Why do alkaline batteries run at 1.5V and rechargeable at 1.2V?

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How is it that they can’t go up to 1.5 V and does this change anything within the electronics? For example, a Game Boy (why that particular example? Beats me!) running at 4.8 V instead of 6?

In: Chemistry

4 Answers

Anonymous 0 Comments

For the most part, electronics operate on a range of voltages. As long as the voltage is high enough to push electrons through, and low enough that you’re not burning anything, it’s all fine.

For example, I have a few of [these displays](https://www.az-delivery.uk/products/0-96zolldisplay) on my desk right now. If you look at [the datasheet](https://cdn.shopify.com/s/files/1/1509/1638/files/0_96_Zoll_Display_Datenblatt_AZ-Delivery_Vertriebs_GmbH_241c4223-c03f-4530-a8c0-f9ef2575872f.pdf?v=1622442722), you can read this line:

>These displays have an on-board 3.3V voltage regulator.

And, if you look at the data tables, you’ll see that the display accepts anything between 3.0V and 5.0V, and they’ll sort themselves out.

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