Timeline for Building a phone charger 500 years ago
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
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| Nov 3, 2019 at 23:04 | comment | added | Russell McMahon | I was referring to the condition described in your first paragraph - a single battery on its own with whatever protection it has being internal to the item. In that case some examples have a series fuses designed t one time limit gross discharge for safety reasons. I agree that with many batteries and situations inbuilt protection circuitry will prevent this happening. (They usually use back to back N Channel MOSFETs to form a "switch" and a current sense resistor to. ) | |
| Nov 3, 2019 at 3:56 | comment | added | jw_ | @Russell McMahon Can you provide some reference? Short circuit won't kill the cell, that's the most important function of the protection IC. The fuse (if any, I suppose there is no fuse in smartphone battery) will only function in case the protection IC fails, i.e. a second level protection. | |
| Nov 2, 2019 at 16:19 | comment | added | Russell McMahon | Warning: Over V MAY be OK but may not. | SHort circuit may cause an in cell overvoltage fuse or control circuit to operate and effectively kill the battery. | |
| Oct 23, 2019 at 0:30 | history | edited | jw_ | CC BY-SA 4.0 |
Adds an very important reason
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| Oct 22, 2019 at 7:23 | history | answered | jw_ | CC BY-SA 4.0 |