My little helpful idea for the day. We all wind up accumulating batteries. Oftentimes, we are loyal to a brand, and they can get all mixed up in our kit. We also know that LiIon batteries like to be stored with certain charges, like to be topped off, and generally like to be used rather than sit.
To remedy this, I have marked all of my batteries with a Sharpie marker. Each 18350 gets a consecutive number, and the date it entered rotation. I use them in order. #1 is drained, I pop it on the charger and pop #2 in my device. When charged, #1 goes in the box. When #2 drains, it goes on the charger, and #3 goes in the device... when I get to #4, and it drains, I go back to #1... My 18650s get letter designations... A, B, C etc.
They also get marked with the date. While I have not worn any down, and my system still cinsists of only a few batteries... later down the road, when they start to show their age, I will know a) if it's just time for it to die. b) what life I can expect out of them and c) what other batteries might be on the verge of pooping out... and I know this will be accurate, since they will all have had the same number of cycles on them.
To remedy this, I have marked all of my batteries with a Sharpie marker. Each 18350 gets a consecutive number, and the date it entered rotation. I use them in order. #1 is drained, I pop it on the charger and pop #2 in my device. When charged, #1 goes in the box. When #2 drains, it goes on the charger, and #3 goes in the device... when I get to #4, and it drains, I go back to #1... My 18650s get letter designations... A, B, C etc.
They also get marked with the date. While I have not worn any down, and my system still cinsists of only a few batteries... later down the road, when they start to show their age, I will know a) if it's just time for it to die. b) what life I can expect out of them and c) what other batteries might be on the verge of pooping out... and I know this will be accurate, since they will all have had the same number of cycles on them.