Black Rice 20000mAh power bank with cylindrical aluminium shell battery and 80% conversion rate, general-purpose portable charger with included charging cable, compact dimensions at 135 x 60 x 20 mm
Black Rice 20000mAh power bank with cylindrical aluminium shell battery and 80% conversion rate, general-purpose portable charger with included charging cable, compact dimensions at 135 x 60 x 20 mm
Black Rice 20000mAh Power Bank with 80% Conversion Rate and Compact Design
The Black Rice 20000mAh power bank offers substantial portable power capacity in a compact form, making it suitable for charging smartphones, tablets, and other general-purpose electronic devices while travelling or away from mains power. With dimensions of 135mm by 60mm by 20mm, this portable charger balances substantial battery capacity with portability that fits comfortably in bags, backpacks, or larger pockets. The power bank achieves an 80% conversion rate, meaning it efficiently transfers stored energy to your devices rather than losing significant power to heat or internal resistance during the charging process.
Features and Construction
This power bank combines practical capacity with established battery technology in a straightforward package designed for everyday charging needs.
Material and Build
The power bank utilises cylindrical aluminium-shell batteries of the 18650 type, a common and reliable format for lithium-ion energy storage. These batteries are housed within a plastic outer shell that provides protection and forms the main body of the device. This construction approach balances durability with weight considerations, resulting in a portable charger that can withstand regular handling while maintaining a manageable weight for transport.
Size and Practical Fit
With dimensions measuring 135mm in length, 60mm in width, and 20mm in depth, this power bank maintains a compact profile relative to its 20000mAh capacity. The rectangular form factor allows it to stack efficiently with other items in bags or storage compartments, while the 20mm thickness helps prevent bulkiness. This sizing makes it suitable for travel scenarios where space optimisation matters, whether carried in luggage, backpacks, or dedicated tech organisers.
Uses and Placement
The general-purpose compatibility of this power bank supports charging across a variety of electronic devices in different scenarios where portable power is needed.
Event or Professional Use
For event organisers, photographers, or professionals working on location, this 20000mAh capacity provides multiple full charges for most smartphones or substantial supplementary power for tablets and smaller laptops. The 80% conversion rate means you can reasonably estimate how much device charging you'll achieve from the bank's stated capacity. The included charging cable simplifies setup, requiring only a standard USB power source to replenish the bank itself before use.
Everyday Home Use
Around the home, this power bank serves as a convenient backup during power outages or for areas with limited power socket access. Its compact size allows for discreet storage in drawers, on shelves, or in emergency kits without occupying excessive space. The plastic shell provides adequate protection for occasional drops or bumps that might occur during casual home use, while the general-purpose compatibility ensures it works with most household electronics that charge via USB.
Benefits and Buying Value
This power bank focuses on delivering practical portable power through established technology and straightforward design elements.
Reuse and Low Maintenance
The power bank supports repeated charging cycles typical of lithium-ion technology, allowing for regular reuse over time with proper care. Basic maintenance involves keeping the device in dry conditions and avoiding exposure to extreme temperatures that could affect battery performance. The simple construction with few moving parts reduces points of potential failure, contributing to reliable operation through normal charging scenarios without complex upkeep requirements.
Why Choose This Product
This power bank offers a balance of substantial 20000mAh capacity with compact dimensions that enhance portability. The 80% conversion rate provides realistic expectations about how much device charging you'll achieve from the stored energy. The cylindrical aluminium-shell 18650 batteries represent established, reliable technology for energy storage, while the plastic housing provides practical protection without unnecessary weight. The complete package with charging cable ensures you have everything needed to begin using the power bank immediately.
