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  1. Charging battery from another battery - All About Circuits

    May 22, 2015 · I want to charge 5V battery from 12V battery. I attached 7805 voltage regulator with 12V battery. How many 5v batteries can i charge with this 12V battery ?

  2. How to charge and discharge a battery simultaneously?

    Mar 9, 2014 · On cloudy days the battery is being charged, but the load exceeds the charge current. So the battery is being charged and discharged at the same time. I do not use an isolation diode, but the …

  3. Current limiting resistor for battery charger? | All About Circuits

    Jan 8, 2014 · I made the charge controller myself, and I was considering using a lower power source to charge the battery, but it did not perform to my expectations, so I have decided to use an alternative. …

  4. Lead-Acid Battery Charging - All About Circuits

    Apr 27, 2016 · The battery charge current rating is the maximum charge current (not a minimum) that you should use (.39A in this case). It will indeed absorb more than that if the charger can deliver it, …

  5. Refurbishing vintage 12V battery chargers. - All About Circuits

    Apr 7, 2024 · The battery negative goes through what I'm guessing is a thermal breaker, and then through the diodes back to the transformer. Would this be an example of a positive-ground circuit?

  6. Using a DC power supply as input with a solar charge controller

    Jul 6, 2024 · AND, what sort of battery charger will demand a "neutral connection" instead of simply the correct ac voltage supplied to the mains input terminals??? Maybe. I use a 1500W utility DC power …

  7. How to control charge and discharge mosfets for li-ion battery?

    Apr 27, 2023 · I made a simple BMS and placed 3 series of li-ion cells, voltage, and current sensors to read data but I have actually two problems. 1. I need some sort of sensor or something to detect if …

  8. Charging a battery with an alternator with electric motor

    Jul 7, 2017 · The concept of using a battery to power a motor to drive an alternator to charge the battery is very old but simply doesn't work, because of all the mechanical and electro-mechanical …

  9. How to charge and discharge a battery simultaneously? ..#2

    Nov 21, 2020 · The lead acid battery does not need a sophisticated charging system and damage will be done to the battery if the voltage drops for a relatively short time, probably 10's of hours, actually …

  10. Best and fastest way to drain a battery - All About Circuits

    Nov 15, 2012 · What's the best and fastest way to drain lithium ion batteries? I have about 10 14V lithium ion batteries to fully discharged right now I'm using an halogen lamp but it takes about 2-3 …