• RE: LTC3305 Testing Method

    Hi chinkiat,

    We think that you really need several supplies to act as batteries to connect to all the BAT locations. Either you get multiple-output battery simulator or build your own. An example is something like below. Several channel isolated flyback…

  • RE: How to consider auxiliary cell for LTC3305?

    Generally, supercapacitors are better for applications that require lots of power for a short time, and lead-acid batteries work better for applications that require lower power for a much longer time. Also, supercapacitors tend to have a much longer…

  • ltc3305 balancing current too low


    I have ltc3305 battery balancing circuit using two series batteries and an aux battery.  All batteries are 9 A.H types. Circuit balances the batteries however balancing current is about 20-30 mA eventhough series battery voltages are about 13 and…

  • LTC3305 UVFLT & OVFLT Operation

    It isn't clear from the data sheet the UVFLT and OVFLT outputs are pulled low while any battery in the stack exceeds the voltage limits, or only when the individual battery that exceeds the limits is being checked for connection to the AUX battery.…

  • Lead Acid Balancer - LTC3305

    I am currently working on Battery management of four series connected lead acid batteries and i came across this LTC-3305 chip, but i didn't get a clarity on how to choose AUXILARY BATTERY which is used to balance the batteries. Can anyone please help…

  • LTC3305 for Dual 24V Batteries


    My electric scooter is powered by a stack of two 24V batteries connected in series. (In fact each battery is a stack of 6 cells of 4 .. 4.05V, but I don't have easy access to each cell)

    Is there any way to use the LTC3305 to balance the two…

  • LTC3305 Auxiliary cell charging speed

    Hi, I would like to use LTC3305.

    So, I have a question. Please help me.


    I am experimenting with the LTC3305 evaluation board.

    Use a super capacitor for the auxiliary cell,
    Lead batteries are used for BAT1 ~ 4.

    I connected…

  • LTC3305 need for auxilary battery


    I got a new project to design a balancer for 4x 12V lead acid batteries. The LTC3305 appears quite often.

    Until now, i know only balancers for LiPo battery packs which where connected while charging. There was never a need for an auxilary battery…

  • LTC3305 - behaviour with batteries disconnected?

    I have an application where I am trying to balance 4 series-connected lead-acid batteries in a backup power supply. I recently started cycling the batteries more frequently, and have started measuring the individual battery voltages, and have noticed…

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