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.

22 questions with no upvoted or accepted answers
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294 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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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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1answer
171 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) ...
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217 views

Raspberry Pi UPS with LiPo Battery

I have been working on a battery back up for my raspberry. The idea is classic: connect power bank to wall outlet and raspberry to power bank output. It works well with only battery power. But when ...
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0answers
84 views

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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0answers
1k views

Running my 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. In ...
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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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0answers
41 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 ...
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51 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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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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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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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 ...
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299 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 ...
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0answers
333 views

Using Raspberry Pi Zero W connected to LM7805 or dc buck converter from UPS LEAD acid battery

Planning to build battery backup for raspberry pi zero w that last for days from 12v lead acid PC ups battery. Parts PC UPS, https://www.youtube.com/watch?v=-Ur-D37-juo LM7805, https://www.ebay.in/...
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264 views

Using Raspberry Pi with Powerbank Accumulator

I wanted to power my Raspberry Pi 3B plus some sensors and an additional Huawei modem with a Powerbank. When turned on that's no problem, everything works fine. But I want to measure some enviromental ...
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39 views

2 Raspberry Pis 1 Battery

I'm working on a project, here's the deal... I have 2 raspberry pis (3B, and a zero w) and 1 battery (3.7V LiIon 1200mAh). I bought a PowerBoost 1000 (A "DC/DC boost converter module can be powered by ...
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0answers
47 views

Choose a boot partition based on rtc contents

We ship units which have an expected life in the field of ten to twenty years. They include an RTC with a replaceable coin cell. Most of the time the machines will be powered on, so the RTC battery is ...
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196 views

Raspberry Pi Backup Battery Hat V1.2 battery level

My question is about Raspberry Pi Backup Battery Hat V1.2 specification. Is it possible to see somehow level of battery discharging (% of battery charge) by using the operation linux system like ...
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2answers
272 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 ...
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0answers
352 views

Rechargeable battery for PI 3 and LCD

Currently working with a PI 3 and a 10 inch LCD, but as of right now I have 2 power cable, one for the PI and one for the LCD. I'm looking for a way to power the PI and the LCD with a rechargeable ...
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2answers
770 views

Battery Charging / Management Board Recommendations

I am trying to build a portable device using the Pi Zero W and some 5V sensors. For the power supply I thought about a power bank meant for charging phones. The problem is that to power the device off,...
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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 ...