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AA vs AAA vs AAAA Battery Differences Explained

07 July 2025 15689

 

 

Batteries power our remote controls, flashlights, toys, clocks, wireless mice, digital cameras, and so many other gadgets in our daily lives. Among the most common cylindrical batteries you'll find are AA, AAA, and the less common but still important AAAA. 

 

Understanding their differences are essential for ensuring proper device function, avoiding compatibility issues, and optimizing performance and cost-efficiency. So, this guide will explain each battery type, size, voltage, capacity, chemistry, and typical applications, etc.

 

 

What Is an AA Battery?

 

 

An AA battery also known as a double-A battery, is a standard, single-cell cylindrical dry battery. It is widely used in household and electronic devices. It’s one of the most common battery sizes, known for its balance of capacity, size, and versatility.

 

Key Features

 

What Is an AA Battery?

 

Physical Specifications

  • Dimensions: ~50.5mm (height) x 14.5mm (diameter).
  • Shape: Cylindrical with flat positive (+) and negative (-) terminals.
  • Weight: ~23g (alkaline), slightly lighter for lithium variants.

 

Electrical Properties

  • Voltage: 1.5V (nominal) for disposable (alkaline, zinc-carbon); 1.2V for rechargeable (NiMH/NiCd).
  • Capacity: Typically 2000–3000 mAh (alkaline) or 600–2500 mAh (rechargeable NiMH).

 

Chemistry Types

 

 AA Battery Chemistry Types

 

  • Alkaline: Affordable, long shelf life (5–10 years), moderate drain.
  • Lithium (Li-FeS₂): Lighter, longer runtime, performs better in extreme temperatures.
  • Rechargeable (NiMH/NiCd): Reusable (500+ cycles), eco-friendly, lower voltage (1.2V).

 

Common Uses

  • Remote controls
  • Flashlights
  • Wireless keyboards and mice
  • Toys
  • Wall clocks
  • Portable fans
  • Digital cameras (especially lithium AA)

 

 

AA Battery Specification

Specification Details
Battery Name AA (Double-A)
Standard Designation IEC: LR6 (alkaline), FR6 (lithium), HR6 (NiMH), KR6 (NiCd)
Nominal Voltage 1.5V (alkaline/lithium), 1.2V (NiMH/NiCd)
Capacity 1800–3000 mAh (alkaline), 600–2800 mAh (rechargeable types)
Diameter 14.5 mm (±0.5 mm)
Length 50.5 mm (±0.5 mm)
Weight ~23 g (alkaline), ~15 g (lithium), ~30 g (NiMH)
Chemistry Types Alkaline, Lithium, NiMH, NiCd
Rechargeable Yes (NiMH, NiCd) / No (Alkaline, Lithium)
Terminal Type Button-top (positive), flat base (negative)
Operating Temperature -20°C to +54°C (alkaline), wider range for lithium
Shelf Life 5–10 years (alkaline), up to 15 years (lithium)
Standard Use Clocks, remote controls, toys, flashlights, wireless devices

 

Notes:

  • Capacity varies significantly depending on the chemistry and brand.
  • Lithium AA batteries offer better performance in extreme temperatures and high-drain devices.
  • Rechargeable NiMH batteries have slightly lower voltage but are reusable hundreds of times.

 

 

What Is an AAA Battery?​

 

 

An AAA battery (also called a triple-A battery) is a standard cylindrical dry cell battery. It is commonly used in small, low-to-medium-power electronic devices. It’s smaller and lighter than AA lithium batteries but shares the same voltage, making it ideal for compact gadgets where space is limited.

 

Key Features:

 

What Is an AAA Battery?​

 

Size & Dimensions

  • Height: Approximately 43.6–44.5 mm (1.72–1.75 inches).
  • Diameter: About 10.1–10.5 mm (0.40–0.41 inches).
  • Often referred to as a "triple A" battery.

 

Voltage

  • Standard voltage: 1.5 volts (for alkaline and most primary batteries).
  • Rechargeable NiMH AAA batteries typically provide 1.2 volts.

 

Capacity (Energy Storage)

 

 AAA Battery Capacity (Energy Storage)

 

  • Alkaline AAA: Typically 700–1200 mAh (milliamp-hours), depending on the brand and design.
  • Rechargeable NiMH AAA: 500–1000 mAh (lower capacity but reusable).
  • Lithium AAA: Rare but available, offering higher capacity and better performance in extreme temperatures.

 

Chemistry Types

  • Alkaline (non-rechargeable) – economical and widely available
  • Lithium (non-rechargeable) – lightweight with longer shelf life
  • NiMH (rechargeable) – reusable and suitable for frequent use
  • NiCd (rechargeable) – less common due to environmental concerns

 

Typical Uses

  • TV and AC remote controls
  • Wireless mice and keyboards
  • Digital thermometers
  • Small flashlights
  • Clocks and timers
  • Toys and handheld devices

 

 

AAA Battery Specification​

Specification Details
Battery Name AAA (Triple-A)
Standard Designation IEC: LR03 (alkaline), FR03 (lithium), HR03 (NiMH), KR03 (NiCd)
Nominal Voltage 1.5V (alkaline/lithium), 1.2V (NiMH/NiCd)
Capacity 800–1200 mAh (alkaline), 600–1100 mAh (rechargeable types)
Diameter 10.5 mm (±0.5 mm)
Length 44.5 mm (±0.5 mm)
Weight ~11 g (alkaline), ~7.6 g (lithium), ~14–15 g (NiMH)
Chemistry Types Alkaline, Lithium, NiMH, NiCd
Rechargeable Yes (NiMH, NiCd) / No (Alkaline, Lithium)
Terminal Type Button-top (positive), flat base (negative)
Operating Temperature -20°C to +54°C (alkaline), wider range for lithium
Shelf Life 5–10 years (alkaline), up to 15 years (lithium)
Standard Use Remotes, clocks, wireless devices, toys, flashlights

 

Notes:

  • Batteries AAA are often chosen when device size and weight are critical.
  • Rechargeable AAA batteries (NiMH) are ideal for frequently used gadgets./li>
  • Lithium versions perform better in high-drain or cold environments.

 

 

What Is an AAAA Battery?​

 

 

An AAAA battery, also known as a quadruple-A battery, is a small, cylindrical dry cell battery. It has the same nominal voltage as AA and AAA batteries, but is thinner and shorter. It is typically used in very compact electronic devices where minimal space and weight are crucial.

 

Key Features

 

What Is an AAAA Battery?​

 

Physical Specifications

  • Height: Approximately 41.5 mm (1.63 inches)
  • Diameter: About 8.1 mm (0.32 inches)
  • Shape: Cylindrical with a flat top (standard design)
  • Weight: Lightweight, making it ideal for portable devices.

 

Voltage and Capacity

 

AAAA Battery Voltage and Capacity

 

  • Voltage: Typically 1.5 volts.
  • Capacity: Generally ranges from 500 to 1000 milliamp-hours (mAh), depending on the chemistry and manufacturer.

 

Common Chemical Composition

  • Alkaline (non-rechargeable) – most widely available
  • Lithium (non-rechargeable) – higher performance, longer shelf life
  • Rechargeable versions – rare and not commonly supported in consumer electronics

 

Typical Uses:

  • Styluses (e.g., Microsoft Surface Pen)
  • Laser pointers
  • Bluetooth headsets
  • Glucometers and medical devices
  • Penlights and mini flashlights
  • Small remote controls

 

 

AAAA Battery Specification​

Specification Details
Battery Name AAAA (Quadruple-A)
Standard Designation IEC: LR8D425 (alkaline)
Nominal Voltage 1.5V (alkaline/lithium)
Capacity 400–600 mAh (alkaline), slightly higher for lithium types
Diameter 8.3 mm (±0.1 mm)
Length 42.5 mm (±0.5 mm)
Weight ~6.5 g (alkaline), ~7.6 g (lithium)
Chemistry Types Alkaline, Lithium
Rechargeable Rarely available (not standard)
Terminal Type Button-top (positive), flat base (negative)
Operating Temperature -20°C to +54°C (alkaline), broader range for lithium
Shelf Life 5–10 years (alkaline), up to 15 years (lithium)
Standard Use Styluses, laser pointers, medical devices, penlights

 

Additional Notes:

  • AAAA battery cell is often not sold in bulk and may need to be purchased individually.
  • Sometimes used in devices where battery AAA is too large.
  • Can occasionally be found inside disassembled 9V batteries as internal cells.

 

 

AA vs AAA vs AAAA Battery Differences

 

AA vs AAA vs AAAA Battery Differences

 

Size and Dimensions

Battery Type Diameter Length Weight
AA 14.5 mm 50.5 mm ~23 g
AAA 10.5 mm 44.5 mm ~11 g
AAAA 8.3 mm 42.5 mm ~6.5 g

 

  • Rechargeable AA batteries are the largest and heaviest, offering the highest capacity.
  • AAA lithium batteries are slimmer and slightly shorter.
  • Rechargeable AAAA batteries are the most compact, used in space-constrained devices.

 

Capacity and Voltage

Battery Type Nominal Voltage Typical Capacity (Alkaline)
AA 1.5V / 1.2V (NiMH) 1800–3000 mAh
AAA 1.5V / 1.2V (NiMH) 800–1200 mAh
AAAA 1.5V 400–600 mAh

 

  • All three battery types share a nominal voltage of 1.5V.
  • Capacity decreases with size, which means AA lasts longer under similar load conditions.

 

Common Applications

Battery Type Typical Devices
AA Flashlights, toys, cameras, game controllers, wireless keyboards
AAA Remote controls, clocks, wireless mice, thermometers
AAAA Styluses (e.g., Surface Pen), laser pointers, penlights, glucometers, small remotes

 

Battery Chemistries

 

AA Battery Chemistries Comparison Table

Chemistry Common Name / IEC Code Rechargeable Typical Capacity (mAh) Voltage
Alkaline LR6 No 1800–3000 1.5V
Lithium FR6 No 2700–3000 1.5V
NiMH HR6 Yes 1900–2800 1.2V
NiCd KR6 Yes 600–1000 1.2V
Zinc-Carbon R6 No 600–1600 1.5V
Lithium-Ion 14500 Yes 600–1000 3.6–3.7V

 

Notes:

  • 14500 lithium-ion cells are the same size as AA but output a much higher voltage (3.6V–3.7V) and should only be used in devices designed for them.
  • NiMH is the most popular rechargeable option today due to its eco-friendliness and good performance.
  • Zinc-carbon batteries are outdated but still found in some low-cost products—lower capacity and shorter shelf life.

 

AAA Battery Chemistries Comparison Table

Chemistry Common Name / IEC Code Rechargeable Typical Capacity (mAh) Voltage
Alkaline LR03 No 800–1200 1.5V
Lithium FR03 No ~1200 1.5V
NiMH HR03 Yes 600–1100 1.2V
NiCd KR03 Yes 300–700 1.2V
Zinc-Carbon R03 No 500–900 1.5V
Lithium-Ion 10440 Yes 350–600 3.6–3.7V 

 

  • 10440 lithium-ion batteries are the same size as battery lithium AAA, but output 3.6–3.7V, which can damage devices not designed for them.
  • NiMH AAA batteries are widely used in household gadgets and perform well in medium-drain devices.
  • Alkaline and lithium AAA batteries are best for one-time use, especially in low-drain or long-interval usage devices.

 

AAAA Battery Chemistries Comparison Table

Chemistry Common Name / IEC Code Rechargeable Typical Capacity (mAh) Voltage
Alkaline LR8D425 No 400–600 1.5V
Lithium No ~600 1.5V
NiMH (rare) Yes (very rare) ~350–500 1.2V
Zinc-Carbon Not commonly available No ~300–500 1.5V
Lithium-Ion Not standard Rare/Non-standard Varies (not standard) 3.6–3.7V

 

Notes:

  • Rechargeable batteries AAAA (e.g., NiMH or lithium-ion) are rarely manufactured and not widely supported by consumer devices.
  • AAAA Alkaline batteries are the most common, used in styluses, laser pointers, and medical devices.
  • Some lithium versions may exist for specialty or industrial applications, but they are not typically sold in retail.

 

Price and Availability​

Battery Type Availability Approx. Price (per unit)
AA Very widely available $0.30–$1.00
AAA Very widely available $0.25–$0.90
AAAA Less common, specialty stores $1.00–$3.00

 

  • AA and AAA rechargeable batteries are easily found in supermarkets, convenience stores, and online.
  • AAAA batterier may need to be purchased online or in electronics-specific shops.

 

Pros and Cons​

 

AA Battery

 

AA Battery

 

Pros:

  • Highest capacity & runtime
  • Widest variety of chemistries
  • Best for high-drain devices
  • Excellent value & availability

 

Cons:

  • Largest physical size (won't fit in AAA/AAAA slots)
  • Heavier than smaller types

 

AAA Battery

 

AAA Battery

 

Pros:

  • Excellent balance of size & power for medium/low drain
  • Ubiquitous availability
  • Lightweight
  • Cost-effective for their common use cases

 

Cons:

  • Lower capacity than AA (shorter runtime)
  • Not suitable for very slim or high-drain devices

 

AAAA​ Battery

 

AAAA​ Battery

 

Pros:

  • Essential for very thin/specialized devices
  • Offers decent runtime despite size
  • Lithium versions provide superior shelf life/cold perf.

 

Cons:

  • Very limited availability (hard to find in stores)
  • Significantly higher cost per battery
  • Lowest capacity of the three
  • Chemistry options are limited

 

Where to Buy?​​

 

AA & AAA Battery:​

 

AA & AAA Battery:​

 

  • Convenience Stores/Gas Stations: Often have blister packs near checkout (higher markup).
  • Supermarkets & Drugstores: Typically have dedicated battery aisles with multipacks (better value).
  • Warehouse Clubs (Costco, Sam's Club): Often sell large value packs, excellent for families or heavy users.
  • Hardware Stores: Good selection, including heavier-duty options.
  • Electronics Stores: Widest range of brands and chemistries, including lithium and premium rechargeables.
  • Office Supply Stores: Good for multipacks.

 

AAAA Battery:​

 

AAAA Battery:​

 

  • Large Electronics Stores (Best Buy):Often carry them, usually Alkaline, near computer accessories.
  • Office Supply Stores (Staples, Office Depot/Max): Good chance of carrying them.
  • Major Online Retailers (Amazon): Offers the widest selection (Alkaline, Lithium, Rechargeable NiMH) from various brands. You can compare prices easily.
  • Specialty Battery Retailers (Batteries Plus, Battery Junction): Reliable source online.
  • Local pharmacies/Walmart/Target *may* have them near electronics, but do not rely on this. Call ahead or check online stock before going!

 

 

AA vs AAA vs AAAA: How to Choose?

 

AA vs AAA vs AAAA: How to Choose?

 

Choosing between AA, AAA, and AAAA batteries depends on several key factors including your device’s power needs, size constraints, and usage habits. Here's a breakdown to help you decide:

 

1. Check Device Requirements First

  • Always follow the manufacturer's specifications.
  • Inserting the wrong size (even if it fits) can cause device malfunction or damage.

 

2. Consider the Device’s Power Demand

Battery Type     Best For Power Demand
AA Toys, cameras, game controllers, flashlights High
AAA Remotes, clocks, wireless mice, small gadgets Medium
AAAA Styluses, penlights, compact medical devices Low

 

  • AA lithium batteries provide more energy storage — ideal for devices that run often or need bursts of high power.
  • AAA rechargeable battery is great for everyday items that don’t need a lot of power.
  • Battery AAAA is used in slim devices where even AAA is too large.

 

3.Consider Size and Space

Battery Type Physical Size When to Choose
AA Large (14.5 × 50.5 mm) When power > size matters
AAA Medium (10.5 × 44.5 mm) When space-saving is important
AAAA Small (8.3 × 42.5 mm) When minimal size is critical

 

If your device has a compact battery compartment, AAA or AAAA is required.

 

4.Think About Rechargeability

If you use the device… Choose
Daily or frequently NiMH Rechargeable AA/AAA
Occasionally (e.g., remote control) Alkaline AA/AAA/AAAA
In extreme temperatures Lithium AA/AAA

 

Rechargeable batteries save money over time, especially for high-use electronics.

 

5.Budget and Availability

  • Lithium AA battery and AAA lithium battery are widely available and cheaper in bulk.
  • 9v battery AAAA is more expensive and may need to be ordered online or found in specialty stores.

 

Where to Buy?

  • Local stores: Walmart, Target, Best Buy, CVS, Home Depot
  • Online: Amazon, Newegg, battery specialty websites
  • In bulk: Costco, Sam’s Club, online wholesale platforms

 

When to Choose Each Type?

 

When to Choose Each Type?

 

PICK AA IF:​​

  • Your device has space for thicker batteries
  • You need max runtime (e.g., gaming marathons, camping trips)
  • Using power-hungry electronics (digital cameras, RC cars)

 

PICK AAA IF:​​

  • Device is compact (TV remote, computer mouse)
  • Moderate runtime suffices (replaced every 6-12 months)
  • Weight matters (headlamps, portable audio recorders)

 

PICK AAAA ONLY IF:​​

  • Device specifically requires it (e.g., Microsoft Surface Pen)
  • No alternatives fit physically (check manual!)
  • Specialty use: Medical glucose meters, slim laser pointers

 

 

AA, AAA, AAAA Battery Summary Table

(This table provides a quick-glance reference for all the key differences:)

Feature AA Battery AAA Battery AAAA Battery
​​Common Name Double-A Triple-A Quadruple-A
​​Standard​​ ANSI/IEC LR6/15 ANSI/IEC LR03/24 ANSI/IEC LR61/25
​​Diameter​​ ~14.5 mm ~10.5 mm ~8.3 mm
​​Height​​ ~50.5 mm ~44.5 mm ~42.5 mm
Volume​​ Largest Medium Smallest
​​Weight (Alk.)​​ ~23 grams ~11.5 grams ~6.5 grams
​​Voltage (Nom.)​​ 1.5V (1.2V NiMH) 1.5V (1.2V NiMH) 1.5V (1.2V NiMH)
​​Typ. Cap. (Alk) 1800-2700+ mAh 800-1200 mAh 400-650 mAh
​​Typ. Cap. (Lith)​​ 2400-3300 mAh 1000-1300 mAh 550-750 mAh
​​Typ. Cap. (NiMH)​​ 800-2800 mAh 600-1100 mAh 300-550 mAh
Common Uses​​ Flashlights, toys, portable radios/speakers, some keyboards, some remotes Remotes, computer mice, small flashlights, digital thermometers/timers Slim styluses (Surface, Lenovo, etc.), some laser pointers, glucometers
Availability​​ Extremely High Extremely High Moderate to Low
​​Price Per Unit​​ Low-Moderate-High (Depends on Chem) Low-Moderate-High (Similar to AA, slightly cheaper Alkaline) Moderate-High (Significantly more than AAA Alk)

 

 

Tips for Disposal of AA, AAA, AAAA Batteries​

 

Tips for Disposal of AA, AAA, AAAA Batteries​

 

Proper disposal of batteries is important for environmental safety and to comply with local regulations. Here are some essential tips for safely disposing of AA, AAA, and AAAA batteries:

 

1.Identify the Battery Type

Battery Chemistry Disposal Method
Alkaline (non-rechargeable) Usually safe to dispose of in household trash (check local laws)
Lithium (non-rechargeable) Recycle—can be hazardous in trash
NiMH (rechargeable) Recycle only—contains heavy metals
NiCd (rechargeable) Must be recycled—cadmium is toxic
Zinc-carbon Typically disposed of with household waste (if allowed)

 

2.Store Used Batteries Safely Before Disposal

  • Tape battery terminals to prevent short-circuiting or fire hazards.
  • Keep used batteries in a dry, cool, non-metal container (e.g., plastic tub or zip bag).
  • Keep away from children and pets.

 

3.Use a Battery Recycling Program

 

Use a Battery Recycling Program

 

Retail drop-off: Many retailers accept batteries for recycling:

  • Best Buy
  • Staples
  • Home Depot
  • Lowe’s

 

Recycling programs & organizations:

  • Call2Recycle.org (U.S. and Canada)
  • Local waste management agencies
  • City hazardous waste collection events

 

Don’t Do This:

  • Don’t burn batteries – this releases toxic gases.
  • Don’t throw lithium or rechargeable batteries in household trash – risk of fire and contamination.
  • Don’t crush or puncture batteries – can cause leakage or explosion.

 

 

AA, AAA, AAAA Battery Datasheet

 

AA Battery Datasheet

 

AAA Battery Datasheet

 

AAAA Battery Datasheet

 

 

By understanding the differences between AA, AAA, and AAAA batteries, we can summarize the following conclusions to help you choose the right battery for your device:

 

Size Dictates Use (Match size to your device's compartment):

  • AA lithium battery: Largest capacity → High-drain devices (toys, cameras).
  • Battery AAA lithium: Compact → Medium-drain devices (remotes, mice).
  • Duracell AAAA battery: Thinnest → Specialty slim devices (stylus pens).

 

Voltage Consistency:

  • Alkaline/Lithium/Zinc-Carbon: 1.5V.
  • NiMH rechargeables: 1.2V (works in most 1.5V devices).

 

Capacity = Runtime:

Runtime decreases: AA > AAA > AAAA.

 

Chemistry Choices:

  • Alkaline: Reliable, affordable (everyday use).
  • Lithium: Premium performance (long life, cold weather).
  • NiMH: Best long-term value (rechargeable, eco-friendly).

 

Availability & Price:

  • AA/AAA: Widely available, affordable.
  • AAAA: Harder to find, more expensive.

 

 

Frequently Asked Questions

What are AAAA batteries used for?

AAAA 1.5 v battery is primarily used in small, compact electronic devices that require minimal power, such as laser pointers, penlights, and some Bluetooth headsets. They are also found in specialized gadgets like hearing aid remotes and certain gaming controllers. 

How to dispose of aa batteries?

Most modern AA alkaline batteries 1.5 v can generally be disposed of with regular household trash. However, rechargeable AA batteries (e.g., nickel-cadmium, lithium-ion) contain hazardous materials and must be taken to designated recycling centers or hazardous waste facilities. ​

How many volts is a aa battery?

A standard AA battery typically has a voltage of 1.5 volts. Some rechargeable AA batteries may have a slightly lower nominal voltage of 1.2 volts. However, the actual voltage can fluctuate depending on the battery's chemistry, age, and usage, ranging from around 1.2V to 1.6V. ​

Can aaa replace a battery?

AAA batteries can replace AA batteries in some devices. Only if the device is specifically designed to accommodate both sizes, such as certain flashlights or gadgets with adjustable battery compartments. However, AAA batteries have lower capacity and voltage. 

How long do aaa batteries last?

AAA batteries' lifespan varies by type: standard alkaline AAAs typically last 3-5 years under normal use, while lithium-based AAAs can last 10+ years due to low self-discharge rates. Rechargeable AAAs endure 500-1000 charge cycles, translating to 2-3 years with frequent use.

Where to buy aaaa batteries?

AAAA batteries, also known as 9-volt or small cylindrical batteries, can be purchased from electronics retailers. These batteries are commonly used in devices like handwriting pens, Bluetooth earphones, and remote controls. ​

What is the difference between AAAA and AA batteries?

The main difference between AAAA and AA batteries is their size and the amount of energy they can store. AA batteries are larger and have a higher capacity. They are used in more energy-demanding gadgets like remotes and toys.But AAAA batteries are suitable for low-power devices like laser pointers and styluses. 

Which is bigger, AAA or AA battery?

The AA battery is larger than the AAA battery. Lithium battery AA measures approximately 50.5 mm in length and 14.5 mm in diameter. While AAA batteries are shorter and thinner at around 44.5 mm in length and 10.5 mm in diameter. 

Can I use aaaa instead of AAA?

No, you generally cannot use an AAAA battery in place of a AAA battery. AAAA batteries are smaller and have lower capacity. Using AAAA batteries in AAA-powered devices may result in poor performance or damage due to incompatible dimensions and power output. 

Why do AAA batteries cost more than AA?

AAA batteries are smaller, but it costs more than AA batteries. This primarily due to a combination of factors including manufacturing precision, regional demand, and the specific type of battery (e.g., alkaline vs. lithium). ​

 

 

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Anderson Snape
Anderson Snape, born in 1972, completed his undergraduate studies at Loughborough University in the UK in 1993 and received a bachelor's degree in electrical engineering. In 1996, he furthered his studies and obtained a master's degree from Newcastle University. As a senior engineer in the field of integrated circuit testing, Anderson has been working in the chip testing industry for more than 20 years, accumulating profound professional experience and holding unique insights into the industry. He not only focuses on technical practice, but also actively engages in chip-related science popularization work. At the same time, he keeps up with the current hot topics in the semiconductor industry and has made important contributions to the progress and development of the industry.