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BOOSTXL-BATPAKMKII: Charging and Discharging Problem

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Replies: 6

Views: 843

Part Number: BOOSTXL-BATPAKMKII

Hello,

I got a new BOOSTXL-BAKPAKMKII and was using it to power up my MSP430F5529. The system was working well and at some point it stopped. First, I thought that the battery was discharged completely. So, I plugged the fuel tank to desktop computer via USB cable in order to charge it. The "charge active" LED was on when I first plugged it. I left it for almost 48 hours, not on purpose. However, when I came back the LED was off. I tried it but the output is approx. 2 Volts. I plugged it again but this time the LED stayed OFF. I checked the connection and then I plugged it carefully and I saw that the LED is blinks for like tenth of a second and then goes OFF. I left it in charge for a while. 

Then I used a multimeter to measure the output voltages from both 3.3V and 5V pins. They both show around 1.5Volts. Interestingly both output decreases in a stable manner as they were discharging over a capacitor. More surprisingly even though I changed the switch from "Connect" to "Disconnect", I was be able to see the same output values around 1 Volt and the discharging patter. Now both output show 0 Volts, as they were discharged. 

Could you please help me about this problem?

Kind Regards

  • Hello Murat,

    The charge active LED only turns on if the current going into the battery is above a certain threshold. It sounds like a short could be involved. What are the jumper settings of both boards and position of the toggle switch? Does the MSP430F5529 work when powered through the eZ-FET lite?

    Regards,
    Ryan

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  • In reply to Ryan Brown1:

    Dear Ryan,

    Thank you very much for the answer. I left my office and could not provide you the exact jumper settings. The toggle switch was "ON", that's for sure. I used dip connected the BATPAK over MSP430F5529. It worked for couple of weeks and then stopped. 

    Before I saw your message I have tried these things:

    1. I had a BOOSTXL-BATTPACK as well. When I connected the LİPO of BATPAKMKII to BATTPACK module and try to charge, the "charging" LED was ON.

    2. I tried to charge the LİPO of BATTPACK from BATPAKMKII module, the "charge active" LED was ON.

    3. I powered MSP430F5529 with BATTPACK, everything was fine.

    4. I changed the LİPO's; that is I disassembled the LİPO from BATTPACK and connected it to BATPAKMKII. Everything worked fine. After half an hour I realized that the the system was off. I checked and found that the output of the LİPO was zero again. I tried to charge, no luck. So, it happened again. "Charge active" LED blinks for a very briefly and then goes off. To sum, the same thing happened when I use the old LİPO from BATTPACK.

    I am going to post the whole connections tomorrow.

    Best,

  • In reply to Ryan Brown1:

    Dear Ryan,

    As I said the toggle was "CONNECT". The BATPAKMKII was plugged on MSP-EXP430F5529LP launchpad.

    We are using 5V, GND, P3.3(RX), P3.4(TX) pins for a bluetooth communication.

    We are using a LMP90100 for 2 infrared temperature sensors. So there is an SPI connection between MSP-EXP430F5529LP and LMP90100. 3.3V, 5V, GND, P3.2(SCLK), P2.5(CSB), P2.4(DRDYB), P3.0(SDI), P3.1(SDO).
    I was using the system with BOOSTXL-BATTPACK. I have charged it couple of times without disassembling it. Then I got a new BOOSTXL-BATPAKMKII and kept using the system for couple of weeks until the battery went off. We did not change literally anything in the design. After the battery went off I tried to charge it but no luck.
    BTW, the system works fine when I power up the MSP-EXP430F5529LP via mini-USB connection. 
    As I said my previous message I am having the same trouble for both LİPO's and for BATTPACK and BATPAKMKII.
    Regards,
    M
  • In reply to Murat Can Mutlu:

    Dear M,

    Please make sure that all MSP-EXP430F5529LP eZ-FET lite jumpers are unpopulated when the BOOSTXL-BATPAKMKII is connected. I am trying to loop in someone who has more expertise with this battery BoosterPack to help answer your questions.  Once more, please send all jumper configurations.

    Regards,
    Ryan

    To better aid the community, please click on the "This Resolved my issue" button whenever a post answers your question!

  • In reply to Ryan Brown1:

    Dear Ryan,

    I am using only the pins and connections I wrote above. Nothing is connected to ex-FET lite jumpers. Moreover we did not change a single thing in the launchpad. But if you are asking something apart from these by saying "jumper configurations", I did not get it. I am sorry. Could you please provide me some more details?

    Btw, I forgot to mention that I always disassemble the (both) BOOSTERPACK from MSP-EXP430F5529LP and try to charge but it does not work. 

    Murat

  • In reply to Murat Can Mutlu:

    Hi Murat,

    Were you able to find any resolution to this issue? Do you have any updates to provide?  I will mark this post as closed, it will open back up once responded to.

    Regards,
    Ryan

    To better aid the community, please click on the "This Resolved my issue" button whenever a post answers your question!

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