are there some list out there? I would like to start one no the wiki if not with help of more people.