Why are alkaline batteries (AAA or AA) made to be 1.5V while rechargeables are 1.2V?

In practice, alkaline batteries and rechargeable batteries can be used interchangeably in sets. They have only different voltage characteristics.

Best Rechargeable AA Batteries (Top Picks)

A Comprehensive Guide on Batteries Used in Flashlights – EBLOfficial

AA vs. AAA Batteries: 7 Ways They Are Different - History-Computer

Long Lasting Wholesale Aa Batteries To Power Your Digital Devices

1.5 Volt Battery: The Ultimate Guide

Exell 1.2V NIMH AAA 1000mAh Rechargeable Battery with Tabs

vmax ct1250 1250Wrms/2500Wmax Audio battery

Best Rechargeable AA and AAA Batteries 2024: More power for longer

All about 1.5v battery - is 1.5v battery the same as other battery-Tycorun Batteries

ULTRA LONG-LASTING: In the Box, 12-pack of 1.5 volt AAA alkaline batteries, Long lasting alkaline batteries provide dependable power for everyday use

Alkaline AAA Batteries 12 Pack, Triple A Batteries with Long-Lasting Power, AAA Battery for Household and Office Devices, Leakproof 1.5V Batteries AAA

Regular AA & AAA batteries are rated 1.5V and rechargeable ones are rated 1.2V why the dif and does it make a dif to the devices using them? - Quora

14500 Battery vs AA Battery: Comprehensive Comparison Guide

Charging Cell Type: NiCd, Ni-MH,Alkaline,LiFePO4 14500 10440. Capacity: AA:1600mah / AAA:700mah. Compatible : AA, AAA. Battery P roduct M anual.

AA AAA LR6 LR03 1.5V toy battery 14500 alkaline rechargeable battery w/h charger

[ 4 Packs High Power 1100mWh Capacity ] Pownergy Rechargeable Lithium AAA batteries 4 Packs,each with 1100mWh and Constand output with 1.5V, Direct

Rechargeable Lithium AAA Batteries 4Packs, 1100 mWh Rechargeable AAA Battery Constant Output 1.5V Li-ion AAA Battery, 2H Fast Charge with USB Cable