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Laptop Battery Analyzer /Recycler
Absolutely great method to reconditioning batteries http://bit.do/reconditioningbatteriesThank you Gregory! :)
What is 7.2 mean?
Hi, there is any way to use this fantastic system to test the whole laptop battery instead the single cell?Thanks
why pin out of relay is 3.5 V. not 5V. but pin button is 5V. when i using relay. relay is flashing, because this relay is logic 5V
Hello, i`m noob in to arduino,I wana do this project, but i dont have this tipe of display, i have an SPI display 1.8 128*160, is it hard to change the program to display data on this display, Thank you!
This is an AMAZING device and can even be improved a little.I made a very similar device to test powerbanks at work about 18 months ago.A powerbank exploded in a user's pocket injuring him. We had relied on our supplier to test the devices. We set up a fairly rigorous testing regime. We tested not only our units but also the competitor's units and got to learn a huge amount about powerbanksWe eventually got hold of the exploding powerbank and found it was a fake copy of one of ours, very similar outside but without any protection circuit inside.Some notes:- * Our Chinese powerbanks seldom fail and when they do, they fail safe * They usually have an efficiency in excess of 83% * The power delivered is very smooth. Less than 10mV spikes. 0.4V to 0.7V total voltage variation throughout the cycle * Some of the competitor's powerbanks are not very good (read "dangerous!")Features I incorporated that may enhance any power measurement device:- * We rapidly sample 1000 times (to increase accuracy) and record the average, the max and the min in a spread sheet * This is repeated 40 times a second until the unit is discharged * We use a variable load (mosfets and some opamps) but have found that we always run it at 1 Amp. The technicians can then compare different powerbank models against each other. * Our customers sometimes ask us to test units that have been returned to them and the units generally (almost always) pass. The weak link in powerbanks is the power cable.A word of caution - Our company has come to rely on this simple device more than the sophisticated equipment used by our suppliers (not a good idea). We have challenged new suppliers on the results. The suppliers tend to get very annoyed when they discover out test equipment is an Arduino and some opamps, lying loose on a workbench...
You may have shorted two pins on the lcd, and double-check your variables in the code. This project is not too hard to make, it was my first arduino project (after blink :)I suggest you use Fritzing to draw your shematics. Much easier to breadboard.Look at the arduino website, and read, read, read.
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