I have built a custom Café around and SR500 frame and motor. I purchased the 100-009 Ballistic battery because it was small and I could hide it. The SR is a kick start, self-charging bike. It doesn't need a battery. I wanted a battery to keep the lights bright at idle. I figured a 12V battery that was designed to start a scooter could handle being a reservoir for low idle, power off situations. I was wrong.
The first battery died quickly. 0.0V, and wouldn't take a charge. Because I wanted to ride, I purchased another -009 while having several conversations with Ballistic about a warranty replacement. They made me mail the failed battery back, and then warranty/replaced it with a -010, because they had stopped producing the -009. My second purchased -009 died three months later. This time Ballistic refused the warranty claim (second purchase, first failure), because they said I was using it in the wrong application. My bad, the SR500 is not on Ballistic's application list. Lessoned learned: If the battery you are using is not an approved application, they have the option to refuse warranty. My only issue is that they did not tell me until after the second failure.
So, now I have a novice education on LiFePO batteries:
The problem with LiFePO starter batteries, is that they have no protection and are susceptible to failure. If the battery get's below 5 or 6 volts, it's dead forever. If it is over-charged, it is dead. If it is over-discharged, it's dead. A Protection Circuit Module (PCM) can be used to protect the battery from these situations. However, during a high amperage start the PCM will be destroyed. So, PCM's are not used on the starter batteries. Maybe there are manufacturers that have some kind of protection?
My second thought was to use a smaller camera/tool type battery. Many of the camera/tool 12V LiFePO batteries will have a PCM that prevents over-discharge/charging/drain......perfect!?......nope.....These PCM's get destroyed if they are subjected to a charge over 2amps. The SR charges up to 11amps.....no worky
The lesson learned is that if you use a LiFePO, be careful with it. I think a better option are the lead acid or AGM batteries. They are typically cheaper, more durable, but larger.
Ton up,
J