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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1answer
39 views

Running a Raspberry Pi from a car battery using a Witty Pi 3 (sanity check)

I'm not totally certain that I understand what a Witty Pi 3 Rev2 does so this is by way of a sanity check that I have got it right. The documentation says "Thanks to the on-board DC/DC converter (...
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1answer
36 views

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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0answers
40 views

how to power a raspberry pi zero w, with a 2x18650 bay, through GPIO

I'd like to wire this bay to the GPIOs of a rpi zero w. The bay welcomes 2S 2x18,650. On each cell is written "9800mAh TR 18650 3.7v Li-ion". My requirements are : One micro-USB port must ...
2
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1answer
290 views

How can Rpi I2C read a Coulomb Counter, up to 18V, 10A?

I"m building an autonomous boat with a solar panel. The heart of the boat is a Raspi zero which contains a small program doing the navigation. I've got a 3S li-ion battery of which I'm already ...
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2answers
81 views

Using Relays to Power off then Cut power to Pi Zero

I have a raspberry pi zero that I am running off a battery for remote logging reasons. There is a low battery shut off module I have connected to the battery in case the battery gets below a certain ...
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1answer
72 views

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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2answers
271 views

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 ...
0
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1answer
22 views

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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1answer
27 views

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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1answer
164 views

Running Pi4 and touchscreen off battery

I am building a portable RPI 4 and touchscreen and am hoping to be able to run it off a battery or external power, through one external port (ie, on outside of enclosure, one microusb port shows) ...
2
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4answers
661 views

Using battery pack as a UPS

I need to use raspberry devices as mini servers. I'll need to install ~100 of them in different locations. In those areas, electricity power offs are quite common, so I'm thinking using a cheap usb ...
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0answers
50 views

Is there a reason my GPIO pins have a low voltage?

I'm currently using a Raspberry Pi Zero W running Pi OS Lite. I'm using the following external hats with it: PiSugar 2 Battery 1000mAh link Serial PiZero addon link PiOLED link Here's my situation: ...
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2answers
51 views

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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1answer
129 views

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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0answers
30 views

Audio Amp + battery = shutdown on high volume

I'm using the Raspberry Pi Zero W with a DAC, the MiniAmp from HifiBerry (2x3W) , and a pair of speaker 4Ohms 3W for making a connected speaker device. Everything is working great until, in order to ...
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1answer
76 views

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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1answer
54 views

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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0answers
20 views

Migrating From RPI 3A+ to CM3+ Lite

I'm migrating from the rpi-3a+ to a cm3+ lite because the product I'm making will be very small and the cm3+ is more for industrial purposes anyway. Ive decided for my case I will make a custom pcb ...
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4answers
94 views

Battery Solution for Raspberry Pi 3b

I am working on a project for which I need to attach the four raspberry pi boards on the ceiling of the room (one at each corner). The script that will run constantly scans the BD Address and the RSSI ...
0
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1answer
64 views

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 ...
4
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4answers
673 views

Voltage monitoring of battery pack (i.e. before voltage regulation)

I am looking to use four 18650 batteries and a step-down DC-DC converter to power my Raspberry Pi 4. The negative terminal of the DC-DC converter is common for the input and the output. I would like a ...
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2answers
104 views

powering a pi 3B using two 18650 batteries in series. what circuits do I need? [closed]

I have an raspberry pi 3B I want to use as the brains for a robot car. In my initial setup I used a power bank for the Pi and a powered the motors using a seperate pack of two 18650 batteries in ...
2
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1answer
90 views

RPi3 power consumption based on CLI or Desktop GUI. Which consumes more power? CLI vs Desktop GUI

I am planning to do a project where RPi3 will b run by a powerbank. But I am bit confused with power consumption and in my project I am not running any heavy load expect camera interface. In my case ...
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0answers
61 views

Isolate Raspberry pi from power supply on shut down

Ok Team I need to know if this circuit will work or if there is a better way. Use Case: I have a piece of machinery that is controlled via a Raspberry pi zero W. It just controls a relay board to ...
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3answers
22k views

Is it possible to detect input voltage using only software?

I'm a newbie to Raspberry Pi's, but one of the things I was thinking about doing is running it off batteries (I see many people do this) - that led me to concerns about shutting down gracefully. Is ...
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2answers
748 views

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 ...
1
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1answer
987 views

I would like to add a battery to my Raspberry Pi 4. Can i do this by soldering to tp7, tp12, or tp1 on the underside of the board?

I would like to add a battery to my Raspberry Pi 4. I am building a tablet that can be turned on and off by a switch that brings power from the usb port from a power bank to power the pi, can i tie ...
4
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2answers
2k views

Power Pi4 with USB-C Power Bank

Can a USB-C Power Bank be used to power a Pi 4 for off-grid or mobile uses where the Pi cannot be tethered to either a mains electric socket or a POE switch?
4
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1answer
232 views

Power off Raspberry Pi if charger of powerbank is connected and turn back on if disconnected

I have a (maybe trivial) problem. I want to power a Raspberry Pi (more specific a SteroPi) with a power bank. The power bank has the feature, that its output is always on. So even if I plug in a ...
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1answer
92 views

Raspberry pi 3 keeps rebooting

I am trying to make a simple robotic car with my raspberry pi. The problem is that when it reaches the white load up screen it immediately reboots itself over and over again. My raspberry pi is ...
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1answer
60 views

Small, Rechargeable LiPo and RPi 4B

I've started a new, more specific thread, here. I'm looking for a way to power my Pi 4B inside a 3d-printed laptop project (nothing has actually been started yet), and it would be great to hear what ...
2
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2answers
1k views

how do I automatically power off the raspberry pi and cut power every night and then power it back on each day?

Background I'm a student working on research project to develop a remote wireless sensor network of data loggers. Each data logger (aka node) is going to be retrofitted to a bird feeder that reads ...
0
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1answer
86 views

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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1answer
121 views

Solar Panel + Raspberry Pi B+ Revision 2 compatiblility?

Is the following product compatible with the new B+ revision? http://www.ebay.in/itm/Neewer-Solar-Panel-USB-Charger-For-Cell-Phone-MP3-PDA-/151730255896?pt=LH_DefaultDomain_203&hash=...
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1answer
42 views

How to correctly implement voltage and current monitoring from a solar panel?

Good day Given: Solar panel (with a maximum output current of 2100 mA and an output power of 25 W; Output voltage - 5 V). These parameters are stated on the seller’s website and may differ from ...
1
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2answers
157 views

Power Raspberry Pi using GPIO Pins and a 10A supply with 7805

I am currently working on a project where i have micro-controller,stepper drivers etc all powered through a single 12v 10a power supply. I was planning to use the same supply to power the raspberry pi ...
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7answers
107k views

Will any external battery power a Raspberry Pi?

I am working on a project that needs the Raspberry Pi to work without a mains connection. I have considered buying a 50000mAh USB power bank. Would this power a Raspberry Pi, and if so, would it ...
1
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2answers
444 views

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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3answers
208 views

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 ...
2
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2answers
1k views

battery power for RPI and IR LED bank?

I built a simple night vision set up using a model A RPI, pi NOIR camera, and car backup camera monitor. I made a simple infrared light by wiring 4 sets of 6 LEDs in series, so 24 total, let's see if ...
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2answers
179 views

Can I use Rpi 3.3V power pin (pin number 1, not GPIO signal pin) to power a 5mW green laser pointer originally powered by AAA x 2 = 3V bateries?

Let's say I have a device powered by 2 AAA batteries in series (1,5v x 2 = 3v and 625 mAh). Is it possible to replace the 2xAAA battery with the 3,3v Raspberry PI GPIO output? Or the 0,3v may be an ...
1
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1answer
54 views

Does a battery pack exists which does not need the microUsb power connection? [closed]

I'm building a small robotic car, which obviously needs battery power for it and the RPi. I've no problem with the battery pack for the car since it fits neatly into the chassis, but the RPi microUsb ...
2
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1answer
430 views

Battery Usage Pi Zero W for video stream

I am trying to do live video streaming from the rasberry pi, meaning the camera is recording a video and then transmitting the live video over wifi. What is the smallest battery I can use to power ...
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0answers
64 views

RaspberryPi is not provided with enough power

Im trying to learn robotics with raspberrypi but im having a problem. I have 6 AA batteries that are connected to a LM2596S adjustable voltage regulator module, Which then is connected to the ...
0
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0answers
293 views

Are there any battery backup options that work with a PoE powered Pi?

Looking to have a Pi (4) that is powered over PoE - are there any battery backup options (i.e. hats) that can be stacked with the PoE hat & supply power if/when the PoE fails (and then re-charge ...
21
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6answers
67k views

How can I stress test my Raspberry Pi

I recently picked up a battery powered USB cell phone charger and I'm running some tests to see what kind of battery life I will get. Right now I'm just testing at Idle. I want to also run a test ...
6
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3answers
3k views

Powering the Pi with 2 AA batteries

I've tested the Pi with a single 3.7V 18650 battery and this < 5$ power boost/power bank. It works, and this single battery runs for at least 1.5 or 2 hours. (Sidenote: during my tests, the ...
0
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1answer
49 views

How to connect components of an RC (and rPi) car to the battery safely?

I am building an RC car from scratch. I have a 6v motor with an appropriate mdb, a 5v hobby servo, a raspberry pi zero w, and an 2200mAh 11.1v 50 C battery. I will upgrade the motor to a higher ...
7
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2answers
2k views

Can I use a DC-DC step up module to power a Raspberry Pi from 2AA batteries?

I understand that I can use 4AA batteries and a step down module to get 5V and power the Pi, however briefly. However, now I'm getting real outrageous and want to trying powering the Pi from just 2AA, ...
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2answers
92 views

How can I wire a separate battery pack and control it with the 40-pin GPIO?

I am building a high altitude balloon and I need another way of bringing it down besides the balloon popping. I would like to regulate a battery pack with the GPIO on the Pi in order to heat a ...