Timeline for Calculate the Li-ion battery remaining capacity
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 4, 2019 at 11:30 | comment | added | Solar Mike | @AakashDey do a search on here for battery + monitor, then read and assimilate the results... | |
| Jan 4, 2019 at 10:44 | comment | added | Aakash Dey | @ Michael Karas, Ok. So, is there any other power management system/IC except gas gauge to monitor a Li-ion battery of 7.4V ? | |
| Jan 4, 2019 at 10:17 | comment | added | Michael Karas | I never said in my answer that a 'gas gauge' chip is required. You can choose to perform the accumulation function in your own software. It may not be as accurate if there are numerous power on/off's but is still better than some brain dead capacity estimate process. Keep in mind that trying to use only voltage readings to monitor remaining capacity is only useful for battery technologies that have repeatable and distinctive voltage discharge profiles. Li-ion batteries do not really have that at all. They tend to stay flat till nearly expired with output voltage more dependent on load current. | |
| Jan 4, 2019 at 10:09 | comment | added | Aakash Dey | @ Michael karas, actually previously I have used DS2438 IC for monitoring my 2 cell Li-ion battery(7.4V,2200mAH). But unfortunately it was not reading the data.( I have discussed about that previously on this forum having title "Battery power monitor ICs"). I have also searched alternative ICs like BQ3060 or BQ20z45,but as my battery is only 7.4v, 2200mAH (2-cell li-ion) so i think they will not be suitable for my application. That's why I want to measure the battery state of charge simply by measuring voltage. If that is not possible, then what kind of fuel gauge will be suitable for my work. | |
| Jan 4, 2019 at 9:23 | history | answered | Michael Karas | CC BY-SA 4.0 |