Hey. TH-cam happened to recommend this video to me and I want to say a couple of things: 1) Please warn people that working with power components like lithium batteries could potentially be unsafe. 2) Lithium batteries are serious Class D fire hazards and the fire cannot simply be suppressed by water. 3) You don't give much in terms of directions and that could lead to serious consequences if someone "follows" what you did and ended up with a electrical and metal fire because they accidentally shorted the circuit. 4) You should mention that the lithium battery should be sourced from a reputable manufacturer and should have a protection circuit for safety and to ensure functionality. (Either built in or attached). 5) It is not safe to recharge the battery through the USB port as most USB power sources will supply 5V, overvolting typical 3.7V lithium batteries. 6) It is not safe to recharge the battery with the barrel jack because it can accept power supplies higher than 3.7V (commonly 5V, 9V, and 12V) and can accept sources of different polarity (e.g. center-positive or center-negative). 7) You should generally use a BMS (battery management system) to charge lithium batteries. 8) Not only the 3mm LED, but SMD batteries generally need power-limiting resistors, unless one is built in, which you wouldn't know without: 9) A parts list with part IDs and, even better, an accompanying datasheet. 10) You also shouldn't just post a video without linking to a circuit diagram for further review. I'm not saying that making a video about engineering or electrical work is bad, but make sure that the audience is properly warned, requisite information is given to ensure that people watching the video without any context aren't being put in unnecessary danger, and information is being conveyed accurately.
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Hey. TH-cam happened to recommend this video to me and I want to say a couple of things:
1) Please warn people that working with power components like lithium batteries could potentially be unsafe.
2) Lithium batteries are serious Class D fire hazards and the fire cannot simply be suppressed by water.
3) You don't give much in terms of directions and that could lead to serious consequences if someone "follows" what you did and ended up with a electrical and metal fire because they accidentally shorted the circuit.
4) You should mention that the lithium battery should be sourced from a reputable manufacturer and should have a protection circuit for safety and to ensure functionality. (Either built in or attached).
5) It is not safe to recharge the battery through the USB port as most USB power sources will supply 5V, overvolting typical 3.7V lithium batteries.
6) It is not safe to recharge the battery with the barrel jack because it can accept power supplies higher than 3.7V (commonly 5V, 9V, and 12V) and can accept sources of different polarity (e.g. center-positive or center-negative).
7) You should generally use a BMS (battery management system) to charge lithium batteries.
8) Not only the 3mm LED, but SMD batteries generally need power-limiting resistors, unless one is built in, which you wouldn't know without:
9) A parts list with part IDs and, even better, an accompanying datasheet.
10) You also shouldn't just post a video without linking to a circuit diagram for further review.
I'm not saying that making a video about engineering or electrical work is bad, but make sure that the audience is properly warned, requisite information is given to ensure that people watching the video without any context aren't being put in unnecessary danger, and information is being conveyed accurately.
Thank you for your feedback. Your feedback is well taken.
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