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How many mAh is in a D battery?

Published in Battery Capacity 2 mins read

A D battery typically contains between 12,000 and 18,000 mAh.

Understanding D Battery Capacity

The capacity of a D battery, measured in milliampere-hours (mAh), indicates how much electrical charge it can store and deliver. The mAh rating is crucial for determining how long the battery will last in a device. Here's a breakdown:

  • Typical Range: Alkaline D batteries usually fall within the 12,000 to 18,000 mAh range, as indicated in the provided reference.

Factors Affecting Capacity

Several factors influence a D battery's actual usable capacity:

  • Type: Alkaline batteries are the most common, but rechargeable D batteries are available, and they typically have different mAh ratings.
  • Usage Conditions: High current applications will drain the battery faster than low current uses, impacting the effective mAh.
  • Temperature: Extremely hot or cold temperatures can reduce battery performance and capacity.
  • Age: Over time, batteries naturally lose some capacity due to internal chemical reactions.

D Battery Specifications

Characteristic Value
Typical Capacity 12,000–18,000 mAh
Energy 18–27 Wh
Nominal Voltage 1.5 V

Practical Insights

  • When comparing batteries for a device, always check the mAh rating to understand the potential lifespan.
  • Higher mAh values generally mean longer battery life, given similar usage conditions.
  • Rechargeable D batteries are more economical in the long run but tend to have a slightly lower initial capacity than alkaline versions.

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