I have the rechargeable battery pack on in my wii fit balance board. I the power keeps cutting out and it is saying communication is lost on the balance board, and to push the power button again. This keeps happening over and over again.  The battery pack is brand new, and the light is on on the bottom of the wii fit board. What do I do.

First, the batteries in the Balance Board could simply be dead or need to be recharged.

After ensuring the batteries are good, if it still does not communicate with the Wii, take the battery cover off the balance board, you will see a small red button. On the front of the Wii unit itself, there is also a small red button. Press them both within a short amount of time to sync them together. From this point forward, they should be able to talk to each other.

the rechargeable batteries have a rating system, for how long they last.
a battery with 850mHa will last a far shorter time than 1 with 2500mHa rating.
and non rechargeable batteries have a much loger life span than all rechargeables.
Also rechargeables are 1.2 volt instead of 1.5 volt and will aleays run down alot quicker.

First, I would check the batteries in the Wii Remote. Low batteries will make the Wii Remote signal flicker. After that, I would re-sync the Wii remote by opening the back of the remote and pressing the sync button, after you turn the Wii on, of course.

communication with the wii balance board has been interrupted every time we use the board for any exercise. We have synced many times, but still is happening. Is there any other solutions of what to do besides send it back and pay $60 for a new board from nintendo?

thats a good question. that happend to me twice the first time it was just the battery's they just had to be changed the second time it was the balance board. the balance board had a problem from so much use. there was a problem with the power button and motion sensers. when i steped of it turned off so check the batterys first if that dosent work its time for a new one hope this helped :)

I can at least point you in the direction of the instruction manual:
https://www.nintendo.com/consumer/manuals/wii.jsp

Guest: Rechargable batteries are only 1.2 V each. You should get up to 4.8 V.

I highly suggest running your Wii Fit on nothing other than Alkaline batteries. I've had my Wii Fit for over 3 months and still use the original batteries.

If you feel like you need rechargables, that's fine, but I recommend a quality set of regular AA rechargable batteries that comes with a quick charger (IE: 1-hour). Stick to the same brand of batteries and buy enough for each Wii-Mote, Wireless Guitar, Wii Fit Balance Board, etc.

Amy - Keep in mind that your Wii Fit balance board will ONLY turn on when your program (ie: Wii Fit) is loaded and ready to go. Since the balance board takes up one of the four available Wii-Mote channels, make sure all but one Wii-Mote is turned off before starting Wii-Fit.

You need to load it, stand on the board, step off, and then press A. I have a WiiFit and that happens. It expects you to be standing on it.

make sure the battery charger is connected, and that the port connections are tight, other than that I would say you have a faulty charger.

You may want to send an email to [email protected]. In the meantime, try keeping it plugged into the USB port for at least an hour, or perhaps overnight. See if the light stops flashing and stays on. Then try plugging it back into the Wii Fit unit.

My personal suggestion is to return the charger and battery and buy a 15-minute charger and four more NiMH AA batteries than you need for all of your accessories. Not only are AA batteries compatible with all your accessories, but you won't be out a gizmo while it's needing to be charged.

Good luck!