sunseeker
New member
- Joined
- Aug 30, 2017
- Messages
- 20
Hi guys,
did anyone ever came up with a DIY setup to measure the temperature while testing 18650 cells?
Since I'd love to test all thesecells when I am not at home or during my sleep cycles, I am worried that I won't recognize when one cell runs too hot when bulk-charging them initially, right after they came out of the old laptop packs. For the worst case, I would like to disconnect the charger when a cell gets too hot and I am not around.
I played with the idea of chaining a couple of DS18B20 TO-92 Temperature Sensor and hooking them all up to a RasPi. They are one-wire and have an ID, so that one can read them individually although they are all hooked up on one string in series. I thought about building some kind of a clip that I could lay over the bulk-charge cell holder and read from them every 10 secs.
Even with the BT-C3100 I sometimes wonder if it stopped charging due to excessive heat and picked up charging a couple of times without me noticing. When I check the results in the morning, I wouldn't know.
I am also interested in the data.. so temperature curves of different cells etc.
Do you guys think that this could work? Given that it's possible to put these sensors in touch with each unterlying cell.
Thanks!
did anyone ever came up with a DIY setup to measure the temperature while testing 18650 cells?
Since I'd love to test all thesecells when I am not at home or during my sleep cycles, I am worried that I won't recognize when one cell runs too hot when bulk-charging them initially, right after they came out of the old laptop packs. For the worst case, I would like to disconnect the charger when a cell gets too hot and I am not around.
I played with the idea of chaining a couple of DS18B20 TO-92 Temperature Sensor and hooking them all up to a RasPi. They are one-wire and have an ID, so that one can read them individually although they are all hooked up on one string in series. I thought about building some kind of a clip that I could lay over the bulk-charge cell holder and read from them every 10 secs.
Even with the BT-C3100 I sometimes wonder if it stopped charging due to excessive heat and picked up charging a couple of times without me noticing. When I check the results in the morning, I wouldn't know.
I am also interested in the data.. so temperature curves of different cells etc.
Do you guys think that this could work? Given that it's possible to put these sensors in touch with each unterlying cell.
Thanks!