Maast
Compulsive Tinkerer
Had an idea to monitor battery interconnects and components - use heat sensitive color changing stickers or tape to see if they're hot so I can tell at a glance if something is not right or going bad.
From what I've found there are two types, a permanent color change and a temporary change that resets when it cools down. I'm thinking using both would be useful: The permanent to tell if it's ever gotten hot even if the load has reduced and it's cool right now, and the resetting type to see if something is hot right now.
I've found a product called Chameleon Skinz which is a thermochromic duct tape and several online vendors like thermometersite.com that have stickers. There's also thermochromic paint.
I was thinking on how I could monitor the cell-to-cell intereconnects on my BYD bank and got to thinking about the mood ring I had back in the early 80s and started looking around online. No way to know if a cell in a cell group is going/gone bad other than the heat it'd cause in the interconnect wires and maybe a constant draw on the balancers. I dont think the cells themselves would heat up unless it had a internal dead short.
So far I havent found a small sticker that has multiple color changes in a fingernail sized area but I'm sure it exists somewhere. All I've seen is the thermometer strips which are too long to monitor a contact point.
From what I've found there are two types, a permanent color change and a temporary change that resets when it cools down. I'm thinking using both would be useful: The permanent to tell if it's ever gotten hot even if the load has reduced and it's cool right now, and the resetting type to see if something is hot right now.
I've found a product called Chameleon Skinz which is a thermochromic duct tape and several online vendors like thermometersite.com that have stickers. There's also thermochromic paint.
I was thinking on how I could monitor the cell-to-cell intereconnects on my BYD bank and got to thinking about the mood ring I had back in the early 80s and started looking around online. No way to know if a cell in a cell group is going/gone bad other than the heat it'd cause in the interconnect wires and maybe a constant draw on the balancers. I dont think the cells themselves would heat up unless it had a internal dead short.
So far I havent found a small sticker that has multiple color changes in a fingernail sized area but I'm sure it exists somewhere. All I've seen is the thermometer strips which are too long to monitor a contact point.
