Questions tagged [battery-charging]
Please specify the battery type in your question. Include chemistry (e.g. lead-acid, Li-ion), voltage, capacity (in A·h or W·h), number of cells and how they are connected (series or parallel) .
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High voltage at the Schottky's anode terminal (Hobby Li-Po charger circuit)
I'm pretty new at hardware side of things and trying to teach myself circuit and PCB design just as a hobby, so. bear with me if I'm annoyingly noob for you.
As a relatively simple first task, I ...
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Rechargeable battery in proteus professional 8
I'm trying to design a solar charge controller in Proteus 8 but I don't know how I'm going to simulate the charging of the battery. In Proteus, I don't think there are any rechargeable batteries (from ...
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Polarity Detection on Array Charging System for Autonomous Robot
Array Charging Concept
I recently became interested in designing a charging system for an autonomous robot. The key requirement is that precise orientation of the robot is not necessary during ...
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Is this charge controller datasheet schematic an idea circuit to use?
Background - Software Engineer with an interest in EE.
I'm looking to include a bq2000 battery charge controller in a circuit that I'm designing. I'm looking to use a bq2000 since it can use multiple ...
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How to wire a Voltage Current Meter Battery Capacity Manager to a battery?
I want to wire a Battery State of Charge Monitor device to a 48 Volt battery and I have absolutely no idea how to do that.
It's from ebay here:
https://www.ebay.de/itm/385038345502?var=652920379964&...
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LiPo Battery management circuits
I am new to creating PCB designs for specific projects and I essentially need someone to help me verify if what I have done is correct. The power source is a USB-C connection supplying 5V to the ...
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Layout of a LiFePo battery pack with serial and parallel cells
Due to space I need to build a LiFePo battery pack with 8 individual cells.
Each individual cell has 12V and 50 Ah, and the pack has to have 24V and 200 Ah. This would be the specific cell I plan on ...
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I tried charging my earbuds with OTG on a USB type A to A cable. But it got damaged. Why? [closed]
I have a USB type A to A cable. I connected an OTG (type A to C) on one end and an adapter on the other end. I then tried charging my earbuds case with it. The case got really hot while charging and ...
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Charging LiPo Battery with Solar Panel and Water Turbine Generator
I'm looking for a way to be able to connect a Solar Panel (5.5 V / 540 mA) and a Water turbine generator (3.3 V / 120 mA) together to charge a LiPo Battery of 4,000 mAh.
While using the solar panel ...
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MCP73831T-2ACI Not Terminating Charging
I have the following charging circuit which I've connected to a 12000mAh PiJuice battery ~ https://uk.pi-supply.com/products/pijuice-12000mah-battery. In addition, and not shown here, I have hooked up ...
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How do I charge a 4-cell Li-ion battery pack?
I have a 4-cell Li-ion battery pack, purchased from RS Components (code: 144-9416).
Link :
https://fr.rs-online.com/web/p/blocs-batteries-rechargeables/1449416?cm_mmc=FR-PLA-DS3A-_-google-_-...
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Use 2s LiPo Battery as Battery Cell for Microcontroller
Is there a convenient way to use a large 2s LiPo battery (such as this one) as a power source for a microcontroller and LED strip? Specifically I'm looking for the ability to seamlessly switch between ...
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Power bank or fire hazard?
I do have a bunch of 18650 LiPo cells, salvaged from various sources. Now, I happened to come across a variety of power bank cases on Amazon which mostly look like this:
Even a cursory look tells me ...
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Inquiry Regarding NTC Selection and Placement for ST L6924D LiPo Battery Charger
I am planning to create a lithium-polymer (LiPo) battery charger using the ST L6924D charging IC. Could you kindly recommend an appropriate NTC (Negative Temperature Coefficient) for controlling ...
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What is the function of the second MOSFET in this lithium-ion battery charger circuit?
I apologize if this an obvious question. This is my first time adding lithium-ion battery components to a circuit and I'm trying really hard to do all my homework and understand the function of ...
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5V USB-Power without Battery makes MCP73832T toggle the LED
My schema works as long as the Battery is attached to it.
In fact, it even works if I disconnect the Battery - EXCEPT that the LED1 toggles in that case.
My intention is to use the circuit either
5V ...
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18V battery charger showing hazardous voltage symbol on Fluke multimeter
I have this little drill battery charger and I was testing the contacts for output voltage with a Fluke 87V, and the result was "-0L" and was showing the hazardous voltage lightning bolt ...
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How to select the battery (kW, kWh and charge/discharge rate)?
A simplified example. The power consumption in a household during the day is 10 kWh and during the night is 4 kWh. Also, assume there are day (peak) and night (off-peak) rates. The off-peak rate is ...
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Will this battery charger with cut off circuit for a 3.7V, 350 mAh li ion pouch cell work?
I was looking for the simplest charger circuit for 3.7V, 350 mAh pouch battery.
I came up with this circuit. It uses a TL431 with an NPN transistor to cut off. It seems to work well, but I have ...
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Refined -dV termination method for charging NiMH batteries
In a radio control forum I have read the following statement:
The minus delta V bump that is indicative of end-of-charge is much
less pronounced in NiMH than NiCad, and it is very temperature
...
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Power adapter output voltage detection [duplicate]
Not sure if this is right place for this question, but since I don't know where else to ask, I will do it here anyway - if this is wrong exchange, please let me know ...
I have 35 W phone charging ...
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Optimizing wireless charging
I am trying to build a wireless charging system for a drone. I have a 3s Lipo battery and I would like to plug in a wireless charger transmitter into it. I will then plug the wireless receiver onto ...
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I need to replace this micro USB but can't find a female 6 wire
I need to replace this female micro USB but am not finding one with 6 pins. It appears there are 4 pins together then 2 more that are separated.
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Battery and power supply in parallel
I have the following connection to power an AC load.
Will it work at all? I am concerned about the following points:
The battery may discharge to a low voltage and the power supply will charge the ...
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Active battery equalizer, max current?
I have two 2x12, 50Ah LiFePo4 batteries. Charged via 24V LiFePo4 charger
Max current is 50A (By BMS). Real life: <15A discharge, 5A charge
It is unclear, how to choose the right balancer, by ...
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Ptron car charge adapter has 2 outputs, which one is safe for charging mobile? [duplicate]
Ptron car charge adapter has two output:- output 1: "3USB" and output 2:"1USB" But oneplus phone 20W charger has 5V and 4A output.
it has output 1: "3USB" and output 2:&...
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Is it possible to use BQ25629 as both a lipo battery charger and a stable output regulator?
I am a bit confused looking at the datasheet for the TI BQ25629 with regards to the SYS output voltage. Essentially, I have a 3.7 nominal voltage 290 mAh lipo battery that needs to provide around 100 ...
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Should I include a current limiting and reverse current flow protection circuit in a battery charger circuit? [closed]
I am designing a lead acid battery charger and would like to know the following.
Should I include a current limiting and reverse current flow protection (As shown in the image) circuit to keep the ...
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LiFePO4 Battery -- Float Voltage VS Bulk Voltage for indefinite charging?
Some background: I am building a rudimentary UPS with a CC/CV charger connected to a battery and into the input of an inverter.
I have a 12 V LiFePO4 battery with manufacturer's recommended charge ...
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Ender 3 with a battery powered backup
I wish to develop a battery powered power supply to provide uninterrupted power supply for long duration 3D prints in an environment where mains power is unreliable.
A regular ups power supply would ...
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Need support for ERC in KiCad
I am a beginner in KiCad and looking for support for following errors in ERC KiCad -
Below are the Eeschema snapshots for reference -
How shall I resolve these errors?
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Solution to Parallel Lithium Batteries with same VSUM but huge SOC difference
I have a query regarding charging lithium batteries in parallel. I have attached 3 batteries in parallel set dip switches correctly and connected the com wire to my solar inverter. I did not connect ...
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Help with selecting charging IC for LiPo battery charge management
I have a project for which I have a 1 cell LiPo battery, and of course I need a BMS to monitor it and charge it/ensure it doesn't get discharged too far. I also want LED indicators to inform of the ...
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Can LiFePo4 batteries be charged using an SMPS with adjustable voltage output?
Some Switched Mode Power Supplies offer a potentiometer to adjust their output DC voltage. Mean well's LRS-350-24 power supply for instance has an adjustable range of 21.6 ~ 28.8V. Can it be used to ...
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Low Power Lithium-ion Charge Protection
I have ~100 mAh 6 V solar cell that I want to use to charge 18650 lithium-ion battery.
Purpose is to use a PIR sensor to turn on light when someone passes by,
I am not very confident about the ...
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Turning off a solar panel with a GPIO
This is one of those problems that seemed super simple at first but, after simulating, appears to be tricker than I expected, at least for my wannabe-EE brain.
The circuit I'm working with looks ...
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Lithium Ion Solar Battery Charger with current measurement
I have designed battery operated device. The current consumption is around 4ma.
The battery which I use , is shown in following fig. the following schematic I have used to cutoff solar panel when ...
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Battery Charger - Design of Circuit
Im Designing a Lead-Acid Battery charger, dont't needed that this charger it's the most sophisticated one.
As you can see in the attached image, It only consist of a power transformer, a ...
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Low consumption resistor pair
I'm working on a project that measures battery voltage.
The device, I designed, works on coin cell.
I have to extend battery life, that's why I used the following design
But it requires two pins
...
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I keep Blowing up my i2C (ISO1540) isolator when plugging and unplugging my battery
I am using a ISO1540 to read the SMBus of some BB2590 batteries. The relevant part of the circuit is shown in the images below
The issue that I am having is that sometimes when connecting or ...
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Best battery type for outdoor equipment
As per the title, I'm looking for a battery that can be left outdoors (in an enclosure) and withstand a wide range of temperatures, from around -5 to 40/45 °C.
It will be kept under charge constantly ...
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Battery (Charge-/Discharge) Efficiency Curve
I’m working on an university assignment at the moment and can't figure out how to do derive the efficiency curve of my battery.
I have a fully functional battery model (on current/voltage level) on ...
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Powering Raspberry Pi and 11 servos on one battery pack
I am working on making Sox from Lightyear using a Raspberry Pi as the main board. I have a PCA9685 servo controller that can drive up to 16 servos using I2C.
The issue I am facing is that my X728 ...
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Can this battery be charged?
I have a battery that looks like a lead acid battery, contains lead, and it's from one of those little electric cars that kids can ride on, so it should be chargeable, but it says on the casing not to ...
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Best approach to switch high-power charging port
I have a robot with a high-capacity 24V Lithium Ion battery, that is going to be charged with a 70A charger.
The robot is supposed to be able to toggle charging on/off through an input signal.
...
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3.7 V Li-ion rechargeable battery
I have a rechargeable flashlight that uses 3 Li-ion 3.7 V batteries. This flashlight works great the light is extremely bright and adjustable. It's one of those flashlights that plug right into the ...
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What thermistor for a TP4056 lithium charge module?
This TP4056 Li-Ion battery charger datasheet specifies an NTC thermistor be used for battery temperature sensing while charging. Is there any further specification I should know about the NTC ...
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Charging two 18650 cells connected in series?
It is easy to charge a single cell or cells connected in parallel with a single TP4056 module.
This question shows why this can't be done with cells connected in series (short circuit of the cells).
...
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Reason for P-MOSFET between the charge N- FET and charge pin of bq76930
I am currently working on a final year project which is a device like a power-bank, but this will be able to charge both phones and laptops.
After a lot reading and research I finally considered using ...
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How to charge a battery pack through BMS using same pins as for the BMS output
I'm bulding a 18650 4S pack for a speaker and I'm using a BMS capable of balancing and protecting the batteries like on the picture below. The manufacturer advertizes you can both charge and discharge ...
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