Has been one idea, would like to improve my ultra-thin notebook power Laptop Battery supply time, but could not find a thick or large-capacity electric batteries and confused. If we adopt the charging port for power, that is, the power adapter replaced by an external battery, then theoretically be able to achieve this functionality, but we all know N410C is a 18.5V power adapter, if the use of lithium battery-powered, then Then at least five series.
Series of sessions can be calculated for each lithium battery supply voltage is 3.7V-4.2V, 4-series before they get the 14.8V-16.8V, up to less than 18.5V nominal value, while if we adopt the words of the battery 5 That would be 18.5V-21V, voltage is too high, do not say, another five built-in lithium battery in series to give the one hand, a waste of battery-powered electric power did not say, on the other voltage is already higher than the nominal voltage of more than 10% indeed it was rather dangerous. And Li-ion battery protection circuit must be used in order to maintain the safety and long-term lithium batteries Apple PowerBook G4 Battery to use, but 5 cell Li-ion battery protection circuit is very small.
The most common laptop batteries are usually three or four series notebook needs to be the voltage, the basic 5 series does not use electricity, and therefore intends to remove from the laptop battery protection circuit to use the method can only give up the idea.
This problem has been put on hold until now, know that I found this post: There is a saying which I am most concerned about:
Disclose key specifications sticker on the back: two kinds of usage patterns optional!
One is 18.5V4.9A charge model output;
One is to never had before 15V6.0A boot mode output, just to maintain the boot and will not charge the battery Apple PowerBook G4 15inch Battery! !
(At this point the power supply how to protect the root causes of the battery has been announced, and that is by manually switching the charge to ensure that there is no running out of battery power will not again be filled before the release, so reduce the number of charge cycles, extend battery life)
The original low voltage of 15V can be used to boot laptop, and would not charge the battery, Is this not exactly what I want.
15V power supply, then the note as long as four cells in series would be sufficient to power a laptop can give and will not waste any energy in the built-in battery charging on to the laptop Apple A1012 Battery. 4 batteries just to power a notebook, but also the minimum voltage is 14.8V, is very close to 15V, it is essential that all energy can be fully utilized.
Say do your job, following the step by step to achieve my goal.
All those in need to find the whole thing: DELL's original batteries, before the rest of the old laptop, notebook already bought, and removed the batteries have been used for other purposes, but the inside of the protection circuit has not expressed any problem, but not cylinder of the kind of.
A 4.8mm standard power interface, Taobao bought 3 yuan, or be bought sony.
Battery: In order to test the time being for the first down with my N410C battery Apple M8511 Battery.
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