Timeline for Is this HP laptop battery — that has been fully drained — safe to use?
Current License: CC BY-SA 4.0
6 events
| when toggle format | what | by | license | comment | |
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| Feb 25, 2020 at 14:19 | vote | accept | Jeff | ||
| Feb 25, 2020 at 2:51 | comment | added | Jeff | There is a trick to actually balance the 3 parallel cell voltage, though it is kinda lame and not really worth it. The cell pair that hit 4.2V first b/c of capacity loss will self discharge faster than the other 2 b/c it is at a higher voltage. So when it drops low enough, you can charge the battery again. This will charge all 3 cell pairs, bringing the other 2 closer to 4.2V. It's slow and you gain like 0.2-0.3V per try, but it is possible to balance them. However, it will wear that damaged cell pair even faster and lower it's lifespan. You will also lose the balance once you discharge. | |
| Feb 25, 2020 at 0:19 | history | edited | Giacomo1968 | CC BY-SA 4.0 |
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| Feb 25, 2020 at 0:08 | history | edited | Jeff | CC BY-SA 4.0 |
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| Feb 24, 2020 at 23:09 | history | edited | Jeff | CC BY-SA 4.0 |
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| Feb 24, 2020 at 23:00 | history | answered | Jeff | CC BY-SA 4.0 |