One 18650 can replace two No. 5 batteries

time：2025-01-11 16:02:27 Gadget Highlights

Can two No. 5 batteries be replaced with one 18650

Yes, two No. 5 batteries can be replaced with one 18650 battery.

One 18650 battery has a voltage of 3.7V, while two No. 5 batteries have a voltage of 1.8V. Therefore, when using an 18650 battery, it is recommended to connect a diode in series to reduce the voltage.

It should be noted that the power of the 18650 battery is much greater than that of the No. 5 battery, taking the No. 5 battery of Nanfu Juneng Ring as an example, its power is probably not more than 1500mAh, and the power of a 18650 battery can reach 2500mAh. Therefore, when using 18650 batteries, it is necessary to ensure that the rated current of the equipment can reach the current of the original lithium battery.

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