MIRO B1 Facts: 138 Specifications & 30 Highlights
Get the facts before you unbox. The MIRO B1 power bank features 138 key specs & features, with general information, battery & capacity, charging input performance & power output performance topping the list.
Highlights 30
No extras. Just what matters.Why is MIRO B1 better than other power banks ?
General Information
- Product Type: Power Bank
- Manufactured in China
- Well Suited for Smartphone Charging,Travel Backup,Emergency Power
- Released in 2024
- Finish Type: Matte
- Storage Temperature Range: -4-113°F
Battery & Capacity
- 1.05 Volt higher battery voltage 5.0 Volt vs 4.0 Volt
- Cycle Life Rating: 300–500 Cycles
- Battery Chemistry: Lithium-Polymer
- 17,294.9 mAh higher battery capacity 27,600.0 mAh vs 10,305.1 mAh
- 87.28 Watt higher energy rating 140.0 Watt vs 52.7 Watt
- Battery Cell Type: Pouch
- 4.95 % lower self-discharge rate 5.0 % vs 9.9 %
- 1.43 Watt lower standby power loss 0.1 Watt vs 1.5 Watt
Charging Input Performance
- Input Voltage Range: 5–9V
- Input Port Type: USB-C,USB-A
- 0.63 Amp higher input current rating 3.0 Amp vs 2.4 Amp
- 2.2 hour shorter charging time 1.5 hour vs 3.7 hour
Power Output Performance
- 11.81 Watt higher output current rating 22.5 Watt vs 10.7 Watt
- 2.77 Watt higher maximum output power 22.5 Watt vs 19.7 Watt
- 2.42 Watt higher total output power 22.5 Watt vs 20.1 Watt
Charging Protocols & Compatibility
Scroll down for more factsPhysical Dimensions & Weight
- 1.29 inch narrower width 2.5 inch vs 3.8 inch
- 1.01 inch slimmer depth 1.0 inch vs 2.0 inch
- 0.15 inch shorter height 3.0 inch vs 3.2 inch
Environmental & Efficiency
- 0.14 Watt lower idle power consumption 0.1 Watt vs 0.2 Watt
Included Accessories & Packaging
- 0.39 inch smaller package width 3.5 inch vs 3.9 inch
- 0.29 inch smaller package depth 1.5 inch vs 1.8 inch
- 0.09 inch smaller package height 4.5 inch vs 4.6 inch
Quick Take
The essentials that matter—nothing extraA fast snapshot of the MIRO B1, covering its standout specification and what you can expect right out of the box.
MIRO B1
The MIRO B1 is a remarkably compact 4400mAh power bank designed to fit effortlessly into your palm or smallest pocket. Despite its miniature size, it delivers impressive 22.5W fast charging through its built-in USB-C connector, making it the perfect emergency backup for your smartphone. This lightweight charger eliminates the need for messy cables, allowing you to stay powered up while you talk, text, or travel.
Specifications & Facts 138
Specs measured. Drama avoided.Specs, performance, and value — we unpacked the MIRO B1 power bank across every angle. See how it stacks up against other power banks.
General Information 10
MIRO B1 Operating Temperature Minimum
What is the minimum operating temperature?
MIRO B1
Minimum operating temperature is 32°F (0°C). Operating below this temperature may reduce battery performance or charging efficiency.
Defines the lowest ambient temperature the power bank can operate safely.
MIRO B1 Operating Temperature Maximum
What is the maximum operating temperature?
MIRO B1
Maximum recommended operating temperature is 95°F (35°C). Keeping the device below this limit helps maintain performance and safety.
Defines the highest ambient temperature the power bank can operate safely.
MIRO B1 Product Type
What is the product type?
59 MIRO B1 0 Votes Power Bank
50 Power Banks in this range Power Bank
Identifies the functional category of the portable charging device.
MIRO B1 Country of Origin
Where is this product made?
69 MIRO B1 0 Votes China
55 Power Banks in this range China
States the country where the product is manufactured or assembled.
MIRO B1 Color Options
What color options are available?
70 MIRO B1 0 Votes Black
58 Power Banks in this range Black
Lists the available exterior color choices.
MIRO B1 Intended Use Case
What is the intended use case?
64 MIRO B1 0 Votes Smartphone Charging, Travel Backup, Emergency Power
50 Power Banks in this range Smartphone Charging, Tablet Charging, Travel Backup, Emergency Power
Describes the primary usage scenarios the power bank is designed for.
Battery & Capacity 14
MIRO B1 Battery Voltage
What is the battery voltage?
MIRO B1
Nominal output/bus voltage is 5 V, matching standard USB device charging expectations.
Indicates the nominal voltage of the battery pack.
MIRO B1 Overcharge Protection
Is overcharge protection supported?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Includes circuitry to prevent charging beyond safe limits, protecting the battery from overcharge damage.
Prevents damage from charging beyond safe limits.
MIRO B1 Rated Capacity
What is the rated capacity?
MIRO B1
Rated capacity is 4400 mAh, which typically provides roughly one full charge for many modern smartphones depending on the phone's battery size.
Indicates the usable output capacity after conversion losses.
MIRO B1 Cycle Life Rating
What is the cycle life rating?
49 MIRO B1 0 Votes 300–500 Cycles
43 Power Banks in this range 300–500 Cycles
MIRO B1
Battery is rated for 300–500 Cycles, indicating expected usable life under normal charge/discharge conditions.
Indicates the estimated number of full charge cycles the battery can complete before noticeable capacity degradation.
MIRO B1 Overdischarge Protection
Is overdischarge protection supported?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Prevents the battery from discharging below safe thresholds, which helps extend overall battery lifetime.
Prevents battery depletion below safe voltage levels.
MIRO B1 Battery Chemistry
What battery chemistry is used?
49 MIRO B1 0 Votes Lithium-Polymer
39 Power Banks in this range Lithium-Polymer
Defines the chemical composition of the battery cells.
Charging Input Performance 10
MIRO B1 Input Voltage Range
What input voltage range is supported?
53 MIRO B1 0 Votes 5–9V
38 Power Banks in this range 5V
MIRO B1
Accepts an input range of 5–9V, covering common USB charging voltages for portable adapters.
Specifies the supported voltage range for charging input.
MIRO B1 Input Port Type
What input port types are supported?
74 MIRO B1 0 Votes USB-C, USB-A
66 Power Banks in this range USB-C
Identifies the physical port types used to recharge the power bank.
MIRO B1 Input Current Rating
What is the input current rating?
Defines the maximum current the power bank can draw during charging.
MIRO B1 Input Port Count
How many input ports does it have?
9 MIRO B1 0 Votes 1
10 Power Banks in this range 1
Indicates how many input ports are available for charging.
MIRO B1 Maximum Input Power
What is the maximum input power?
Shows the maximum power the power bank can accept while charging.
MIRO B1 Fast Input Charging
Does it support fast input charging?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Indicates whether fast-charging input standards are supported.
Power Output Performance 14
MIRO B1 Simultaneous Device Charging
Can it charge multiple devices simultaneously?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Can charge multiple devices simultaneously, automatically distributing available power across active ports.
Indicates whether multiple devices can be charged at once.
MIRO B1 Output Voltage Range
What output voltage range is supported?
0 MIRO B1 0 Votes 5–12V
0 Power Banks in this range 5V
MIRO B1
Output voltage range of 5–12V supports compatibility with a variety of device charging profiles, including higher-voltage fast-charge modes.
Defines the voltage levels supported for device charging.
MIRO B1 Output Current Rating
What is the output current rating?
MIRO B1
Maximum output rating is 22.5 Watt, which indicates the peak power the unit can deliver to connected devices.
Represents the power delivery capability under load conditions.
MIRO B1 Output Stability
How stable is the output power?
0 MIRO B1 0 Votes Stable
0 Power Banks in this range Stable
MIRO B1
Output behavior is Stable, meaning voltage and current delivery remain consistent under typical load conditions.
Describes how consistently the power bank maintains output power under varying load conditions.
MIRO B1 Output Port Type
What output port types are available?
0 MIRO B1 0 Votes USB-C, USB-A
60 Power Banks in this range USB-A, USB-C
Identifies the physical ports used to deliver power to devices.
MIRO B1 Output Port Count
How many output ports does it have?
0 MIRO B1 0 Votes 4
0 Power Banks in this range 2
Indicates how many devices can be physically connected at once.
Charging Protocols & Compatibility 12
MIRO B1 Programmable Power Supply
Does it support PPS charging?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Supports programmable output behavior, allowing firmware or negotiation to adjust voltage/current for specific devices.
Indicates support for Programmable Power Supply charging.
MIRO B1 Wearable Device
Does it support wearable devices?
No
0
Votes
MIRO B1
Yes Power Banks in this range
MIRO B1
Not designed to be worn on the body; it lacks the form factor and attachment features typical of wearable chargers.
Indicates compatibility with smartwatches and wearables.
MIRO B1 Protocol Auto-Detection
Does it auto-detect charging protocols?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Automatically detects the connected device's charging protocol and adjusts output to ensure optimal charging behavior.
Automatically selects the best protocol for each device.
MIRO B1 Samsung Charging Compatibility
Is it compatible with Samsung devices?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Confirms optimized charging for Samsung devices.
MIRO B1 Laptop Charging
Can it charge laptops?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Indicates ability to charge laptops via USB-C output.
MIRO B1 Backward Compatibility
Is it backward compatible?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Ensures support for older devices and standards.
Physical Dimensions & Weight 6
MIRO B1 Weight
How much does it weigh?
MIRO B1
Unit weight is 1.455 lbs (0.66 kg). This weight is light enough for comfortable portability while still indicating substantial battery capacity.
Indicates how heavy the power bank is for portability.
MIRO B1 Pocket-Friendly Design
Is it pocket-friendly?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Designed to be carried comfortably in a pocket or small bag without causing bulk or discomfort.
Indicates whether the size is suitable for pocket carry.
MIRO B1 Travel-Friendly Size
Is it travel-friendly?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Designed with dimensions and weight that make it convenient for travel and everyday carry.
Indicates suitability for travel and carry-on use.
MIRO B1 Width
What is the width?
Measures the horizontal size of the power bank.
MIRO B1 Depth
What is the depth?
Measures the front-to-back thickness of the power bank.
MIRO B1 Height
What is the height?
Measures the vertical dimension of the power bank.
Build Materials & Durability 9
MIRO B1 Heat Resistance
Is the power bank heat resistant?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Rated for resistance to elevated temperatures encountered during normal operation, helping protect the battery and electronics.
Indicates whether the power bank is designed to withstand elevated internal and external temperatures without performance degradation.
MIRO B1 Outer Shell Material
What is the outer shell material?
0 MIRO B1 0 Votes Plastic
0 Power Banks in this range Plastic
Specifies the primary material used for the exterior housing.
MIRO B1 Internal Frame Material
What is the internal frame material?
0 MIRO B1 0 Votes Plastic
0 Power Banks in this range Plastic
Describes the internal structural material supporting the battery cells.
MIRO B1 Impact Resistance Rating
What is the impact resistance rating?
0 MIRO B1 0 Votes Low Impact Resistance
0 Power Banks in this range Moderate Impact Resistance
Indicates the ability of the power bank to withstand shocks and physical impacts.
MIRO B1 Fire Retardant Materials
Does it use fire-retardant materials?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Indicates use of flame-resistant materials in construction.
MIRO B1 Scratch Resistance
Is the surface scratch resistant?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Indicates whether the exterior surface is resistant to scratches from daily handling and transport.
Display, Indicators & Controls 10
MIRO B1 Display Type
What type of display does it have?
0 MIRO B1 0 Votes LED Indicator
0 Power Banks in this range LED Indicator
MIRO B1
Uses LED Indicator lights to communicate charge level and operational status at a glance.
Specifies the type of display used to show power information.
MIRO B1 Auto Wake Feature
Does it auto wake when a device is connected?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Wakes automatically when a device is connected so charging can begin without manual power-on steps.
Automatically activates when a device is connected.
MIRO B1 Battery Level Indicator
Does it show battery level?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Indicates whether the power bank shows remaining battery level.
MIRO B1 Indicator Accuracy
How accurate is the battery indicator?
Measures how accurately the indicator reflects actual remaining power.
MIRO B1 Remaining Time Display
Does it display remaining time?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Shows estimated remaining usage or charging time.
MIRO B1 Button Type
What type of button does it use?
0 MIRO B1 0 Votes Physical Button
0 Power Banks in this range Physical Button
Describes the type of button used for control.
Safety & Protection Features 14
MIRO B1 Short Circuit Protection
Does it have short circuit protection?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Provides short-circuit protection to interrupt current flow if an electrical short occurs, reducing risk of damage.
Prevents damage when a short circuit is detected.
MIRO B1 Overcurrent Protection
Is overcurrent protection supported?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Protects devices from excessive current flow.
MIRO B1 Thermal Protection
Does it have thermal protection?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Shuts down or limits power when overheating is detected.
MIRO B1 Overvoltage Protection
Does it include overvoltage protection?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Prevents voltage levels from exceeding safe limits.
MIRO B1 Temperature Monitoring
Is temperature monitored internally?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Continuously monitors internal temperature.
MIRO B1 Foreign Object Detection
Does it detect foreign objects?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Detects abnormal objects or unsafe connections.
Thermal Management & Cooling 12
MIRO B1 Heat Dissipation Method
How does it dissipate heat?
0 MIRO B1 0 Votes Passive Cooling
0 Power Banks in this range Passive Cooling
MIRO B1
Dissipates heat using Passive Cooling (chassis and natural convection) rather than active fans, keeping operation quiet.
Describes how heat is dispersed away from internal components.
MIRO B1 Charging Temperature Regulation
Is charging temperature regulated?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Manages charging temperature to keep the battery and connected devices within safe thermal limits.
Actively manages temperature during charging cycles.
MIRO B1 Discharge Temperature Regulation
Is discharge temperature regulated?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
MIRO B1
Regulates temperature during discharge to maintain safe operation and protect battery longevity.
Controls temperature while powering external devices.
MIRO B1 Thermal Management System
Does it have a thermal management system?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Indicates whether the power bank includes an integrated thermal management system.
MIRO B1 Internal Heat Sink
Is there an internal heat sink?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Indicates the presence of an internal heat sink to absorb and spread heat.
MIRO B1 Thermal Sensor Count
How many thermal sensors are used?
0 MIRO B1 0 Votes 1
0 Power Banks in this range 1
Specifies how many thermal sensors are used for temperature monitoring.
Connectivity & Smart Features 8
MIRO B1 Bluetooth Connectivity
Does it support Bluetooth connectivity?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Indicates whether the power bank can connect wirelessly to other devices.
MIRO B1 App Support
Is there app support?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Confirms whether a companion mobile app is available.
MIRO B1 Firmware Upgradable
Can the firmware be updated?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Indicates whether firmware can be updated to improve functionality.
MIRO B1 Smart Power Monitoring
Does it offer smart power monitoring?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Provides real-time monitoring of power flow and usage.
MIRO B1 Device Usage Analytics
Does it provide usage analytics?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Tracks connected device charging behavior and patterns.
MIRO B1 Charging History Tracking
Is charging history tracked?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Records past charging sessions for review.
Environmental & Efficiency 6
MIRO B1 Sustainable Materials
Does it use sustainable materials?
No
0
Votes
MIRO B1
Yes Power Banks in this range
MIRO B1
The product does not specify the use of certified sustainable or recycled materials in its construction.
Indicates use of environmentally friendly or recycled materials.
MIRO B1 Energy Conversion Efficiency
What is the energy conversion efficiency?
Measures how efficiently stored energy is converted into usable output power.
MIRO B1 Idle Power Consumption
How much power is used while idle?
Indicates how much power is consumed when the power bank is not actively charging devices.
MIRO B1 Eco Mode
Does it support eco mode?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Enables reduced power usage to improve efficiency and battery longevity.
MIRO B1 Automatic Power Optimization
Does it optimize power automatically?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Automatically adjusts output to reduce energy waste.
MIRO B1 Recycling Program
Is a recycling program supported?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Indicates manufacturer support for recycling or take-back programs.
Included Accessories & Packaging 7
MIRO B1 Package Width
What is the package width?
MIRO B1
Package width is 3.5 inch (8.89 cm), contributing to the unit's overall compact footprint.
Measures the width of the retail packaging.
MIRO B1 Package Depth
What is the package depth?
MIRO B1
Package depth is 1.5 inch (3.81 cm). This compact depth helps when packing the device into small bags or pockets.
Measures the depth of the retail packaging.
MIRO B1 Package Height
What is the package height?
MIRO B1
Package height measures 4.5 inch (11.43 cm). Consider this when planning storage or packing space.
Measures the height of the retail packaging.
MIRO B1 Charging Cable
Is a charging cable included?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Indicates whether a charging cable is included in the box.
MIRO B1 Carrying Case
Is a carrying case included?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Indicates whether a protective carrying case is included.
MIRO B1 Wall Adapter
Is a wall adapter included?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Indicates whether a wall charging adapter is provided.
Warranty & Support 6
MIRO B1 Support Channels
What support channels are available?
0 MIRO B1 0 Votes Email
0 Power Banks in this range Email, Phone
MIRO B1
Customer support is available via Email, which is useful for non-urgent inquiries and record-keeping.
Lists available customer support contact methods.
MIRO B1 Warranty Length
How long is the warranty?
0 MIRO B1 0 Votes 12 Months
0 Power Banks in this range 12 Months
Indicates the duration of the manufacturer warranty.
MIRO B1 Battery Warranty Coverage
Is the battery covered by warranty?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Indicates whether the battery itself is covered under warranty.
MIRO B1 Technical Support Availability
Is technical support available?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Confirms access to technical support services.
MIRO B1 Replacement Policy
Is there a replacement policy?
Yes 0 Votes MIRO B1
Yes Power Banks in this range
Indicates eligibility for replacement in case of defects.
MIRO B1 Repair Service Availability
Are repair services available?
No
0
Votes
MIRO B1
Yes Power Banks in this range
Confirms whether repair services are offered.
Surveys
Because hot takes deserve votes.MIRO B1 Charging Speed Performance
How fast does this power bank recharge devices in everyday use?
MIRO B1 Battery Capacity Satisfaction
How satisfied are you with the battery capacity of this power bank for daily needs?
MIRO B1 Output Power and Device Support
How well does this power bank handle charging different devices at once?
MIRO B1 Port Selection and Flexibility
How flexible is this power bank when it comes to charging ports?
MIRO B1 Size and Portability
How easy is this power bank to carry around daily?
MIRO B1 Build Quality and Durability
How durable does this power bank feel during regular use?
MIRO B1 Charging Stability
How stable is the charging output from this power bank during use?
MIRO B1 Heat and Safety Performance
How well does this power bank control heat during charging and heavy use?
MIRO B1 Battery Efficiency
How efficiently does this power bank convert stored energy into usable charging power?
MIRO B1 Travel Friendliness
How convenient is this power bank for travel and daily commuting?
Reviews 0
The good, the bad, and the brutally honest.Average Rating
Discussions 0
Thoughts, takes, and hot debates.Awards 0
Only the best made it here.Collections 0
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