Technical Support wrote:
You will need the charger block shipped with the VML or VLX. This has monitoring circuitry that prevents over charging.
A 100W cigarette lighter style adapter will work, if you have that kind of 12V port on the bike.
Yes,. but as I said above. I'm already taking a big hit on storage space with the VLX + Battery. I'm not going to worsen the problem by adding a 2nd inverter & power brick.
Hmmm How about a 12v ( input ) laptop charger ( that produces 24vdc? ) Should be smaller that the 120v power brick. since it doesn't have the 120v power conversion circuitry.. and it will contain the battery protection.. ?