What size are AA NiMH batteries?
Understanding AA NiMH Battery Sizes
When it comes to rechargeable batteries, the AA NiMH (Nickel-Metal Hydride) battery is a popular choice due to its high capacity and versatility. But what exactly are the dimensions of an AA NiMH battery? Understanding these specifications can help you make informed decisions when purchasing or using these batteries in various devices.
AA NiMH Battery Size Guide
The standard size for AA NiMH batteries is similar to that of alkaline AA batteries. However, it's important to note that different manufacturers may have slight variations in their designs and labeling. Here’s a comprehensive guide to help you understand the typical dimensions:
Common AA NiMH Battery Dimensions
- Diameter: Approximately 14.5 mm (0.57 inches)
- Height: Around 50.5 mm (1.99 inches)
- Weight: Typically between 23-26 grams
AA NiMH Battery Size Standards Explained
The International Electrotechnical Commission (IEC) and the American National Standards Institute (ANSI) have established standards for battery sizes. AA batteries, including NiMH, conform to these standards:
- IEC Standard: IEC 60086-3
- ANSI/IEEE Standard: ANSI C18.2 M-2004 (R2009)
AA NiMH Battery Size Comparison
For a better understanding, here’s how AA NiMH batteries compare with other common battery types:
- AAA Batteries: Smaller diameter (10.5 mm) and height (44.5 mm)
- C Batteries: Larger diameter (26 mm) but similar height (50 mm)
- D Batteries: Even larger diameter (34.2 mm) with a similar height
The Right Size for AA NiMH Batteries
To ensure that you purchase the correct size, always check the device's manual or manufacturer specifications. Most devices designed to use AA batteries will accommodate NiMH batteries without any issues.
AA NiMH Battery Dimensions Revealed
The exact dimensions of an AA NiMH battery are as follows:
- Diameter: 14.5 mm ±0.3 mm
- Height: 50.5 mm ±0.7 mm
Quick Guide to AA NiMH Battery Size
To summarize, here’s a quick guide to help you identify and purchase the right AA NiMH batteries:
- Diameter: 14.5 mm (0.57 inches)
- Height: 50.5 mm (1.99 inches)
AA NiMH Battery Specifications Overview
The following table provides an overview of the key specifications for AA NiMH batteries:
| Specification | Value |
|---|---|
| Diameter (mm) | 14.5 mm ±0.3 mm |
| Height (mm) | 50.5 mm ±0.7 mm |
| Weight (g) | 23-26 grams |
| Capacity (mAh) | Typically 2000 mAh - 2700 mAh |
| Chemistry Type | NiMH (Nickel-Metal Hydride) |
AA NiMH Battery Specs and Size
The AA NiMH battery is designed with specific dimensions to fit standard battery compartments. Here’s a detailed look at the specifications:
- Diameter: 14.5 mm ±0.3 mm, ensuring compatibility across devices.
- Height: 50.5 mm ±0.7 mm, allowing for uniform performance in various applications.
FAQ: AA NiMH Battery Sizes
Frequently asked questions about the size of AA NiMH batteries include:
- Q: Are all AA NiMH batteries the same size?
- A: Yes, they are standardized to fit standard AA battery compartments. However, slight variations may exist between brands.
- Q: Can I use an AA NiMH battery in a device designed for alkaline AA batteries?
- A: Yes, most devices that accept alkaline AA batteries will work with AA NiMH batteries as well.
- Q: What is the difference between AAA and AA NiMH batteries?
- A: The main difference lies in their dimensions. AAA batteries are smaller (10.5 mm diameter, 44.5 mm height) compared to AA NiMH batteries.
- Q: How do I measure the size of an AA NiMH battery?
- A: You can use a caliper or ruler to measure the diameter and height accurately.
Conclusion
In summary, understanding the standard dimensions of AA NiMH batteries is crucial for ensuring compatibility with your devices. With a diameter of 14.5 mm and a height of 50.5 mm, these batteries are designed to fit seamlessly into most AA battery compartments. By adhering to established standards like IEC 60086-3 and ANSI C18.2 M-2004 (R2009), manufacturers ensure that AA NiMH batteries meet the necessary specifications for reliable performance.
