Timeline for How to charge a LiFePO4 battery?
Current License: CC BY-SA 3.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Mar 9, 2016 at 17:59 | comment | added | Ian | The danger of improper and/or amateur charging of modern Lithium batteries can't be understated. cnet.com/news/why-are-hoverboards-exploding-and-catching-fire | |
| Mar 4, 2016 at 18:43 | comment | added | user13089 | The original poster has a valid point. I have an extensive analog, but older technical background. I am not familiar with the newer battery types and what's required to build, balance, and maintain. I pulled this post up looking for guidance on where to find accurate learning materials to teach myself. | |
| Dec 10, 2012 at 18:44 | vote | accept | golmschenk | ||
| Dec 7, 2012 at 20:34 | comment | added | DrFriedParts | As to size, the "battery manager" chip isn't the problem (you can get them in a few mm^2). The problem is the power path components. The switches, energy storage, and transfer elements (transistors, inductors, interconnect, etc) will have to be large enough to handle the current. If you want to support charging faster than tens of milliamps, you will rapidly approach tens of mm^2 board area. | |
| Dec 6, 2012 at 19:23 | comment | added | Spiked3 | on point #3 they may be reffering to how chargers can (and should) only charge 95% capacity for general use, 50% for storage, and 100% for competition only. Batteries will last much longer this way (number of charges before imbalance becomes a problem). | |
| Dec 5, 2012 at 22:14 | comment | added | Ian | If small size is your goal, you may want to consider replaceable batteries (i.e., you attach a fresh one and recharge the dead one someplace other than on the vehicle). Then, the on-board battery electronics only need to handle a low-voltage/high-current cutoff. Using the solar panel to charge the battery should probably be a separate question. | |
| Dec 5, 2012 at 22:07 | comment | added | golmschenk | I don't suppose there's some sort of "battery manager" for LiFePO4 batteries that's a small chip or something that can be mounted to a small robot without taking up much space? And could take as it's power supply a small solar panel? | |
| Dec 5, 2012 at 21:28 | comment | added | Ian | That's a fair point, I rolled some of the specifics into my answer. | |
| Dec 5, 2012 at 21:27 | history | edited | Ian | CC BY-SA 3.0 |
what chargers do
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| Dec 5, 2012 at 20:40 | comment | added | golmschenk | I plan to research it thoroughly before attempting anything. Asking questions is the only way I'll get to the point that I don't have to ask. What specifically do these charge-monitoring boards do and why? | |
| Dec 5, 2012 at 20:13 | history | answered | Ian | CC BY-SA 3.0 |