knowledge is power. if you know what it takes about your battery, you will not find yourself stranded.
i started a thread here https://www.crossfireforum.org/forum...xperience.html, but it is in a place where there is not as much exposure. i suggest you search there. you will find all that you need to know the condition, but also to prolong its life.
and if you want to understand how the battery generates electricity, there are several sources and videos explaining all:

https://www.google.ca/search?hl=en&s...client=gws-wiz