Timeline for Why have 3 AAA batteries not one AA and raise voltage (how expensive is it to raise voltage from 1.5 to 5v)?
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| Nov 10, 2023 at 3:34 | comment | added | Solar Mike | They only come with one set of batteries when sold - manufacturing costs. Running costs are down to the owners. A CRUCIAL difference. | |
| Nov 10, 2023 at 0:34 | comment | added | Martian2020 | @SolarMike, batteries run out and new needed, you calc applies to one-time-use-only light. | |
| Nov 10, 2023 at 0:25 | comment | added | Martian2020 | @brhans, I'm nor sure why you missed number of A letters in the question. 3xAAA -> AA,, not AAA. | |
| Nov 10, 2023 at 0:24 | comment | added | Martian2020 | @MichalPodmanický, I'm nor sure why you missed number of A letters in the question. 3xAAA -> AA,, not AAA. | |
| Nov 9, 2023 at 12:58 | comment | added | brhans | You write "If true I will gladly pay $1 higher price knowing I'll save much more on batteries." - but you've failed to consider that your single AA cell will go flat 3x quicker (or probably actually even sooner than that). 3 cells provide 3x the energy storage. | |
| Nov 9, 2023 at 12:41 | comment | added | winny | @SolarMike Especially if the customer needs to supply his or her own batteries. | |
| Nov 9, 2023 at 11:35 | answer | added | Chris H | timeline score: 1 | |
| Nov 9, 2023 at 11:27 | answer | added | Simon B | timeline score: 1 | |
| Nov 9, 2023 at 8:23 | comment | added | Solar Mike | Because 3 AAA batteries are cheaper than 1 AA battery plus the DC-DC buck charger. | |
| Nov 9, 2023 at 4:11 | comment | added | jsotola |
please focus your question ... you asked two questions that are somewhat on topic here ... How small by volume and weight? and How much load is LED?... they cannot be answered with one answer ... the other questions about price are off topic here
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| Nov 9, 2023 at 3:42 | comment | added | MiNiMe | I'd say the question falls into the Don't ask about category - electronics.stackexchange.com/tour | |
| Nov 9, 2023 at 3:27 | comment | added | Michal Podmanický | 3xAAA have bigger capacity than 1xAAA (last longer)and also no needs a converter. Thats two advantages. | |
| Nov 9, 2023 at 3:04 | comment | added | periblepsis | I'm not sure what this is all about. It's quite possible and there are already efficient ICs for boost circuits that accept AAA batteries: LM2621 for example. I suspect I'm just missing the real question, though. Things get a little more complex when using dynamos (like on bicycles.) But that's not your question. | |
| Nov 9, 2023 at 2:28 | history | edited | Martian2020 | CC BY-SA 4.0 |
added 347 characters in body
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| Nov 9, 2023 at 2:13 | history | asked | Martian2020 | CC BY-SA 4.0 |