For me it’s probably speech therapy and everything pertaining to that. I’m yet to encounter someone on here who is one apart from me (in training).
What about you?
For me it’s probably speech therapy and everything pertaining to that. I’m yet to encounter someone on here who is one apart from me (in training).
What about you?
Lithium ion batteries. Especially when they catch fire and how to put them out.
What charging pattern is best for the batteries?
Is keeping the charge between 20% and 80% a good idea? Does it make sense to charge to 100% and to discharge completely from time to time?
As close to 50% is best for longevity/cycle life, so the 20-80 rule is a good one. That said, devices Like smart phones with smarter battery management systems (BMS) benefit from relearning the battery voltage curve, so discharging/charging from 0-100 can be beneficial for accurate state of charge measurement.
What’s the best way to dispose of a spicy pillow in USA?
Someone else’s trash can. Alternatively, a hammer and nail typically work pretty well.
More seriously, discharge slowly to as low as you can and dispose of per local regulations. I have disposal centers near me that take them.
I just recycled some really big and spicy pillows at my recycling center. I used them for my drones, and they were pretty busted. (I kept them in a fireproof container outside) They wanted me to throw it in a barrel with other really messed up exposed wire pillows. It made me pretty nervous.
Hahaha yeah general convention used to be just throw them all in a bin like nonrechargeable batteries. Train explosion in Houston a while back showed why that was a bad idea. That said if they’re all completely discharged, the hazard is much less because less stored energy AND the cathode is more stable (gives off less oxygen during decomposition). The former reduces internal short hazards/heat; the latter reduces energy and effluent release if they go off.
The fireproof container isn’t a bad idea, but be careful of making a bomb. You want it to leak before burst just due to the large volume of effluent produced. Best practices are to reduce how much you store, keep long term batteries at ~25% SOC (less for disposal), and storing away from other flammables including other batteries.