so I picked up a ctek 3300, hardwired it to the battery terminals and ran the quick detach connector under the hood area near that small opening in the plastic, now I can just tuck it in when not in use and allows easy charger access. Great idea I found here. This set up is a lot more convenient vs plugging into the passenger floor cigarette outlet and running the wire though the window. I just lay a towel on the windshield area where the wipers are and I can set the charger there, I have an overhead 110v outlet so no cords to trip over.

So which setting do I use? Normal mode 14.3v/3.3a. Or the snowflake mode 14.7v/3.3a? I am confused as the snowflake mode says for battery temps <41 degrees, both this mode also says AGM batteries?? The normal mode is wet, maintenance free, gel.

so which setting? I assume Snowflake as it’s for AGM batteries.

 

 

I've run mine on the snowflake for a couple of years now with no problems.....that is what I thought was best for our AGMs

Also I ran the lead all the way over to a corner and that way I can hook it up without having to open the frunk...

 

I called and spoke to the CTEK engineer directly. He said the snowflake is the appropriate setting for AGM batteries as they require higher amperage. (4. something ?).

 

Agreed, snowflake setting for me with Optima red top.

 

Snowflake setting for me.

 

Thx