About to charge my Gen II battery. 12V at 2amp or 6V at 4amps?

[Matte_Black]

Greetings folks,
I'm about to charge/ maintain my Gen II battery and I have a Schumacher SC-200A battery charger / maintainer with two settings 12V at 2amp or 6V at 4amps, which setting is correct for the battery? I'm thinking 12V at 2amps but hey I may be wrong

Bought two battery tenders and they both died so I thought I would try Schumacher (good ole Walmart)

Thanks in advance

Battery picture and specs can be found here
SC-200A:

 

[twotonevert]

12v at two amps for maintenance charge. You really need a trickle charger if you want to set it and forget it.

 

[BIKE DUDE]

That rate is ok for an over night charge but too high to be left plugged in all the time for the whole winter.

 

[Matte_Black]

Thanks Guys based on the manual it is an intelligent charger so it will charge it to full and keep it there, it will automatically switch from charge mode to maintain mode. good ole walmart $19.95