Garmin Vehicle DC Power Adapter for eTrex and Geko (010-10203-00) Plugs into any standard cigarette lighter compatible with eTrex Camo, eTrex Legend, eTrex Legend H, eTrex Summit, eTrex Venture, eTrex Vista, eTrex Vista H, Geko 201 and Geko 301 Conserves battery life Convenient and easy to use Genuine Garmin-quality product