One of my 6v SLA batteries died recently so I went shopping for an upgrade. I found the following at Action Auto Parts in Olympia: 12v 12AH Motorcycle battery $19.95, plus on their "sale" table a 55 Watt halogen backup light $4.99. It is enclosed in a waterproof holder with an adjustable bracket. I just received 2 amber zenon flashers from All Electronics so I'm all set to build up a light box & long run headlight that can be switched between my Winter rain bikes at a total cost of $52.34 which includes tax, shipping & $1.20 core charge on the battery. It will be a bit heavy(10 pounds for the whole package) & I won't have time to put everything together for a few weeks but I will post my results when everything is up & running. Don