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I get a solid two hours out of the battery on DerpyPuter.
What I dislike is the percentage lying to me.
It goes from 35% to 17% almost instantly and in the few seconds from that to plugging it in, it will show 0% when mains are restored.
I have no idea how to make the battery level show the real amount.
try letting it run completely out and letting it set for a bit, then plug it in and see what it does...panzer guy
ReplyDeleteYou can't. The software is following input from the battery itself. Function followed is output from the rechargeable battery. It's signs that the battery is going Tango Uniform.
ReplyDeleteCan you replace the battery in the Derpy one? That's about the only thing you can do, short of keeping it plugged in all the time.
It's a brand new Chinese made battery. FuzzyGeff has stated he never tested the battery life past moving it from one wall plug to another. The battery level and Ubuntu might not be talking correctly.
DeleteBut if the behavior is consistent, I can work around it.
DerpyPuter's battery likely speaks SMBus, a variation on Philips I^2C communication protocol they developed so the various parts of a TV could talk. If you had access to a TI/Benchmarq EV2300, tjeir BQ Studio software and the SMBus happens to be unlocked, you might be able to reset the capacity to about 80% of original and it would chug on forever... otherwise, it is a fine line between over-discharged and fully discharged, but _if_ you can get it down to 3V per cell, then fully charged to 4.2V per cell, then dropped again and charged again, the Coulomb counter _might_ see it as a complete learning cycle and play nicely. There is a lot of risk to cycling outside the host, if you don't have equipment to watch the voltage and switch back to charge at the right moment.
ReplyDeleteGood luck!
MiketheEE
Or I can remember that 35% is, effectively, zero and keep an eye on it!
DeleteI think Marv has stuff to measure batteries, but we'd have to dismember the pack to extract the cells to do the measuring.