I use the
Battery Tender Jr. It's just a wall wart with leads on it. It comes with a ring terminal cable that you can permanently attach to the battery and just plug it in when needed.
Remember to check your electrolyte level so you don't boil it off when you're not riding.
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2003 Yamaha Warrior
2004 F-150 4.6/SC/SB (for work and play)
Working for a living is a highly overrated way to spend your time. - MWQ
...I think you're better off getting advice from someone who doesn't have to wait for the battery to charge before they can ride. -- Scootergptx
The ‘lesser of two evils’ is still evil. -- Bob Barr