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SparkFun Electronics will be closed on July 3rd, 2015 in observance of Independence Day. Any orders placed after 2:00pm MT on July 2nd will be shipped out after the weekend. Thanks!

dab

Member Since: January 21, 2011

Country: United States

  • If this battery is charged with an external charger as proposed in the notes, does the ‘load’ connector have to be disconnected? I’d like to have the battery persistently connected to the system I’m developing, but am unsure if this is safe to design since it will also need to be charged.

  • I have used this component previously and really like it a lot. In my current project, I’m trying to move to a lithium polymer battery, and would like to run at 3.3V. However, the reader requires 5V. Do I need to have a voltage amplifier in order to power this device from 3.3V? Or is there a simple strategy to do this?
    I guess alternatively I could run 2 cells in series to run a 5V system overall, but this introduces challenges in recharging the cells it seems.
    Thanks for any advice or recommendations!

  • I’m looking at this device, but would like to integrate it with an arduino board with usb connectivity. Once complete, users will need to connect the arduino to their computers via usb. So, I want to use a rechargeable li poly battery in the project, but I don’t want multiple usb jacks (one for charging and one for communication).
    Does anyone have a strategy for how to integrate the charging with the connectivity?
    Thanks!

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