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BQ24650: How many V lead-acid batteries can bq24650 charge

hongwei duan
Intellectual 450 points
Part Number: BQ24650

Hello,

I have a project to charge 24V lead-acid batteries. I am not sure whether BQ24650 can meet my needs. I watched the process of lead-acid charging. When the overvoltage of lead-acid batteries is 29V in the process of overvoltage charging, I hesitated a little whether BQ24650 can meet my needs. If not, can you recommend other charging chips that can charge 24V lead-acid batteries?

  • 0
    TI__Mastermind 24075 points
    Hi user4960217,
    Max charge regulation voltage on the BQ24650 is 26V. When looking at your batteries, you want to look at the max voltage the battery can be charged to, and not the nominal voltage, to fully charge your battery. If your battery's max charge regulation voltage is within 2.1V to 26V range then BQ24650 can be used in your system.
    We do not have charger IC that can support beyond 26V charge regulation voltage.