SmarToools RB40 AAA 1.5V 750mWh Rechargeable Battery
1,250.00৳ Original price was: 1,250.00৳ .599.00৳ Current price is: 599.00৳ .
Key Highlights
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Constant 1.5V output for stable device performance
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750mWh high energy capacity (≈400mAh)
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Type-C USB direct charging – no charger needed
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Fast charging in ~2 hours
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Rechargeable up to 1000 cycles
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Built-in safety protection (over-charge, short-circuit, over-current)
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LED charging indicator
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Eco-friendly & cost-saving alternative to disposable batteries
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Compatible with all AAA battery devices
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Model: RB40-AAA
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Battery Type: Lithium-ion (Li-ion)
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Voltage: 1.5V (constant output)
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Energy Capacity: 750mWh
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Typical Capacity: 400mAh
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Charging Method: Type-C USB
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Charging Time: Approx. 2 hours
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Cycle Life: Up to 1000 recharges
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Weight: 6.9g ±0.5g (per battery)
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Set Quantity: 4 Pieces
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Certifications: CE, RoHS, FCC
🔋 SmarToools RB40 AAA 1.5V 750mWh Rechargeable Battery
Power your everyday devices with confidence using the SmarToools RB40 AAA 1.5V Rechargeable Batteries. Built with advanced lithium-ion technology, these batteries deliver a constant 1.5V output, ensuring stable and reliable performance—unlike traditional 1.2V NiMH batteries.
Each battery features direct Type-C USB charging, eliminating the need for bulky chargers. Simply plug in a standard Type-C cable and recharge anywhere using a phone adapter, power bank, or laptop. With a 750mWh energy capacity, these batteries provide longer runtime and can be recharged up to 1000 times, saving money and reducing environmental waste.
Perfect for remote controls, wireless mouse & keyboards, toys, flashlights, and other AAA-powered devices, the SmarToools RB40 is a smart, eco-friendly power solution for modern households in Bangladesh.













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