Hey Blazer, haven't talked with you in like forever. Yes, I am aware of using good battery maintainers to extend the life of your battery. But what I didn't know was there is a MAJOR difference between brands of battery maintainers on the market. I have two (yes, 2) Battery Tender maintainers. One for my old 350 CCA Yuasa battery, like yours. It works but it won't bring a dead battery back to life. I also have a newer Battery Tender brand charger for my 2 year old lithium-ion battery and it also won't help a battery when it's too low. I use my auto sized battery charger to 'boost' the lithium-ion battery to get it started and then use the charger. Remember the downside to a lithium-ion battery is they crank very well for a long time but they give little to no warning right before they go dead ... and I mean dead. So, that being said I have spent the past few weeks researching battery maintainers and I found a brand named CTEC. More specifically "CTEK (56-864) MUS 4.3 12 Volt Fully Automatic 8 Step Battery Charger".This charger has an 8 step charging process and the #7 step is a green light that means it is safe to start the vehicle at this setting but it has yet another step to go to finish. It has several 'modes' to choose from including - motorcycle/ATV - automobile - cold charge - recon. First one is obvious, so is the second one. Third setting is pretty special as I had a motorcycle battery that was completely dead and very cold. I put the charger on it using the mode for cold. Went out the next day to check and it was on step 4. Went out that night and it was on step 6 and the next morning the green light was on. None of my other chargers would come close to doing this. The 'recon' setting is kind of unique. They recommend that once a year you charge your current battery on recon. It will recondition the battery. Might take a little encouragement to get me to put a perfectly good battery thru a reconditioning once a year but I must admit I can't argue with the performance of this thing so far. I guess the biggest surprise to me so far is to take a battery off of its charger, no matter what size or brand, and test it to see the cca rating and then hook up the same battery to the CTEC unit and let it run thru the 8 steps and then test it again. You'll be impressed.
... Made the journey (from 2 to 3 wheels) now enjoying the ride ...
Brad [TwoBye]