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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2answers
716 views

Samsung 3.8 v battery + adafruit usb boost

I have a 3.8v / 3100mAh battery from a galaxy note 3. Can I use this along with https://makersify.com/products/adafruit-powerboost-500-charger-rechargeable-5v-lipo-usb-boost-500ma? The powerboost ...
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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 ...
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1answer
140 views

I can't power my RPi 3b with AA batteries

I'm trying to power my Pi 3 with 8x AA batteries wired to a 5V voltage regulator. I measured a voltage of 5.4V. I'm using the IO pins instead of the microUSB port. The Pi powers on but doesn't work. ...
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2answers
26k views

Powering the PI 3 Model B with a battery pack

I've recently obtained a Pi 3 Model B, with the official 7 inch touchscreen case, as well as the allied electronics portable case and I am looking at options to provide power to it. Currently, from ...
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1answer
85 views

Portable solar-powered .gif frame

Here's a project challenge: looking to create a portable rpi-powered .gif frame similar to this, except one that wouldn't require internet connection and would just store the .gif collection on its SD ...
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2answers
4k views

Measure RPi3 power consumption without external hardware

I power my RPi3 using a power bank for smartphones, and I'd like to check how much power the Pi draws from it while my project is running. I don't have any special equipment for power measurement. Is ...
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0answers
472 views

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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3answers
1k views

Can This UPS(UNINTERRUPTIBLE POWER SUPPLY) Run a Raspberry Pi for 24hours?

I am setting up an experiment that will need to run for 15 days straight and I am using a Raspberry Pi as a data logger. In my place power outages occurs from time to time. I am searching for cheap ...
5
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2answers
4k views

Automatic shutdown of Pi Zero on low battery

I am trying to build a battery powered Pi Zero, using a LiPo battery and the Adafruit Powerboost 500. I would like to be able to use the low battery output (LBO) on the powerboost to tell the Pi to ...
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1answer
3k views

How to check how much battery is left on my Raspberry Pi in the terminal?

Is it possible to check how much power is left on the battery powering my Raspberry Pi zero using the terminal?
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1answer
2k views

PI2B safe shutdown procedure on low battery and auto start

I have a RPI2B controlling a mobile CCTV setup. System runs on 12V (solar panels + batteries) with a low voltage disconnect (LVD) and PI powered by a buck step-down converter. RPI drives a relay via ...
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1answer
1k views

cansend to a CANBus device doesnt work

I am trying to control an Elcon battery charger (http://www.elconchargers.com/catalog/item/7344653/7638003.htm ) which outputs a DC voltage and current and can be set through a CANBus adapter. I ...
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2answers
307 views

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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1answer
995 views

How to measure battery voltage?

I'm using a battery as my power supply. Is there any command or library to check the battery voltage? I want to monitor the battery discharge.
4
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1answer
7k views

How many AA batteries do I need to power a raspberry pi zero and for how long does it last? [duplicate]

Since the raspberry pi zero takes less power to power up. How many AA batteries do I need to power it up to play a movie in a loop? And how long would this last?
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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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1answer
179 views

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 ...
2
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1answer
1k views

Very small sized battery for RasPi Zero? [closed]

I have an idea for an embedded system with the Pi Zero, but for this I need a very small and light weight (<40g) battery which can power this little thing for about 15 minutes. I am aware of this ...
17
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9answers
93k views

What can I use to power my Raspberry Pi Zero with rechargeable battery?

Is there a 5 V rechargeable battery and cables compatible and comparative in size with Raspberry Pi Zero? I don't want to have to plug my Raspberry Pi in every time and nonrechargables get ...
5
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3answers
2k views

Powering the Pi from battery (power consumption)

I've got a Pi 2 B+ and I plan on using one of those portable battery-powered phone chargers to power it. I'd like to get about 8 hours of continuous power. I'll also be powering a 5-inch LCD and a ...
1
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1answer
3k views

Using an I2C Battery Fuel Gauge Device Driver

I have connected the TI-make battery fuel gauge and charger to the I2C port of my raspberry Pi and eventually plan to control them using RPi. I have some minimally working code. However, I found a few ...
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1answer
2k views

I2Cdetect doesnt detect my I2C device

I am using a BQ27441EVM-G1B. It is a TI battery fuel gauge board, that is used to measure the battery voltage, current and charge left etc. Datasheet - http://www.ti.com/lit/ds/symlink/bq27441-g1.pdf ...
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1answer
339 views

Controlling a backup battery after shutdown

Connected to my pi is an adafruit fona (a cellular phone), and a manhattan usb hub with external power. My pi, as well as the fona, are connected to a 3.7V 1200mAh backup battery. The pi is configured ...
2
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1answer
414 views

Getting more voltage/amperage from the Raspberry Pi 2 GPIO pins

So yeah, I'm trying to get some more voltage/amperage from the GPIO pins on my Raspberry Pi 2 Model B. I've ran several tests and I'm only getting about 3.2V and 30-40mA. This cannot do much, there ...
7
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1answer
3k views

Raspberry Pi battery state?

I use a power bank to power my Raspberry Pi, and I want to create script to turn off the Raspberry Pi when the battery level is low, but I cannot find any command to visualize the battery level. I ...
4
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1answer
1k views

Remotely connecting to the PI to download images

I'm trying to build a little project (my first) with my Pi which is running Raspbian. I want to set up a camera on my piece of land where I'm going to build my house to take some time lapse photo's. ...
11
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3answers
1k views

Powering Pi from Ni-MH batteries

I would like to power my RPi2 from the 5V GPIO pin via 4 Ni-MH rechargeable batteries (4.8V) but I'm afraid about peak current. Can it somehow produce more than 2.5A? Should I use a fuse to limit that ...
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2answers
1k views

Raspberry pi location detection [closed]

Id like to create a small "car" alike robot (4 wheels and steering via servo) that will travel around my house. Id like the robot to be able to go and charge itself when its batteries are low, I do ...
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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
463 views

Running a Raspberry Pi off of a Wii Balance Board

I am working on an internet connected scale. I want it to theoretically run forever without my intervention so I picked up this battery pack for my balance board. I plan on having the board constantly ...
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1answer
2k views

Power with batteries on 3.3V

I've already investigated how to power the RPi with batteries (I did some tests with AA batteries and with 18650 batteries) using a 5V "boost" step-up DC-DC converter, in some other questions here. ...
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1answer
183 views

What to buy to build a simple robot with Raspberry Pi? [closed]

I live in Pakistan. Here, there is no ebay or amazon so I cannot order things from there. Now tomorrow I am going to shopping out of city and I need some help from the community. Here's the ...
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1answer
189 views

Powering via a motion sensor using a battery pack

I'm new to Raspberry Pi and I had a few questions. I want to connect a raspberry pi to a e-ink display, it will retrieve content over wifi. It will only display when a motion sensor picks up on light ...
0
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1answer
27 views

Choosing the right converter

I'm having trouble calculating the right converter to buy in order to power a Raspberry 2 from batteries. I'm using 6 batteries (6x1.5V) so I guess I'll need to get an UBEC Converter like this one. ...
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0answers
54 views

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 ...
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 ...
4
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2answers
7k views

Power Bank + raspberry pi 2, any throughts?

I am currently thinking about buying a Power Bank to use as a power supply for my Raspberry Pi 2. At the moment I am looking at the XIAOMI Power Bank 5V 2.1A 16000mAh. My questions are: Will it work ...
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1answer
134 views

My Pi won't boot after battery defect

my Pi A+ won't boot. Both leds are always on, no blinking. This happends after connecting usb powerbank to gpio pins to power raspberry. My Pi got hot and then... just died. I tried to reflash microsd ...
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5answers
10k views

Power Raspberry with LiPo battery

I have a LiPo batterery: EZ-power LiPo 4000mah - 2s 7.4 How could I power the Raspberry, I just know that Pi works at almost 5V.
4
votes
1answer
549 views

Making batteries last for pi outside

I want to use the pi to analyze the moisture of my plants and decide to water or not. I want it set up in the garden. There is no power supply, so the pi will need to run on batteries. The plan is ...
1
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1answer
1k views

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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4answers
192 views

Can you use a Raspberry Pi to write code that powers an onboard LED or motor or fan? [closed]

In other words, is it possible to solder on an LED or a fan or a motor (perhaps even a custom-made piece of hardware) and then write software that can send power from a battery to the added device? ...
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1answer
1k views

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 ...
2
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5answers
13k views

Will a Duracell 9V battery power my Raspberry Pi for 24 hours? [duplicate]

Will a Duracell 9V battery power my Raspberry Pi (plus camera module) for 24 hours? I've tried power banks and the 50,000mAh rating seems a bit exaggerated, considering I'm getting just 5/6 hours ...
31
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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 ...
6
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0answers
2k views

Running RPi on Solar Panel and battery [closed]

I’m quite new in electronic projects and so my basics are quite limited. I've been reading a lot regarding this topic (refer to the title) and I’m currently planning to buy the suitable Solar Panel, ...
1
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1answer
798 views

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 ...
1
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4answers
813 views

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 ...
0
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1answer
815 views

Viewing battery status Archlinux arm

I have a portable USB charger/external battery pack. The exact model is this one. My raspberry pi is running ArchLinux Arm. I am trying to view the battery status and other relevant information. ...
2
votes
2answers
861 views

Portable power supply for a PiHub?

I love my PiHUB and would like to have a or table power source, so I can make my projects mobile :) Is there any product that I could use? It uses 3A 5.2V. Alternatively I'd appreciate any ...