SmarToools RB20 AAA 1.5V 750 mWh Rechargeable Battery (2 Pcs Set)

Smartoools RB20 – Best USB Rechargeable AAA Battery in Bangladesh

Are you tired of running to the local ‘Mudir Dokan’ every time your TV remote or wall clock stops working? The Smartoools RB20 AAA 750mWh Rechargeable Battery set is the perfect solution for Bangladeshi households. This 2-piece set replaces hundreds of single-use alkaline batteries, saving you money and reducing waste. Unlike traditional rechargeable batteries that lose power as they drain, these provide a steady 1.5V output until they are completely empty.

In a busy city like Dhaka, we use many battery-powered gadgets daily, from AC remotes to wireless mice and kids’ toys. During load shedding, you might rely on small portable fans or LED lights that take AAA batteries. These Smartoools cells are designed to handle heavy daily use while being incredibly easy to recharge using a standard Micro-USB cable.

Key Features of Smartoools RB20

• Constant 1.5V Output: Provides stable power throughout the discharge cycle, unlike NiMH batteries that drop to 1.2V.
• Integrated Micro-USB Port: No need for a bulky external battery charger; just plug in a cable.
• High Capacity: 750mWh energy rating ensures your gadgets run longer between charges.
• Eco-Friendly Choice: Rated for over 1000 charge cycles, replacing more than 1000 disposable cells.
• LED Charging Indicator: Built-in light shows you exactly when the battery is full and ready to use.

Why Constant 1.5V Output Matters

Most rechargeable batteries in Bangladesh are NiMH (Nickel Metal Hydride) types, which only provide 1.2V. Many devices like Xbox controllers, blood pressure monitors, and certain toys don’t work well or show a ‘low battery’ signal even when those batteries are full. The Smartoools RB20 uses Lithium technology to maintain a true 1.5V output. This means your devices perform at their peak until the very last drop of energy is used.

Design and Build Quality

These batteries are built with safety in mind. Each cell features an intelligent chipset that prevents overcharging, over-discharging, and short circuits. The Micro-USB port is placed conveniently on the side of the battery. The exterior has a clean, modern look that fits perfectly into any standard AAA battery compartment without being too tight or too loose. It is a solid, well-made product that feels much more reliable than cheap local alternatives.

Battery Performance and Efficiency

The 750mWh capacity is optimized for low-to-medium drain devices. In our testing, they last significantly longer in wireless keyboards and remotes compared to standard zinc-carbon batteries. Charging is fast, usually taking around 1.5 to 2 hours to reach full capacity. Since you can charge them from a power bank, laptop, or phone charger, they are perfect for people who travel frequently within Bangladesh or commute long distances.

Who Should Buy the Smartoools RB20?

• Office Workers: Keep your wireless mouse and keyboard running without keeping a drawer full of spares.
• Parents: Save a fortune on battery costs for toys that your kids use every single day.
• Smart Home Users: Perfect for AC remotes, smart door locks, and sensors that need stable voltage.

Why Buy from Gadgeterians?

• 100% genuine product with quality check before shipping
• Cash on Delivery available across all 64 districts of Bangladesh
• Fast delivery – ৳60 inside Dhaka, ৳120 outside Dhaka
• 7-Day Replacement Guarantee for manufacturing defects
• Trusted gadget store focused on reliable service

What’s in the Box?

• 2 x Smartoools RB20 AAA 1.5V 750mWh Batteries
• 1 x Dual-headed Micro-USB Charging Cable

Frequently Asked Questions

Q: Do I need a special charger for these batteries?

No, these batteries have a built-in Micro-USB port. You can use the included cable and plug it into any USB phone charger or power bank.

Q: Can I use these in my Blood Pressure (BP) monitor?

Yes, because they provide a constant 1.5V, they are much better for medical devices like BP monitors than standard 1.2V rechargeable batteries.

Q: How do I know when they are fully charged?

There is a small LED indicator on the battery. It usually glows red while charging and turns green or blue when finished.

Q: Are these better than alkaline batteries?

In the long run, yes. While one alkaline battery might last slightly longer in a very low-power clock, the ability to recharge these 1000 times makes them much cheaper and better for the environment.

Q: Can I use a traditional NiMH battery charger?

No, do not put these in a standard battery charger. Only charge them via the Micro-USB port provided on the side.

Q: How long does the charge last in a TV remote?

In a standard TV remote, these can easily last 3 to 6 months or more depending on your usage habits.

Q: Is there any warranty for these batteries?

Gadgeterians provides a 7-day replacement guarantee for any manufacturing defects to ensure you get a working product.

What is the price of Smartoools RB20 in Gadgeterians?

The Smartoools RB20 AAA 2-piece set is available at Gadgeterians for only ৳600.00. With high-speed delivery across Bangladesh and a cash-on-delivery option, this is a smart investment for your home gadgets.