My purpose of this battery tender is for a motorcycle.craftsman wrote: ↑ You can do that but the main reason for one of these is to keep the battery in a condition where you can just start up and go. If you aren't planning to be able to just start up and go (hence the parking insurance), I would suggest the following:
1. Disconnect the battery.
2. Do some preventative maintenance on the battery - remove the battery, clean the exterior of the battery, if the battery fluid can be checked and filled, do it, and then charge the battery with an external charger and leave it disconnected once charged. Then charge the battery every month or so for a few hours (yep that's all it will take a few hours). When you want to use the car again, just coat the terminals with a thin coat of electric grease, and reinstall. You'll use a whole lot less electricity by only charging the battery a few hours a month than leaving it plugged in AND reduce the risk of fire. While not at all common, these types of chargers, in general, have been known to malfunction and end up overcharging the battery or may even short out.
Alternatively, if you don't want to disconnect the battery, you can plug the Battery Tender into a weekly appliance/light timer and set it to run for a few hours per week while being off for the rest of the week.
Would the suggestion you've noted above work for a motorcycle battery too?