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I have a 2007 Suzuki M109R boulevard this has an 1800 cc V-Twin engine in it... It takes a good battery to turn this engine over... I tried two other batteries.... The first was an AGM battery that advertised 230 cold cranking amps.... It had trouble turning this engine over... When the engine was warm it would sometimes take three presses of the starter button to get it to rock over and start cranking... The second battery was a lithium battery manufactured by Weize and it advertised 500 CCA..... Unfortunately the rating of this battery was false and it had similar issues as the AGM battery... After reading several reviews I decided to go with the tycool lithium.... It has a rating of 480 cold cranking apps and let me tell you this battery spins that engine over like a capacitor discharge..... So it took me a bit but I finally figured out what battery to buy.... If you have a Harley or some other V-Twin powered motorcycle this is the battery you're going to want.... I kept hitting the starter and then shutting it off I did that about eight times and every time it's like a bolt of lightning....
The battery terminals are hefty and strong. There's a very cool display that could be a useful feature, except that the battery life indicator doesn't seem to be very accurate. But at the very least, it tells you with accuracy if there is a drain on the battery or not. I had it hooked up to an inverter and it took quite a bit of time for it to discharge; however, charging it back up was a different story. The charger seemed to take forever and the display didn't go above 17%; but when I connected it back to the inverter and started to draw power, the indicator level shot up to 100% within about 10-20 seconds.
I installed the battery around 10/22. The only problem is that about two days ago, 11/18, the bike was dead and the battery wouldn't accept a charge. I removed the battery and it showed ~4V. I was able to daisy-chain it to another battery I had and then it started to accept a charge. It initially showed ~74% life and quickly charged back up to 100%. I'm not sure why it wouldn't accept a charge though.
