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How does the system works if we replaces the already characterized rechargeable battery with different battery(different Chem ID) with same size compatible ?

Sudha Nayak S
Intellectual 380 points

Hi,

We are working on Li rechargeable batteries. Currently we are using particular battery type with specific Chem ID . Once we done with learning cycle we can use it for our product.

We have a general doubt that, In future if customer replaces that specific battery with other Li rechargeable battery with same size compatible, how does it work ? because there are several Li rechargeable batteries are available in the market with same size but they might have different Chem ID or in future that specific battery is not available in market due to some reason. Then we need to carryout entire learning cycle with new Chem ID, which is not possible every time. 

Could anybody help us to solve this doubt?

Best Regards,

Sudha Nayak

  • 0
    TI__Guru** 105590 points

    Hello Sudha,

    If your customer can insert any battery with the same package that will definitely interfere with the gauging. The same battery will have to be used otherwise it may correlate the voltage to the wrong SOC during relax period. Or the battery capacity may be larger/smaller then the battery you characterized.

    Sincerely,

    Wyatt Keller

  • 0 in reply to Wyatt Keller
    Intellectual 410 points

    Dear Wyatt, 

    Thank you for the information on this one. This is going to be difficult considering a long life cycle of the system of about 10-12 years or more while battery is the only part requiring frequent replacement. 

    I have seen other gauge-meters available in the market that allow any kind of Li-Ion battery to be supported with as long as it falls into standard Li-Ion chemistry domain. 

    Thanks and warm regards

    Dharin