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I started out , when at work they had pile of battery packs for laptop computers , that no longer worked. Well I know that most (not all ) Battery pac...
Charging LI-Ion Batteries WARNING WARNING WARNING when charging LI-ION batties Be careful! they can be unstable and catch fire. I have never personal...
Parts List - Adrunio Uno or compatible ( ebay $20 ) - 16 X2 LCD display that uses a Hitachi HD44780 driver, They are very common, I have gotten sev...
Theory and Operation Li-Ion Batteries , when charged under no load have a Voltage of about 4.2 Volts , that quickly drops to about 3.9 Volts under lo...
4) After getting the parts together First thing to do is prep and connect the LCD dispaly , I used the basic setup of an LCD display as seen on the A...
next I take the Battery Holder . I attach the negative to Ground , and the Positive to Analog Input 0 . Between the analog 0 input and ground i put a...
Here is the source code for the Analyzer /* A battery life cycle tester using an Lcd as output */ // include the library code: #include // ini...
First put a charged battery In the Holder . Note the voltage above 3.0
Press the start button and watch and Wait. On top displays the seconds that have elapsed 83 seconds in this case the current voltage reading ,3.64 V...
And when it completes , the Top line has the total Energy that was in the cell, 629.24 Mah and how long it took, 2788 seconds or 46 Minutes and 28 se...
I would like to record the data Points to an SD card and then have the data accessible from a Web page through an Ethernet Shild , thats Why I didn't...
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