On May 18, it was reported that the Xiaomi Mall had just launched a crowdfunding product - Mijia Super Battery, with a crowdfunding price of 16.9 yuan/4 pills (retail price of 19.9 yuan). On May 20, crowdfunding was launched.

This No.5 battery adopts lithium iron battery technology, with a capacity of 2900mAh. Officially, its discharge capacity is 2-5 times that of 1500mAh alkaline battery. The internal winding structure has a larger discharge rate; Equipped with explosion-proof valve PTC、 Three layer safety mechanism of sealing ring; In addition, a single Mijia super battery weighs 16g, which is about 33% less than another Rainbow 5 battery.

Although many electronic products have adopted rechargeable lithium battery design, such as Mijia Super Battery, which is suitable for smart doorbell, remote controller, wireless mouse keyboard, flashlight and other products, No. 5 battery is still indispensable in life.

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