The present invention relates to an ice-skate blade edge squareness verification device comprising an indicator element with a plurality of squareness indicia on its face and a verification element removably mounted across a skate blade’s edges for verification of squareness of those edges in conjunction with the squareness indicia of the indicator element. The forward power control is performed by receiving at least one reverse link channel that informs channel quality information of a forward link, and determining a power of a channel to be transmitted to the forward link according to the channel quality information. When the power converter is powered up an internal timing circuit increases the output voltage by a preset amount for a timed period for rapid charging but is also adjusted to predetermined temperature curve controlled by the remote temperature sensor to prevent overcharge.