Timeline for What's bond between laptop battery cell quantity and mah? I need the highest possible capacity battery for Acer Aspire 7745G
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 13, 2019 at 7:20 | comment | added | towe | The other important aspect is the voltage. The battery claims to have 6000 - 6600 mAh at 11.1V, that translates to around 66,6 Wh of energy. What does it say on the original battery? I seem to find both 50 Wh and 99 Wh claims for the original power of a 7745G battery. | |
| Dec 12, 2019 at 16:13 | comment | added | Pranciskus | "Laptop batteries normally tell the capacity of an individual cell and how many cells they have", right? | |
| Dec 12, 2019 at 16:13 | comment | added | Pranciskus | Here I found this battery for my laptop and it shows real capacity to be 6Ah and 9 cells. So, does it mean that this battery has 6x9 (54Ah)? Because, this says that | |
| Dec 12, 2019 at 15:37 | comment | added | towe | I'd probably agree. Most manufacturers don't offer batteries over 100 Wh, since that's usually the limit you're allowed to take on planes as a single unit. If you can afford to momentarily shut down the PC, you could just buy a bunch of batteries and keep swapping them. Some laptops even allow a very short time of operation without a battery for this, but I don't think that applies to yours. | |
| Dec 12, 2019 at 15:30 | comment | added | Pranciskus | Thanks for comment, I probably need about 9 Ah. But I found maximum available only 7.8. Now I think, maybe better for me would be powerbank | |
| Dec 12, 2019 at 14:20 | comment | added | towe | For modern, quality, commonly used 18650 cells, you can expect up to around 3.5 Ah. At a nominal voltage of 3.7 V, that translates to just shy of 13 Wh per cell. | |
| Dec 12, 2019 at 12:50 | history | edited | Pranciskus | CC BY-SA 4.0 |
added 11 characters in body
|
| Dec 12, 2019 at 12:43 | history | asked | Pranciskus | CC BY-SA 4.0 |