As summer nears, having a reliable power source for your Raspberry Pi 3B+ becomes especially important if you’re DIY-ing outside or working in remote spots. I’ve personally tested several options, and let me tell you, the MakerFocus Raspberry Pi 4 UPS Battery Pack V3Plus 10000mAh impressed me with its dual-mode flexibility—whether running as a portable power bank or a stable indoor UPS. It’s robust enough to support Raspberry Pi 3B+ under heavy load, thanks to its 5V 3A output, and the LED indicators make it easy to monitor battery life and power status during long projects. Its overcharge and overcurrent protections are a lifesaver during intensive use or charging while running, which I found to be a real bonus during extended testing sessions.
Compared to others, this unit’s ripple reduction with LC filters ensures cleaner power, minimizing crashes or data corruption. After thorough testing against similar UPS systems, I can confidently recommend this product for anyone needing dependable, high-quality backup power. It’s a smart choice that balances performance, durability, and safety—making your projects safer and more reliable.
Top Recommendation: MakerFocus Raspberry Pi 4 UPS Battery Pack V3Plus 10000mAh
Why We Recommend It: This model offers a maximum 5V 3A output with low ripple (about 50mV), ensuring stable power delivery for the Pi 3B+. Its dual-mode operation makes it versatile for both portable and stationary setups. Unlike other options, the LC filter reduces ripple noise, preventing crashes and SD corruption during intensive tasks. The built-in protection features and LED indicators further enhance safety and usability, making it the best overall choice after comparing all features thoroughly.
Best battery for pi 3b+: Our Top 5 Picks
- MakerFocus Raspberry Pi 4 UPS Battery Pack V3Plus 10000mAh – Best long-lasting battery for pi 3b+
- MakerFocus Raspberry Pi 4 Battery Pack UPS, V3Plus – Best rechargeable battery for pi 3b+
- PiSugar S Plus 5000mAh UPS for Raspberry Pi 4B/3B+ – Best portable battery for raspberry pi 3b+
- Treedix 5V Uninterruptible Power Supply for Raspberry – Best power battery for raspberry pi 3b+
- Waveshare UPS HAT (E) for Raspberry Pi 5/4B/3B+ 5V 6A – Best Value
MakerFocus Raspberry Pi 4 UPS Battery Pack V3Plus 10000mAh
- ✓ Compact and sturdy design
- ✓ Easy to monitor status
- ✓ Seamless switching between modes
- ✕ Needs at least 2.5A input for charging
- ✕ Slight ripple noise during operation
| Battery Capacity | 10000mAh lithium-ion battery |
| Input Power Requirements | 5V 2.5A (indoor UPS mode), 5V 2.5A minimum (charging) |
| Maximum Output Current | Up to 3A at 5V |
| Output Ripple Voltage | Approximately 20mV (no load), 50mV (connected to Raspberry Pi 4) |
| Protection Features | Overcharge, overdischarge, and overcurrent protection |
| Power Supply Modes | Outdoor portable (battery-powered) and indoor UPS (external 5V power supply) |
You’re tired of your Raspberry Pi 4 shutting down unexpectedly in the middle of a project, especially when you’re outdoors or during long runs. That’s exactly where the MakerFocus Raspberry Pi 4 UPS Battery Pack V3Plus comes in.
I plugged it in, and right away, I noticed how solid and compact it feels—light enough to carry around but sturdy enough to handle daily use.
Setting it up is straightforward. The LED indicators give a quick read on battery status, charge, and output, so you’re never left guessing.
I appreciated the two power modes—outdoor portable and indoor UPS—making it versatile whether I was working outside or plugged in at home.
The UPS mode kicked in seamlessly when I disconnected the external power supply, keeping my Pi running without hiccups. The ripple noise on the output is minimal, which is great for stable operation.
Plus, the overcharge and overcurrent protections gave me peace of mind, knowing the battery won’t overheat or get damaged during extended use or charging.
Charging is quick via the TYPE-C port, and the indicator LEDs help track the battery’s health. Just a heads-up: if you’re powering the Pi while charging, make sure your input is at least 2.5A to keep everything running smoothly.
Overall, it’s a reliable, well-designed power backup that feels like it was made for long Raspberry Pi projects.
MakerFocus Raspberry Pi 4 Battery Pack UPS, V3Plus
- ✓ Compact and portable design
- ✓ Supports charge while discharging
- ✓ Clear LED status indicators
- ✕ Needs 2.5A input for charging
- ✕ Limited battery capacity
| Battery Capacity | Li-ion battery with dimensions 70mm x 41mm x 9.5mm |
| Input Power Requirements | Minimum 2.5A at 5V (recommended 2.5A at 3V for Pi 3B+) |
| Output Voltage | 5V with maximum current of 3A (USB-A output), ripple approximately 50mV under load |
| Charging Interface | Type-C USB port with overcharge and overcurrent protection |
| LED Indicators | 4 battery power LEDs, 1 power status LED, 1 charging indicator LED |
| Protection Features | Overcharge, overdischarge, and short-circuit protection with automatic cutoff at approximately 4A output |
While fiddling with the MakerFocus Raspberry Pi 4 Battery Pack UPS, V3Plus, I noticed something surprising right away — it’s surprisingly compact for how much power it packs. Its slim profile, just 70mm by 41mm, makes it feel almost like an overgrown smartphone battery, but it’s designed specifically for Pi projects.
It’s the kind of device you’d expect to be bulky, yet it fits snugly in your hand.
The first thing that caught my eye was its dual-mode functionality. You can use it outdoors as a portable power bank or indoors as a UPS.
Switching between modes is seamless, thanks to the microUSB and Type-C ports. The LED indicators are clear and helpful, showing battery levels and power status without fuss.
I tested it powering a Pi 3B+ during a power outage, and the transition was smooth — no sudden shutdowns or hiccups.
What really stands out is its support for charge while discharge. That means your Pi keeps running even as the battery recharges.
Plus, the overcharge and overcurrent protections give peace of mind, preventing damage during unexpected surges. The ripple reduction with the LC filter is a nice touch, ensuring cleaner power for sensitive electronics.
It’s simple to set up, and I appreciated the intuitive LED signals that show exactly what’s happening.
Of course, it’s not perfect. You need at least 2.5A input when charging, which might be a hassle on some setups.
Also, the battery capacity limits longer runtime — it’s best suited for short-term power backup or portable use. Still, for its size and versatility, it’s a handy upgrade for anyone tired of flaky power supplies or frequent outages.
PiSugar S Plus 5000mAh UPS for Raspberry Pi 4B/3B+
- ✓ High-capacity 5000mAh battery
- ✓ Easy magnetic, tool-free install
- ✓ UPS with safe shutdown
- ✕ Auto power-on conflicts with I2C
- ✕ Slightly bulky for tight spaces
| Battery Capacity | 5000mAh rechargeable battery |
| Output Voltage and Current | 5V 3A continuous output |
| Charging Ports | USB-C and Micro USB dual charging ports |
| Uninterruptible Power Supply (UPS) Functionality | Supports safe shutdown during power loss and charge-while-discharging |
| Compatibility and Connectivity | GPIO-compatible with magnetic attachment, uses bottom pogo-pin contact, supports wireless and solar charging expansion |
| Auto Boot and Control | Supports auto boot when power is restored; includes a programmable GPIO button |
You’re deep into a Raspberry Pi project, maybe setting up a retro gaming station or a home automation hub, when suddenly the power flickers. That’s when you realize how crucial a reliable backup power source is.
Holding the PiSugar S Plus in your hand, you notice its sleek, compact design with a sturdy magnetic attachment. It’s easy to place on your Pi 3B+ without blocking GPIO pins, thanks to its clever pogo-pin contact system.
The 5000mAh battery feels solid and well-built, giving you confidence in its durability. Connecting it is a breeze—no tools needed—just snap it onto your Pi and you’re good to go.
The dual charging ports, USB-C and Micro USB, make topping it off simple, even with different chargers or solar panels for off-grid use. Once attached, you won’t worry about crashes or overheating; I ran a Pi-hole and media server overnight with zero issues.
What really stands out is its UPS feature. The moment power drops, it detects immediately and safely shuts down your Pi, protecting your SD card and data.
Plus, the auto-boot function kicks in when power returns, so your system is always ready without manual intervention. The programmable GPIO button is handy for custom controls or resets.
Overall, the PiSugar S Plus blends high capacity with versatility. It’s perfect whether you’re running a headless server, IoT device, or portable project.
The only hiccup is the need to disable the auto power-on if you’re using I2C peripherals, but that’s a minor tweak. For peace of mind and steady performance, this battery makes your Pi truly autonomous and reliable.
Treedix 5V Uninterruptible Power Supply for Raspberry
- ✓ Reliable 5V/3A output
- ✓ No GPIO occupation
- ✓ Multi-port charging
- ✕ Slightly bulky size
- ✕ Could be pricier than basic options
| Output Voltage | 5V |
| Output Current | 3A (standard), up to 5A (peak under well-ventilated conditions) |
| Power Ports | Dual USB high-current ports, Type-C, Micro USB, USB-A |
| Battery Protection Features | Overcharge, overcurrent, overheating, undervoltage, short circuit protection |
| Compatibility | Raspberry Pi Zero, 2B, 3B, 3B+, 4B |
| Additional Features | Pogo pin contact for power supply, onboard power indicator |
Right out of the box, what caught my eye was how cleanly the Treedix 5V UPS hooks up without hogging your GPIO pins. The pogo pin contact feels secure and makes swapping between power sources a breeze without fiddling with tiny connectors.
The dedicated power module provides a steady 5V/3A, which is a lifesaver when your project demands consistent power. I tested it with my Raspberry Pi 3B+ running multiple peripherals, and it maintained a smooth operation even during heavy loads.
The onboard power indicator is surprisingly helpful—you always know exactly when your battery needs a recharge. Plus, the multi-port charging options mean you can keep your phone or other devices powered up without disconnecting your Pi.
What impressed me most was the built-in six protections. Overcurrent, overheating, undervoltage—you name it.
It gave me peace of mind, especially during long debugging sessions or when running intensive tasks.
The compatibility list is extensive, and I tested it with a Pi Zero and Pi 4, both worked flawlessly. The flexible design makes it perfect for embedded projects, whether you’re prototyping or just learning.
Honestly, it’s a compact, reliable power backup that feels sturdy and well-made. The only downside?
The size might be slightly bulky if you’re working with a tight enclosure. Still, the extra security features outweigh this small inconvenience.
Waveshare UPS HAT (E) for Raspberry Pi 5/4B/3B+ 5V 6A
- ✓ Robust power output
- ✓ Real-time battery monitoring
- ✓ Easy to install and configure
- ✕ Batteries not included
- ✕ Slightly complex for beginners
| Battery Capacity | Larger capacity with 4× 21700 Li-ion batteries (not included) |
| Maximum Power Output | 5V at 6A |
| Charging Protocols Supported | PD3.0, up to 40W |
| Power Input/Output | Type-C port with bi-directional fast charging |
| Battery Monitoring | Onboard fuel gauge IC for voltage, current, power, and remaining capacity |
| Connectivity | I2C bus for real-time monitoring of operating status |
As soon as I picked up the Waveshare UPS HAT and felt its sturdy pogo pin connector, I knew it was built for a solid connection. The weight of the onboard battery fuel gauge and the sleek Type-C port immediately caught my eye.
When I plugged it into my Raspberry Pi 4B, the system recognized it instantly—no fuss, no fussing with wires.
The onboard display showing battery levels is surprisingly clear, making it easy to keep track of power status at a glance. I tested the fast charging feature with a PD3.0 charger, and it powered up quickly, confirming the 40W support.
Connecting multiple batteries (21700 Li-ion cells, mind you, not included) felt seamless, and I appreciated the real-time monitoring via I2C, which kept me updated on voltage, current, and remaining capacity.
Power delivery felt stable even under load, thanks to the high-power buck chip. I ran a few intensive tasks—like streaming and some light programming—and the Pi stayed energized without dips or resets.
The 5V 6A output handled my peripherals effortlessly, providing peace of mind during longer projects. Overall, the setup is user-friendly, with comprehensive Wiki resources that made troubleshooting straightforward.
Compared to other UPS solutions, this HAT offers excellent capacity and real-time data, making it ideal for those who want reliable backup power without sacrificing performance. It’s a bit on the pricier side, but the features justify the investment if uptime matters to you.
What Is a Raspberry Pi 3B+ and Why Do You Need a Battery for It?
The Raspberry Pi 3B+ is a small, affordable, and versatile single-board computer developed by the Raspberry Pi Foundation, designed for various applications such as education, programming, and electronics projects. It features a 1.4 GHz quad-core processor, 1 GB of RAM, built-in Wi-Fi and Bluetooth connectivity, and multiple USB ports, making it suitable for tasks ranging from simple programming exercises to complex IoT projects.
According to the Raspberry Pi Foundation, the Raspberry Pi 3B+ represents an enhancement over its predecessors, offering improved processing speed and connectivity options, which make it an ideal choice for hobbyists and educators alike.
Key aspects of the Raspberry Pi 3B+ include its GPIO (General Purpose Input/Output) pins that allow users to connect various sensors and components, its compatibility with a wide range of operating systems like Raspbian, and its ability to support multiple programming languages. The device’s compact size and energy efficiency also make it a popular choice for portable projects and embedded systems.
This impacts a wide array of fields, from robotics and home automation to educational tools for teaching programming and electronics. The Raspberry Pi 3B+ can be employed in projects such as creating a personal web server, building a retro gaming console, or developing a smart home system. Its versatility allows users to prototype and experiment with their ideas without the need for extensive resources.
When working with a Raspberry Pi 3B+, having a reliable power source is crucial, particularly for portable applications. This is where a battery comes into play. A suitable battery not only ensures that the Pi has a consistent power supply but also enhances its portability for outdoor projects or mobile applications. Various battery options, such as LiPo or Lithium-ion batteries, can provide adequate voltage and current to keep the Raspberry Pi operational.
Best practices for selecting the best battery for Pi 3B+ include choosing one that can deliver at least 5V and 2.5A to meet the board’s power requirements. Additionally, implementing a power management system, such as a PowerBoost or UPS HAT, can help regulate power and provide safe shutdown capabilities to prevent data loss. Statistics show that using a dedicated battery pack can extend the project’s operational time significantly, allowing users to run their applications for hours without being tethered to a power outlet.
What Key Features Should You Look for in a Battery for the Pi 3B+?
When selecting the best battery for the Raspberry Pi 3B+, there are several key features to consider:
- Capacity (mAh): The capacity of a battery, measured in milliamp hours (mAh), indicates how much charge it can hold. A higher capacity means longer runtimes, which is particularly important for projects where the Pi will be used for extended periods without access to a power outlet.
- Voltage Compatibility: The Raspberry Pi 3B+ requires a stable input voltage of 5V. It is crucial to choose a battery or power bank that can provide this voltage consistently to avoid damaging the board or causing performance issues.
- Output Ports: Many batteries come with different output options, including USB ports. Ensure that the battery has a USB output port that can provide enough current (at least 2.5A) to support the Raspberry Pi 3B+ during operation, especially when peripherals are connected.
- Portability: If you plan to use your Raspberry Pi 3B+ in mobile or outdoor settings, consider the size and weight of the battery. A compact and lightweight battery will be easier to transport and manage during use.
- Rechargeability: Look for batteries that are rechargeable, as they are more cost-effective and environmentally friendly. Lithium-ion or lithium-polymer batteries are popular choices due to their ability to hold a charge well and their longevity over many charging cycles.
- Protection Features: Ensure that the battery has built-in protection features such as overcharge, over-discharge, and short-circuit protection. These features help ensure the safety and longevity of both the battery and your Raspberry Pi.
- LED Indicators: Some batteries come with LED indicators to show the remaining charge level. This feature is beneficial for monitoring battery status, allowing you to plan for recharging before running out of power.
What Types of Batteries Are Compatible with the Pi 3B+?
The types of batteries compatible with the Raspberry Pi 3B+ include:
- LiPo Battery: Lithium Polymer (LiPo) batteries are lightweight and have a high energy density, making them a popular choice for powering Raspberry Pi boards. They typically come in various sizes and capacities, allowing users to select a battery that best fits their project’s power requirements.
- Li-ion Battery: Lithium-ion batteries are another excellent choice for the Pi 3B+ due to their long life and ability to hold a significant charge. These batteries are often used in portable devices, and when paired with a suitable battery management system, they can provide a reliable power source for extended periods.
- AA Battery Pack: A battery pack that uses standard AA batteries can be a more accessible option, especially for those who need a quick power solution. This setup can provide adequate power through a series connection of 6 to 8 AA batteries, depending on the voltage requirements.
- USB Power Bank: Utilizing a USB power bank is a convenient and versatile option for powering the Raspberry Pi 3B+. These power banks can be easily charged and are portable, making them ideal for projects that require mobility or outdoor use.
- Rechargeable NiMH Batteries: Nickel Metal Hydride (NiMH) batteries offer a sustainable option as they are rechargeable and less harmful to the environment. While they provide slightly lower voltage than their lithium counterparts, they can still effectively power the Pi 3B+ when configured correctly.
Which Lithium Polymer Batteries Are Recommended for the Pi 3B+?
When looking for the best battery for the Raspberry Pi 3B+, consider the following options:
- Adafruit Lithium Polymer Battery Pack (2000mAh): This battery is compact, lightweight, and provides a good balance between size and capacity.
- Turnigy Nano-Tech 1300mAh 3S 45C Lipo Pack: Known for its high discharge rates, this battery is suitable for projects that require more power.
- TalentCell Rechargeable 12V 6000mAh Li-ion Battery: While not a polymer battery, this Li-ion option offers substantial capacity and longevity for extended use.
- Polymer Lithium Battery (3000mAh): This higher capacity battery is ideal for projects that demand longer run times without frequent recharging.
The Adafruit Lithium Polymer Battery Pack (2000mAh) is particularly popular due to its reliability and sufficient capacity for moderate use of the Raspberry Pi 3B+. It features built-in protection circuits to prevent overcharging and discharging, ensuring safety and longevity.
The Turnigy Nano-Tech 1300mAh 3S 45C Lipo Pack is favored among enthusiasts who require a battery with a high discharge rate. This battery is ideal for projects that need bursts of power, such as those involving motors or other high-drain components.
The TalentCell Rechargeable 12V 6000mAh Li-ion Battery is a versatile option that can power multiple Raspberry Pi units or other peripherals. Its larger capacity allows for extended usage, making it suitable for long-term projects or installations.
For those needing more juice, the Polymer Lithium Battery (3000mAh) provides a significant boost in capacity, allowing for hours of operation without the need to recharge. This is particularly useful for applications where power availability is limited or where portability is a key consideration.
Are There Specific Power Banks that Work Best with the Pi 3B+?
When selecting power banks for the Raspberry Pi 3B+, certain features and specifications can enhance functionality and ensure compatibility.
- RAVPower 26800mAh Portable Charger: This power bank offers a high capacity, allowing for extended use of the Raspberry Pi 3B+ without interruption. It features multiple USB outputs, enabling users to power additional devices while maintaining stable voltage levels for the Pi, which is essential for smooth operation.
- Anker PowerCore 20100mAh: Known for its reliability, this power bank supports fast charging and has a compact design that makes it portable. It delivers consistent power output, which is crucial for the Raspberry Pi to avoid sudden shutdowns that can occur due to insufficient power supply.
- Omni 20+ Portable Power Bank: This versatile option includes AC, USB-C, and USB-A ports, making it highly adaptable for various devices. It also features a built-in inverter which allows users to power the Raspberry Pi 3B+ directly from an AC outlet if needed, providing flexibility in different environments.
- Zendure A2 Portable Charger: With a robust build and a capacity of 6700mAh, this power bank is designed for durability and efficiency. It offers a low-power mode that is particularly useful for the Raspberry Pi, ensuring that it receives just the right amount of power without risking damage.
- Jackery Bolt 6000mAh: This compact power bank includes built-in cables for both Lightning and micro USB devices, which simplifies the charging process. Its lightweight design makes it an excellent choice for mobile projects involving the Raspberry Pi 3B+, allowing for easy transportation and use on the go.
How Much Capacity Is Ideal for a Pi 3B+ Battery?
The ideal battery capacity for a Raspberry Pi 3B+ typically depends on usage scenarios and desired operating time.
- 2000mAh Battery: A 2000mAh battery can provide around 4-5 hours of runtime, which is suitable for light projects or short-term applications. This capacity is often a good balance between size, weight, and performance, making it a popular choice for mobile projects.
- 4000mAh Battery: With a capacity of 4000mAh, this battery can extend the runtime to approximately 8-10 hours, making it ideal for more demanding applications. It is often used in portable setups where extended use away from power sources is required, ensuring that the Raspberry Pi remains operational for longer periods.
- 6000mAh Battery: A 6000mAh battery can offer up to 12-15 hours of operation, suitable for projects that involve continuous use, such as IoT devices or media centers. This larger capacity is beneficial for users needing reliability over time without frequent battery changes or recharges.
- Power Bank: Using a power bank with a capacity ranging from 10000mAh to 20000mAh can provide significant flexibility and extended runtime, often allowing for days of usage depending on the load. Power banks also come with features such as pass-through charging, which can be advantageous for continuous projects requiring both power and charging capabilities.
- LiPo Batteries: Lithium Polymer (LiPo) batteries are a compact and lightweight option that can provide varying capacities, often starting around 1000mAh and going up to 5000mAh or more. These batteries are favored for projects where space is a constraint, and they offer high discharge rates, suitable for powering the Raspberry Pi 3B+ effectively.
How Can You Maximize the Battery Life of Your Pi 3B+ Projects?
Implementing sleep mode is another effective strategy. By programming the Raspberry Pi to enter a low-power state during idle periods, you can significantly decrease energy consumption, allowing the battery to last much longer between charges.
Reducing peripheral usage is also key to battery conservation. Many peripherals, such as displays and cameras, draw significant power; therefore, powering them down or disabling them when they are not actively being used can help preserve battery life.
Lastly, using efficient code can make a big difference. Optimizing algorithms and ensuring that your code runs as efficiently as possible can reduce the number of CPU cycles needed, leading to lower energy consumption and improved battery longevity.
What Are the Best Battery Options Available for the Pi 3B+?
The best battery options for the Raspberry Pi 3B+ include:
- PowerBank: A portable power bank is a popular choice due to its convenience and capacity, often ranging from 5,000mAh to 20,000mAh.
- LiPo Battery with Charger: Lithium Polymer (LiPo) batteries provide a lightweight and compact solution, typically paired with a charging board for easy recharging.
- UPS Hat: An Uninterruptible Power Supply (UPS) HAT is designed specifically for Raspberry Pi boards, offering a seamless integration and battery backup functionality.
- 6V Rechargeable Battery Pack: A 6V rechargeable battery pack can be used with a step-down voltage regulator to provide stable power to the Raspberry Pi.
Power banks are incredibly versatile and can be used not only with the Raspberry Pi but also with other devices, making them a great investment. They come with multiple output ports and can recharge quickly, ensuring your Pi stays powered during projects or portable setups.
LiPo batteries are favored for their high energy density and lightweight nature, making them ideal for mobile applications. Coupled with a dedicated charger, these batteries allow for straightforward management of power and are often used in robotics and remote-controlled devices.
A UPS HAT specifically designed for the Raspberry Pi ensures that power is maintained even during interruptions, providing a reliable power source for projects that require constant uptime. This solution is particularly beneficial for applications where data integrity is critical, as it prevents sudden power loss.
Using a 6V rechargeable battery pack along with a voltage regulator is a less common but effective option, especially for those who want a more DIY approach. This method requires some additional components but can be tailored for specific applications and provides a stable voltage output for the Raspberry Pi.
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