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    MAX712 NiMh battery charger problem

    Hello everyone, I hope you'll take few seconds to think about my problem, I actually did some troubleshooting. I just made a design for Max712/713 battery charger to charge a 2cell NiMh battery Input voltage is 6V, I took an MJD210 as mosfet. Please find the design in the picture below...
  2. S

    Charging circuit

    I am designing a hand cranked charging circuit for a NiMH battery. I have used a LM317 voltage regulator however im not sure exactly what output voltage to use for charging a single 1.2V AAA cell. Can anyone help?
  3. S

    Hand crank torch - NiMH charging

    Hi there, So I am interested in the charging of NiMH batteries, some websites say that they should not be charged over 0.1C, some say 0.5C some say not over 1C. I bought this wind up torch with a 80mah 3.6v batteries pack and noticed the current flow is around 200 mA, this is 2.5C. So my...
  4. J

    AAA NiMH Backup Battery Pack for 12V Automotive Use

    I have been asked to play a role in the design of a 12V backup battery pack that would be used to backup a vehicle security system and siren in exclusively AUTOMOTIVE applications. I have general electronics experience but no experience with the design of a battery backup system, and the...

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