The only new option they had size-wise was an Optima yellow or blue, but these are a measly 55-60ah and cost close to $200. I got the 115ah battery for $75. It was a used unit from an electric car that they had pulled when it reached 80% capacity. Some quick napkin math informed me that that still puts me ahead of the game (theoretically 92ah) and at a fraction of the cost of an Optima.
|picture courtesy of www.ase-supply.com|
Out with the stock 10ga ground wire (bottom brown wire), in with a VW customized 2ga ground wire.
For kicks I installed this little volt gauge which is on-demand (still need to wire in a switch for that, just connect the trigger wire for the pic). And to the L is my aux. batt jump start switch, which manually connects the aux batt to the main batt for emergency start situations as described above.