I investigate and check lots of batteries, such as some which are more compact than a Tootsie Roll (for small devices such as a stylus or penlight) or larger than an overweight English bulldog (to help keep essential electronics working through an influence outage or camping journey). Recycle outdated batteries: https://tysonazulb.atualblog.com/42694480/what-does-battery-ups-12v-7ah-mean