A heated jacket is only as good as the battery keeping it warm. If the battery dies at hour two on a January job site, the jacket is just a jacket. The Wamlet 12V battery is built for that problem — compatible with Milwaukee, Snap-on, Craftsman, Ryobi, AEG, Rigid, Metabo, and Revean heated gear, so you're not locked into one brand's ecosystem.

The Emporium carries this because the people who need it really need it — outdoor workers, early morning commuters, anyone who's ever stood in a parking lot shivering while their heating element negotiated with a dying battery. At, it's a backup you won't think twice about having.

Includes the charger. Works with most 12V heated apparel. Check your gear's connector before buying — the fit matters.