Alkaline Batteries: Difference between revisions
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**” An alkaline battery (IEC code: L) is a type of primary battery where the electrolyte (most commonly [[potassium hydroxide]] ) has a [[pH value]] above 7. Typically, these batteries derive energy from the reaction between [[zinc]] metal and [[manganese dioxide]] . | **” An alkaline battery (IEC code: L) is a type of primary battery where the electrolyte (most commonly [[potassium hydroxide]] ) has a [[pH value]] above 7. Typically, these batteries derive energy from the reaction between [[zinc]] metal and [[manganese dioxide]] . | ||
*Slightly more energy density than a [[Zinc-Carbon Battery]] and less prone to leakage/corrosion | *Slightly more energy density than a [[Zinc-Carbon Battery]] and less prone to leakage/corrosion | ||
*’’’[[Nominal Voltage]] / “Fully Charged” around 1.5v’’’ | |||
**Discharged varies on how sensitive a decide is to low input voltage, some devices (ie [[Joule Thief]] as an extreme example) can use what may have been “dead” batteries from another device | |||
**1.36v is pretty much done, even in small digital devices | |||
=Form Factors Typically Offered= | =Form Factors Typically Offered= | ||
Latest revision as of 20:09, 27 February 2026
Basics
- From Wikipedia:
- ” An alkaline battery (IEC code: L) is a type of primary battery where the electrolyte (most commonly potassium hydroxide ) has a pH value above 7. Typically, these batteries derive energy from the reaction between zinc metal and manganese dioxide .
- Slightly more energy density than a Zinc-Carbon Battery and less prone to leakage/corrosion
- ’’’Nominal Voltage / “Fully Charged” around 1.5v’’’
- Discharged varies on how sensitive a decide is to low input voltage, some devices (ie Joule Thief as an extreme example) can use what may have been “dead” batteries from another device
- 1.36v is pretty much done, even in small digital devices
Form Factors Typically Offered
- Typically offered in:
- AAA (the smallest)
- AA
- C (larger but not worth it (ie either commit to larger, or use smaller)
- D (typically used in heavy draw devices, also useful for long runtime/emergency use stuff)
- Somewhat obsolete in the world of Rechargeable Batteries however
- 6v “Lantern Battery”
- Largely obsolete in the world of Cheap LED Lights, although a LED Light using this type of battery could probably run for eons (unlike the old Incandescent/Halogen/CFL lights etc)
- 9v Battery
- Odd connector, mainly used in Smoke Detectors / Carbon Monoxide Alarms etc
Recycling
- Who can take them?