Can dry batteries be replaced?

Someone on the Internet asked: "Can the 14500(lithium iron phosphate) battery really replace the ordinary No. 5 rechargeable battery? Which should I compare with eneloop? Another 1,8650 can be used after DIY to use the number 5 battery case. "The following is the answer from the lithium battery practitioner.

Technically speaking, lithium iron phosphate(3.2 V) is the only type of battery in the lithium battery family that is suitable for replacing dry batteries because its voltage is lower than that of other lithium ion batteries(3.7 V) and is basically twice that of dry batteries(1.5 V).

There are actually 3V lithium metal batteries, but the high cost of lithium metal batteries is high. Only a few companies in a few countries have mass production. Currently, they are basically used for military use and less for civilian use.

The 14500 battery has two dry batteries on it, which is smaller than eneloop, but isn't it better? I make lithium batteries, but I'm going to say no. Eneloop is the ultimate in nickel-metal hydrogen, but the 14500 battery is a partial door in a lithium battery. The common mass production model of lithium batteries is 18650, or various types of batteries for mobile phones. It is not fair to use the partial door product compared with the best product.

After the 18650 transformation, it can replace dry batteries. My side business is playing stereo. In this circle, using a dry battery player, such as Sony's d50, many enthusiasts have replaced lithium batteries. Two points: 1, lithium battery discharge platform is stable, and 2, lithium batteries have internal resistance far less than dry batteries. Both of these make lithium batteries have less interference with the sound source. However, to transform the battery box, it requires some hands-on ability.

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