Questions tagged [battery]
In electricity, a battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy.
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Battery monitor
I would like to build up a 'smart' battery for my RaspberryPi 3 and integrate it trough the OS.
The electronics part is the easy task in this game. The complicate task (for me) is to find out how to ...
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Will this DC step down chip allow me to power Raspberry Pi using AA batteries?
I understand that typical alkaline batteries lose voltage as they die, making them a poor choice for sensitive electronics without proper handling, and that lithium AA batteries are usually slightly ...
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How do I turn off my Raspberry Pi when it's connected to a battery pack?
I currently have my Raspberry Pi set up such that it's connected to this assembled
Adafruit PiTFT - 320x240 2.8" TFT+Touchscreen for Raspberry Pi. I am also powering the Raspberry Pi with a USB ...
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Measure SoC (Juice left) in battery
I'm powering my raspberry pi with 2 no-break batteries.
I want to know if is there any way for me to know how many percent of the battery is left.
If is there anyway to measure it would be great so I ...
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Read load of battery via USB
I don't know if it is the right forum to ask the question but I just post it here.
I have a power bank connected to my rpi b+ and I want to ask if it is in general possible to read the current load ...
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Powering Raspberry Pi 3B+ with Multiple Attachments: Recommendations for Portability
Ok so I'll try and keep this short and sweet. Basically, I have all these attachments for my Raspberry Pi 3B+
Raspberry Pi 7" Touchscreen
Case for Touchscreen w/ Cooling Fan
Raspberry Pi Camera ...
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How to connect SD card and battery to Pico?
I have been looking into components I need for a MicroPython project. I needs to be battery powered and be able to read/write to a removable SD card.
For this, I have discovered SD breakout boards. ...
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Battery Information on Raspberry Pi
I am currently using PiSugar 2 Pro for my Raspberry Pi 3B+. While I know that PiSugar has its own server where you can check on battery level, I was looking for a more direct integration with the OS, ...
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How to change the color of the desktop background programmatically?
A similar question, (How do I change the Desktop wallpaper from the cli), was asked previously where the person wanted to know how to change the wallpaper.
Going through the answers, I discovered that ...
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cheapest UPS for pi4 [closed]
I am looking for a better/cheaper way to do power-backup in case of blackouts.
Right now it is a PI4 I need to power, and it is powered by a 12V AGM battery (12Ah)
PI4 <-> USB-C cable <-> ...
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24/7 Solar panel + battery to power a Raspberry Pi Zero W [closed]
I need to create a system to have a remote bees monitoring.
In this place I haven't the electrical energy. Basically I need to monitor some sensors (5 temperature and humidity sensors).
I'm not expert ...
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Rpi GPIO Push Button Circuit Grounding Problem
I have a little project where I power my Raspberry Pi Zero using a 12v Battery, via a small 12v to 5v regulator I bought from eBay.
I am going to connect a push button to the Pi as in the following ...
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How to extend battery life on custom pi laptop
So I'm trying to make a pi laptop based on this project with a few differences:
I use this display instead of this
Technically, I'm using 18650 cells, but at a slightly reduced
capacity
No Arduinos ...
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Lipo battery hat or attachment which supports seamless USB recharging
I just want to add UPS functionality to some of my flock of raspberry pis, and with an emphasis on portability.
One of the ways to get this is with certain USB battery banks. I have one here that is ...
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Running my Raspberry Pi and 7" screen off a battery
What I have:
Raspberry Pi 3
Raspberry Pi 7” Touchscreen Display
Raspberry Pi 7" Touchscreen Display Case
I would like to make this thing portable and would like to add a rechargeable battery.
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Battery power supply and safe shutdown on power outage
I'm completely new with Raspberry Pi. In fact I'm just planning to buy a Raspberry Pi 3 Model B, but I don't have anyone yet. I want it to be running 24/7 so I'm worried about power outages. I've been ...
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Using external cellphone backup battery as "UPS" for Pi?
I'm currently experimenting using an external power supply (for cellphones) as a type of "UPS" for my Pi. It seems to work quite well. Can anyone think of a reason why this isn't a good idea?
I got ...
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Portable Power Supply [duplicate]
I need guidance on how to calculate how long I can power my Pi from an external power bank when I have USB and GPIO peripherals connected.
I am considering buying this power bank pack. It says that ...
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Problem when trying to get a DC motor to run using the L298N H-Bridge?
My setup is as follows:
Using this motor controller board, I have one DC motor (I'm new to electronics, so I'm not sure when I say it's rated at 1.5V, because one 1.5V AA battery on its own makes it ...
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7.2V battery with Raspberry Pi
I want to use a 7.2V (4200mAh) battery with my raspberry pi but I need to convert the output to 5V (2000mAh), I tried the following formula:
Ω = V / A
but when I try to find the ohms the result is ...
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How to add Capacitors to Raspberry Pi
My goal is to add capacitors to the Raspberry Pi power-supply.
Currently I have my raspberry Pi plugged straight into a portable 5v battery, this works fine.
However, I want to be able to swap from ...
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Will my Pi running on a battery be damaged as the battery dies?
So I know that providing a Pi with too little power can potentially cause physical damage to the circuitry (brownout). I don't 100% understand how or why this happens.
I know that it seems a lot of ...
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Battery Power supply for Pi-3, LCD and transceiver
I am using a raspberry pi 3 model B (5V/2A), a sainsmart 7" lcd display (12V/2.5A), and a ESP8266 2.4Ghz transceiver (3.3V) for a project. It needs to be mobile, so what kind of power supply ...
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Reasons the Pico W doesn't work when powered by new CR2032 battery?
Currently connected to GPIO Pins as per guide/datasheet and it's not powering up.
Meanwhile I've got another same unit with the same simple setup/circuit except it's powered by 2 AA batteries and it's ...
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Shutdown on low power with INA219 UPS HAT
I have a Uninterruptible Power Supply HAT For Raspberry Pi (bought here https://www.cytron.io/p-uninterruptible-power-supply-hat-for-raspberry-pi) and there is an INA219 chip on it.
I'm using a python ...
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Raspberry pi 0w is making a humming/buzzing sound?
I have a problem with my raspberry pi 0w. The SOC is making a buzzing sound when connected to a li-po.
The li-po is 3.7 volts and 1200mah and it is connected to an Adafruit 500c (https://www.adafruit....
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Car battery life with raspberry pi 3 model B
=> Raspberry pi 3 model B powered with car battery
I have two questions :
1- How can I calculate car battery life ?
2- Is their negative impact for the start-up of the vehicle when I use his ...
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Is it safe to use this battery with the Raspberry Pi Zero?
I have two questions actually:
1) is it safe to use this battery and these wires with the raspberry pi zero?
2) if yes, where do i solder the highlighted (red square) ends to the zero board?
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Battery to power Raspberry Pi Zero and two generic motors?
I plan to build simple RC car/robot with "2WD Two Wheel Drive Round Double Deck Smart Robot Car Chassis Kit For Arduino". I couldnt find the exact one I have, but I assume they are all pretty much ...
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How to know when to pull the power from SSH
I've been playing around with my Pi on a battery recently. I have the Pi set up so that I can SSH into it. Using the standard commands(sudo shutdown -h now) to shutdown work at bringing the Pi down, ...
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Battery packs without "blip"
The Battery pack I am using for the has just one problem... plug in the pack to charge the pack itself, and it blips, rebooting the pi (not the mention shutting down most ungracefully.)
Are there any ...
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battery for B+ model?
Could one of these rechargeable battery packs work for a rasp pi B+? Klientool and BestBuy are some options I can packup locally, plus I like Klientools. Any tips greatly appreciated...
Klientools
...
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Is there any battery for Rpi that can be charged and used at the same time? [closed]
I'm making a security camera using Raspberry Pi 3B+ . I want suitable battery to power my rpi. Is there any suitable battery pack that can power Rpi at the same time recharge the battery? I also found ...
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AlphaBot, which type of 18650
The AlphaBot uses batteries 18650.
But does anyone know if it should be the ones with the button top or the flat top?
Heres a button top:
https://www.amazon.com/AllForBest-Protected-Panasonic-18650-...
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Running Raspberry pi 3b+ on lithium ion 36wh/7.4v question
I have built a little medical assistive device using the raspberry pi 3, I wanted to attach it to a backpack and test it in real life situations.
I don't have much money to purchase much things but I ...
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Is it correct to say that we have few cm computers but we still need a bulky transformer? [closed]
In a past I planned an arduino project, on the microcontroller side.
With the possibility to go idle and save batteries. But arduino is not a computer.
The reduced size of things like raspberry pi ...
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Making a battery pack UPS with GPIO signal
I'd loke to build a UPS for in-car use. I am powering my pi with a 12v to 5v DC-DC converter. I'd like to use a phone battery pack as the ones sold at dollar stores with a relay/transistor that sends ...
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Are there any battery packs than can act as a UPS? [closed]
I have an external battery pack, for my phone - it charges via USB. I was thinking I could use it to power my new Pi Zero - if the power goes out - but I realised the one I have cannot be charged and ...
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Low power warning when using pi with touchscreen
I’m using a raspberry pi 3B with this DSI touch screen from waveshare.
As a power source I’m using this battery hat, which according to the documents should provide 5V. The battery is also fully ...
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LiPo Battery HAT behavior
I was reading the description for LiPo Battery HAT for Raspberry Pi and it at best seems very unclear to me:
This is not a UPS! The Raspberry Pi will restart when you connect it to the Pi.
What does ...
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can I use a 12v car battery to connect to a L298N h-bridge to control two 12v dc motor [closed]
I am new to the raspberry pi world and electronic in general. so I am wondering if it is safe to hook up 20 AWG wires to a car battery and have those wires going into a L298N h-bridge to power 2 ...
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Get Measurements from Battery/Solar Setup
I'm planning a setup with an rpi3b+ and the pijuice hat (battery) and pijuice solar module. It is key to my project that I can access the following data digitally i.e. in the pi:
current power ...
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Raspberry Pi 4b- powerbank measure
I want to power my Raspberry Pi 4b with a powerbank. I know that I need a 3A powerbank.
The question is: How can I measure it? I want to get a percentage of it (which will be displayed over a website)....
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Battery supplied e-ink photo frame with scheduled wakeup time
I am building a raspberrypi zero eink photoframe. My aim is to create a photo frame that I would be able to put on the wall without cables hanging around, battery powered. In order to achieve this I ...
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RaspberryPi Zero W with battery life for 7 days [closed]
I know of different projects that are using micro processors - dont know if they are Raspberry models however - but they have bluetooth connection, wifi module and a camera attached. And they are re-...
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Battery Management System (BMS) [closed]
I'm making a UAV using raspberry pi and I understand that it does not require a complicated BMS since it won't have complicated circuitry. The only problem I'm facing right now is that of the BMS. I ...
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how to properly make a charging circuit -- 2s 7.4V to 5V 2A
I have 2 18650 li-ion cells, each at 3.7v
and this bay with this white connector
I saw on youtube that depending on the length of the cell, we can know whether they have integrated "invisible&...
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Can AA batteries have voltage or current spikes?
I'm a noob in raspberry pi and in engineering in general. I had an idea for a project but it requires it to be somewhat portable so I need to power the raspberry somehow. I read this article Where it ...
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Keep running Pi while charging batteries [closed]
I would like to build a simple automatic irrigation system with Pi zero, the thing is that I don't have access to electricity outside.
I thought to connect 5v solar panel + 3\4 chargeable batteries.
...
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How to make more efficient reading of GPIO
My (python) program (on Raspberry Pi zero W) turns on/off a GPIO pin (connected to a relay module) depending on the RSSI signal of my phone (connected via bluetooth) and the status of one more GPIO ...