Battery Tender® Power Tender Selectable 6V/12V @ 4A
The Battery Tender 4 Amp Power Tender Selectable 12 or 6 volt options as well as battery type selection has you covered. It's lightweight, compact, and fully automatic; very easy to use, especially in small spaces. It will keep your battery fully charged so that it is ready to go when you are!
I acquired this charger to charge my 3 volt lithium batteries in banks of six or twelve volts, connected in series. It worked great charging my discharged lithium cells in the twelve volt series bank set up. However, it would not charge in the 6 volt series bank of two batteries set up. Other then that, I like it. I also charged my lithium motorcycle battery fine. It doesn't get too hot. So as a twelve volt charger I recommend it. Not as a six volt for lithium. It may work on other battery types in six volt, but I haven't tried that yet.It comes with a quick disconnect cable for my motorcycle battery. That is good.
The battery charger is great. Easy to use, instructions very clear. Very good value.
It works perfect. It's a good addition to my garage for long winter storage of my hobby car