LIR Rechargeable Lithium ION Button Battery 1. Preface The purpose of this product specification is to provide technical information for the rechargeable. Model: LIR Prepared By/Date. Checked By/Date. Approved By/Date. Customer confirmation. Date. NoteKindly please sign on the above and send it back. LIR datasheet, LIR pdf, LIR data sheet, datasheet, data sheet, pdf, etc, RECHARGEABLE LITHIUM ION BUTTON BATTERY.

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I took the guts of the Solder Sniffer project, which consisted of an MCP for the charge controller, and modified it a bit to charge an LIR The main change needed was the value of R3, which is responsible for setting the max charge current. For the LIR, the max charge current is 35mA. To get a decent connection to the USB socket, I tinned each of the pads a bit.

The value of R3 can be adjusted from anywhere between 28K and 67K. Of course, the higher the resistor, the less charge current and thus the longer the battery will take to charge.


LIR Datasheet(PDF) – List of Unclassifed Manufacturers

I wanted the charger to be as compact and simple as possible. Adobe Portable Document Format – View all 8 components. Tin the ground solder pad under the battery holder BT1. This step is required in order to ensure a good connection when the battery is inserted. All that should be required here is an even distribution of a thin layer of solder on the square ground pad under BT1.

Although only the 2 outer pads are actually used by the PCB to provide voltage, it is a good idea to tin the middle 2 pads as well. If LED3 lights, move onto the next step. View all 7 instructions. Become a member to follow this project and never miss any updates. About Us Contact Hackaday.

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Similar projects worth following. The Hackaday Prize. Description This is a very small and affordable lithium coin cell charger.


LIR2032 Datasheet PDF

It’ll charge several 20mm type coin cell batteries. The PCB is available to order from the oshpark links below. All files, including BOM to reproduce this project have been included and linked to in my github repository. I had the need for an LIR coin cell charger to power a few projects. Unfortunately or fortunately depending on how you look at itthe charger I had ordered off Amazon didn’t work, so I decided to build my own.


Testing the newly charged batteries with my POV fidget spinner. Tin the 4 USB plug pads. Solder power status LED indicator. Sign up Already a member? Similar Projects The Hackaday Prize.

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