Haven't tried any of those, but I do highly recommend the "Battery Tender, Jr". It has hoops that attach to the battery terminals and a quick disconnect plug for easy use. It is a tender, so the microchip senses when current is needed for the battery and it doesn't run through the lighter circuit.
__________________
JGM
2002 Boxster S
1973 911 Green FrankenMeanie
PCA DE Instructor circa '95
|