# Questions tagged [charge]

A fundamental physical property held by various particles, most notably electrons

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### How to control current to charge batteries?

I have an Arduino project that is powered with a 1s battery pack (multiple 18650 in parallel). I use following module to protect against overcharge/overdischarge : https://aliexpress.com/item/...
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### Solar charge controller

I have a question related to pwm charge controller .If I have 120W,22V PV pannel and i have to charge a 12.8V ,54Ah battery,which solar controller to use, pwm or MPPT?
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### Charging board cuts out when unplugging USB cable

I’m using a Lithium battery charge/discharge board with 5V regulator and USB-C input to power a gaming handheld. It’s important that I be able to run the handheld and charge the battery at the same ...
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### TP4056 STDBY or CHARGE COMPLETED PIN PROBLEM

I have charger circuit TP4056 based. My battery capacitY is 1100mAh(LIPO). Charging current is 580mA according to datasheet that has R9. While I am charging the battery, i read 0V from BAT_CHG pin. ...
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### Equation for total charge time of a capacitor in a half wave rectifier circuit

simulate this circuit – Schematic created using CircuitLab For the above circuit I want to know if there is a formula that can give me the capacitor voltage as a function of time. I'm not ...
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### How do Fuel gauge ICs compensate for battery aging?

I came across this Fuel gauge IC recently and although I understand how the SOC is determined, I do not understand how the age compensation constant(the one used to determine the actual SOC) is ...
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### Discharging a capacitor into another capacitor via inductor

What would happen if you connect a charged capacitor (charged to V voltage) with another capacitor of same rating via inductor. What would happen ? Will both capacitors will have same voltage and if ...
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### What is a charge on a conductive plate with a voltage between itself and a distant ground?

You'll find numerous examples of equations of capacitors and how to calculate the charge upon the parallel plates. But what is the charge on a conductive plate with a voltage between itself and a (...
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### Is charging a capacitor to a new DC voltage fundamentally lossy?

There has recently been a question about switching losses and Landauer's principle entered the discussion. I included it in my answer because I believe, a capacitor fundamentally cannot be charged ...
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### How to prevent body from influencing electrometer reading

I am setting up a lab involving a parallel plate capacitor connected to a 6V source and an electrometer. After disconnecting the voltage source from the capacitor, I attempt to find the charge stored ...
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### Current density in an ideal pn junction diode

I found that the current density is as above. I am going really crazy with this problem as I can't get any clue from anywhere. I have been googling for 10 hours and have no idea. Please help. The ...
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### Distribution of surface charges along the wire

Distribution of surface charges with a constant gradient is present along the length of the wire which produces a constant electric field along the entire length of the wire. This results in constant ...
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### Using constant current and constant voltage charging to fully charge a battery

I did not find a thread which properly answers this question so I hope by asking this here I can gain some understanding and it would be here for later use, From what I understand, Constant current ...
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### Static charge behavior (in ref to Grob's Basic Electronics book, 13th Ed, p33)

I have a question pertaining to the aforementioned book in a section titled "Potential between Different Charges". The paragraph goes as follows: When one charge is different from the ...
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