Joined
·
1,285 Posts
I use a Battery Tender Junior (model 021-0123) for my motorcycle batteries. It's output is 12 volt and 750ma. One time I put it on the Fiat's battery and it demonstrated that it is just too small of a power supply to top off that comparably huge battery (vs. the motorcycle batteries). It was in the charge state for several hours without ever showing a full charge. The car had been driven quite a bit previous to that occasion (and has never had a charging system issue, nor problems starting), but on my little MC batteries the Junior indicates a full charge within 10-30 minutes.
I see the Battery Tender model 021-0128, which has a 12 volt and 1.25amp output, 50ma higher output than the BT Junior. ($45 at Amazon.) See them both, and more, here. They are the first two on the list.
http://products.batterytender.com/Chargers/?_ga=2.89882459.133582828.1507864563-348856958.1507864563
Is the 12v/1.25amp unit going to suffice as an occasional "maintenance charger" for the big Spider battery? I will not leave it connected for constant "smart" charging, instead installing the charger every few weeks for the period of time needed to indicate a full charge. There are other models for 12v systems that put out 3 to 5 amps, at a higher cost as well.
Thoughts, experiences, or ideas?
Steve.
I see the Battery Tender model 021-0128, which has a 12 volt and 1.25amp output, 50ma higher output than the BT Junior. ($45 at Amazon.) See them both, and more, here. They are the first two on the list.
http://products.batterytender.com/Chargers/?_ga=2.89882459.133582828.1507864563-348856958.1507864563
Is the 12v/1.25amp unit going to suffice as an occasional "maintenance charger" for the big Spider battery? I will not leave it connected for constant "smart" charging, instead installing the charger every few weeks for the period of time needed to indicate a full charge. There are other models for 12v systems that put out 3 to 5 amps, at a higher cost as well.
Thoughts, experiences, or ideas?
Steve.