[amullo]

Negative ground.

I always put the negative right on the negative pole on the battery. This "frame" stuff is simply to minimize sparks. Just put the clamps on the battery BEFORE you plug in the charger to the wallsocket.

Having a batterytender is ok, but for heavy charging you should disconnect the battery from the bike...

//amullo

 

[amullo]

I use a batterytender only during the winter or MAYBE once during the riding season (to charge the battery up fully). And the only reason why is that i have a small 5 Amp battery instead of the big YB16AL-A2 13Amp that came on the bike and the fact that i have an alarm that drains the battery when in the garage.

But batteries have limited life and motorcycle batteries live a stressful one. A batterytender is an easy, inexpensive way of prolonging the life of your battery