Power source
The Wii Remote uses two AA batteries as a power source, which can power a Wii Remote for 60 hours using only the accelerometer functionality and 30 hours using both accelerometer and pointer functionality.An official direct recharging option for the Wii Remote has not yet been revealed, but various third-party manufacturers market charging solutions for the controller (see section on chargers). According to an interview with Nintendo industrial designer Lance Barr, limitations of the Wii Remote’s expansion port make it unlikely that it will be used for internal battery charging.Although Nintendo discourages other rechargeable battery types such as lithium ion (Li-ion) and nickel-cadmium (NiCd), the company’s support website indicates that nickel-metal hydride (NiMH) rechargeable batteries may be used.A 3300µF capacitor provides a temporary source of power during quick movements of the Wii Remote when connection to the batteries may be temporarily interrupted.