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Seeking Feedback on Your Interest in Roadtesting a Battery Fuel Gauge Board

rscasny

imageI have a sponsor interested in roadtesting its Fuel Gauge board. I'd like to get your interest. I've added some background information and documents to review.

Here's some info about the board:

The nPM Fuel Gauge board (nPM FG) connects to a compatible Nordic Semiconductor evaluation kit. The purpose of the board is to act as a constant current sink device during battery profiling with nPM PowerUP desktop software. The battery model generated in nPM PowerUP can be used for evaluation of fuel gauge in nPM PowerUP and exported as an include file for use in any application using the Nordic Fuel Gauge algorithm. To use the nPM Fuel Gauge board you also need the nPM1300 Evaluation Kit, which would be provided to you.

Here's some documentation:

Fuel Gauge Hardware

RoadTester Poll

Thanks for participating in element14's programs!

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  • i am interested, but this is completely new to me, i don't know if i'm missing something, but, is fuel gauge in this context referring to measuring the remaining capacity of a battery?(this without having looked at the datasheet or anything, just from the title and quick read of what Randall wrote) or is this something to do with fuel as in combustible fuel? this being something new to me is a big part in why i'm interested, tho i'm not sure how interested would nordic be in having a newbie roadtest this without any prior knowledge!

    edit: now having read more on this board, i'm definitely interested in applying. after my bike's battery died, i've been manually characterising the individual cells in what's been a very tedious process to try to rebuild the battery itself. It would be cool to see how this board does it, even if it's for much lower capacity batteries than a bike's

  • in reply to Anthocyanina

    Fuel gauges are the thing that give you the battery charge percentage from past and present voltage/current readings. The characterization mentioned here is only for making sure the percentages it gives back are accurate, this isn't a general purpose tool for working with batteries. It also has a capacity limit of 3000mAh.

    Turns out giving an accurate percentage is really really difficult, so manufacturers don't like sharing how they did it.

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  • in reply to Anthocyanina

    Fuel gauges are the thing that give you the battery charge percentage from past and present voltage/current readings. The characterization mentioned here is only for making sure the percentages it gives back are accurate, this isn't a general purpose tool for working with batteries. It also has a capacity limit of 3000mAh.

    Turns out giving an accurate percentage is really really difficult, so manufacturers don't like sharing how they did it.

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