Alternate LiFePO4wered/USB module with tabbed 3.2V 550mAh LiFePO4 cell instead of battery holderDesigned by Silicognition LLC in United States of America
LiFePO4 battery technology--made convenient for makers. 3.2V 550 mAh LiFePO4 battery included! What is it? This is an alternate version of my LiFePO4wered/USB modules. Instead of having a battery …Read More…
This is an alternate version of my LiFePO4wered/USB modules. Instead of having a battery holder with a AA size LiFePO4 cell, this version has a tabbed AA 550mAh 3.2V LiFePO4 cell directly soldered to the board. Since this version does not have a battery holder and the battery tabs are soldered to the top of the PCB, there are no power pins available on the bottom of the board, so you have to take the battery power from the JP2 0.1" connector footprint instead.
Because it seemed like a good idea. :-) With the number of charge cycles of the LiFePO4 cell numbering in the thousands, the cell really doesn't need to be replaceable. Most LiFePO4wered/USB users also seemed to connect to the JP2 connector instead of using the battery holder pins, so for those folks this version presents no disadvantages while providing a more compact, sleeker looking and 1.5 mm lower module.
It still uses the same awesome LiFePO4 technology: 3.2V nominal during most of the discharge cycle, 2.0 - 3.6V voltage range over the complete charge/discharge cycle (allowing it to power 3.3V circuitry without a voltage regulator), high power density, low internal resistance, and high number of recharge cycles, verified to be >=1000 while still retaining 80%+ of the original capacity! LiFePO4wered/USB puts this amazing cell on a convenient module that integrates a USB charger so you can easily make your own projects LiFePO4wered!
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Paul | Feb. 3, 2016
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