RADdodge
TDR MEMBER
We went with the Optima Yellow tops. BTW, the Yellow and Blue tops are the same spec except for the terminal lug type. The Blue is made for boats and campers that need the screw on lugs. Anyway, we went with the Yellow Tops because of all the accessories, the alarms and the fact that it sits about 6 days out of 7 until we go on the road. FYI, once when it had sat for awhile (and hadn’t been driven much besides) it wouldn’t start. Batteries ran down. The work around was to disconnect the manifold heater relays. Started right up (it was in the 60’s at the time so they weren’t really necessary). You might want to locate the relays just below and ahead of the left battery mounted on the steel cowling just incase you ever encounter a low battery situation. That heater takes a lot of juice!