Markus Gritsch shared his LiFePO4 charger project in the forum: Since I really like using LiFePO4 AA and AAA batteries in some of my projects, I finally gave in and built a dedicated charger for them. Previously I used a lab power … Read more
Tag Archives: battery charger
App note: Get a constant +5V output by switching between a +5V input and a single-cell LI+ rechargeable cell
App note from Maxim Integrated on providing smooth power from two sources. Link here (PDF) Design provides a simple method for maintaining an uninterrupted +5V even while switching between the external +5V supply and a rechargeable single-cell Li+ battery.
Rohit Gupta made this LiTiny project, a tiny LiIon charger: In the end I had a LiIon charger capable of charging batteries @700mA restricted due to thermal dissipation limits of home made PCBs. Project details at Rohit’s blog.
From the comments on our earlier standalone Linear Li-Ion battery charger with thermal regulation in ThinSOT app note post, Jan writes: Nice chip, indeed. Unfortunately not easy to find stocked – here I can get it only from Farnell (5 euro … Read more
Dilshan Jayakody has published a new build, an automatic car battery charger: This is modified version of commonly available automatic car battery charger system. I obtain original layout of this charger from one of the commercially available Chinese car battery charger … Read more
After two DIY Li Ion chargers this week (first, second), here is a lithium iron phosphate (LIFePO4) battery charger. These batteries are a safer cousin to the standard Li-Ion batteries, but sacrifice some of it’s energy density for the safety. … Read more
Here’s another custom Li Ion battery charger and holder. Yesterday we ran a post involving a custom battery holder for cell phone batteries, today it’s a holder for a more conventional 18650 type Li Ion batteries. To make a battery … Read more
Miceuz designed 2 open source single sided boards for Li Ion battery chargers. He used the MAX1555 and MCP73831 ICs as the charging controller, power is provided through USB. We especially like his battery holder rig. For a long time … Read more
rsdio writes: SMBus is similar to I2C, and should therefore be easily connected to most PIC or AVR projects. Highly integrated, 850kHz/500kHz SMBus-programmable battery chargers: MAX17435/MAX17535, highly integrated SMBus™ battery chargers capable of operating at 850kHz and 500kHz, respectively. Unlike … Read more