Just over a year ago, Microsoft unveiled the Portable Power, its first self-branded smartphone accessory following its acquisition of Nokia's devices and services business. The mobile charger went on sale in December priced at $49, but it's now available with almost half off its suggested retail price.
It's now on sale via the Microsoft Store for $24.99, saving you $24.01 off the regular price, and is currently available in white, green and orange variants.
However, they may not be available for too long, as it's likely that the company is clearing stock of the DC-21 to make room in its range for the trio of 5200mAh, 9000mAh and 12,000mAh 'Portable Dual' chargers that it announced in June, priced from $35.
Source: Microsoft Store