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Running out of battery during travel or office hours is frustrating. The RealPower PB-4000 4000 mAh Power Bank offers compact, reliable backup power for smartphones and small USB devices. It fits your pocket. It charges fast. It keeps you connected.
Available at PCB Store Bangladesh, this slim portable charger belongs to the Gadget category and sits under the Power Bank collection for everyday mobile users.
The RealPower PB-4000 Fashion is a lithium-polymer portable battery designed for convenient mobile charging. It delivers 4000 mAh capacity in a flat, lightweight body measuring 112 × 57 × 13 mm.
You get:
This power bank charges one device at a time. It suits daily commuting, short trips, and emergency power needs.
The flat design slips into small bags and even shirt pockets. No bulk. No heavy weight.
Portability matters. The RealPower PB-4000 focuses on compact dimensions and lightweight construction. Its leather-look finish adds a premium touch without increasing size.
Key physical highlights:
The minimalist body design makes it ideal for students, office professionals, and travelers.
If you explore more backup options, check the Power Bank collection at PCB Store for different capacities and charging speeds.
Charging speed is crucial. The RealPower PB-4000 delivers up to 2A output through its single USB Type-A port.
What does 2A output mean for you?
This makes it practical for Android phones, older iPhones with USB-A cables, and small USB-powered gadgets.
The power bank supports universal charger compatibility, meaning you can recharge it using standard USB chargers.
Battery safety cannot be ignored. The RealPower PB-4000 integrates protection mechanisms to guard against:
These features extend battery life and protect connected devices. The internal battery management system regulates charging cycles to maintain stable operation.
You also get an LED indicator that shows the current battery status. No guesswork. Just quick visual confirmation.
This 4000 mAh power bank suits users who need light backup power rather than heavy-duty charging.
Ideal scenarios:
It can charge one device at a time. This design choice keeps the body slim and portable.
For higher-capacity options, explore the Gadget section at PCB Store Bangladesh for models with multiple outputs and larger mAh ratings.
Using this device is simple.
Follow the manufacturer’s charging instructions for your phone. Use certified cables for stable charging performance.
These practices help maintain battery health and long-term usability.
RealPower focuses on practical mobile accessories with balanced design and performance. The PB-4000 model reflects that philosophy.
You get:
The combination of safety features and compact size makes it suitable for everyday users in Bangladesh.
If you browse the RealPower brand category at PCB Store, you will find other mobile charging accessories for different power needs.
Here is a quick performance snapshot:
This model focuses on simplicity and reliability rather than multi-device fast charging.
Authenticity matters. At PCB Store Bangladesh, you get genuine products sourced through verified channels.
Benefits of purchasing locally:
Stock availability can change. Compact power banks like this often sell quickly during travel seasons and exam periods.
If you need lightweight backup power, this model fits daily use without adding bulk.
Inside Dhaka: ৳80
Outside Dhaka: ৳130
Yes, it supports universal USB charging. Any smartphone that charges via USB Type-A cable can use this power bank. It delivers up to 2A output, suitable for most standard smartphones and small USB devices.
With 4000 mAh capacity, it can provide roughly one full charge for many standard smartphones. Actual charging cycles depend on your phone’s battery size and energy conversion efficiency.
It supports supplementary charging for tablets. However, due to 4000 mAh capacity and single 2A output, it is better suited for partial top-ups rather than full tablet charging cycles.
It provides up to 2A output. This is standard charging speed, not advanced fast-charging protocols. It is stable and safe for regular smartphone charging.
No. It has one USB Type-A output and supports charging one device at a time. This design helps maintain compact size and stable power delivery.
Yes. The power bank includes overcharge and over-discharge protection. These built-in safety features protect both the internal battery and your connected device.
Recharge time depends on the charger used. Using a standard USB charger, it typically takes a few hours to fully recharge the 4000 mAh battery.
The price may vary depending on stock and promotions. For the latest price in Bangladesh, visit PCB Store’s website or contact their sales team for updated availability.
The PB-4000 is ideal for light daily backup. Higher capacity models offer multiple charges and more outputs but are larger and heavier. Choose based on your charging frequency and portability needs.