Top CMOS Battery Brands: Check Out Panasonic, Duracell, and Energizer!

The CMOS battery is a small but vital component in modern computers, responsible for saving BIOS settings and keeping the internal clock ticking even when the computer is turned off. There are several reputable brands known for producing reliable CMOS batteries, ensuring that your computer remains operational and maintains its settings. Brands such as Duracell, Panasonic, Energizer, and Renata are often recommended for their quality and longevity in the CMOS battery market. For a more in-depth exploration of these brands and their unique features, check out the list below.

Illustration of cmos battery

Best brands of cmos battery in 2025

Maxell

Maxell, a renowned leader in the battery industry, stands out as a premier producer of CMOS batteries, particularly with its advanced coin cell batteries. The company has developed innovative products like the CR2032 lithium manganese dioxide battery, which boasts a nominal capacity of 220 mAh and an operating temperature range of -20 to +85°C. Maxell's batteries, such as the CR17500AU, feature higher energy density and are suitable for IoT devices, showcasing the company's commitment to technological innovation. With a strong presence in the global market, Maxell aims to achieve significant sales growth, targeting around 30 billion yen in all-solid-state battery sales by fiscal 2030. The company's focus on quality and reliability has earned it a substantial market share, particularly in the Asia Pacific region.

Panasonic

Panasonic is a leading producer of EV batteries, holding a significant market share in the global industry. As of 2023, Panasonic captured around 6.8% of the global EV battery market, delivering 35.2 GWh of EV battery power year-to-date and maintaining a strong position as the world's fourth largest EV cell supplier. Over 80% of Panasonic's EV battery production is supplied to Tesla, highlighting their longstanding and critical business relationship. Despite recent challenges, including a 60% cut in Japan's EV battery production, Panasonic remains a major player, with a forecasted revenue of $66.5 billion in 2024, driven by its energy solutions division. Panasonic's commitment to innovation and partnerships with key automakers solidifies its position in the EV battery market.

Duracell

Duracell, a leading brand in the battery industry, is renowned for its high-quality CMOS batteries, which are essential for powering CMOS memory and real-time clocks in computers and gaming devices. With a strong foothold in the global market, Duracell's wide range of products, including those for remote controls and high-drain devices, has contributed significantly to its market position. The company's batteries are part of a larger alkaline battery market projected to grow from $8.70 billion in 2024 to $13.70 billion by 2032, with a CAGR of 5.84%. Duracell's dominance is further underscored by its presence in the coin cell batteries market, which is expected to grow from $4.50 billion in 2022 to $7.21 billion by 2030, with a CAGR of 6.11%.

Energizer

Energizer is a leading producer of coin cell batteries, including CMOS batteries, known for its high quality and reliability. The company holds a significant market share in the battery industry, with its alkaline battery segment generating $3 billion in revenue in 2021. Energizer's strong presence is attributed to its focus on innovation, wide product range, and robust distribution network. In the global coin cell batteries market, which is projected to grow at a CAGR of 6.11% from 2023 to 2030, Energizer is among the key players driving market growth. The company's products, such as the CR2032 CMOS BIOS 3V Lithium Coin Battery, are widely used in various electronic devices.

Renata

Renata, a subsidiary of Swatch Group SA, is a leading producer of high-quality coin cell batteries, including the CR2032 lithium 3V coin cell battery, which is widely used in devices such as watches, computer motherboards, and calculators. Renata batteries are known for their excellent performance, high capacity retention, and extensive shelf-life, making them ideal for various applications. The company's innovative approach and interdisciplinary team of specialists ensure the development of top-quality batteries, with over 900 customer-specific products designed. Renata's lithium coin cell batteries hold a significant market share, with lithium coin cells accounting for more than 36.8% of the market in 2023. The company's commitment to research and development, along with its modern high-tech facilities, positions Renata as a reliable and innovative force in the battery industry.

Toshiba

Toshiba is a renowned brand in the electronics industry, but it is not specifically highlighted as a leading producer of CMOS batteries. However, Toshiba is known for its advanced battery technologies, such as the SCiB™ lithium-ion rechargeable battery, which is used in various applications. In 2024, Toshiba holds a significant market share in several sectors, including a 6.5% share of the global electronics market and an 8.5% share in the global nuclear power market. The company's focus on renewable energy and innovative technologies, such as smart devices and IoT solutions, contributes to its strong market presence. Despite this, specific data on CMOS batteries is not prominently featured in Toshiba’s recent statistics. For more detailed financial insights, you can view Toshiba's annual report.

Sony

Sony is solidifying its position as a leading producer of CMOS image sensors, having increased its market share to 45% in 2023 from 42% in 2022, according to Yole Group. The company's diverse offerings, including innovations in performance, integrability, and new sensing capabilities, have driven this growth. The CMOS image sensor market, valued at $21.8 billion in 2023, is expected to reach $28.6 billion by 2029 with a 4.7% CAGR. Sony's dominance is further reinforced by its strong presence in the automotive sector, where the image sensor market is forecasted to grow from $2.3 billion in 2023 to $3.2 billion by 2029. This expansion underscores Sony's commitment to advanced imaging technologies. For more insights into Sony's market leadership, visit Sony's CMOS image sensor advancements.

GP Batteries

GP Batteries, with nearly 60 years of industry experience, is a leading manufacturer of primary and rechargeable batteries, including CMOS batteries. The company produces over 6 billion batteries annually and operates 14 global factories in China, Malaysia, and Vietnam. GP Batteries is one of the largest consumer battery manufacturers in China and has a significant presence in the Asia-Pacific region, which holds a substantial market share in the battery industry. The company's high-speed automated manufacturing capabilities and extensive global supply chain ensure reliable and efficient delivery of its products. GP Batteries' commitment to quality and innovation makes it a trusted brand in the battery market. For more detailed information, visit their corporate information page.

Varta

VARTA is a leading producer of high-quality batteries, particularly renowned for its primary Lithium button cell types, which are ideal for CMOS applications. These batteries offer a voltage of 3.0 V and capacities ranging from 27 mAh to 560 mAh, ensuring low internal resistance, high capacity for longer running times, and low self-discharge for extended storage and operating life. VARTA's batteries are used in various applications, including alarm systems, gas consumption meters, and smoke detectors, highlighting their reliability and performance. As a major player in the consumer battery market, VARTA competes with other industry leaders like Panasonic and Duracell. Their extensive battery experience and global resources make them a preferred choice for electronic device designers. For more detailed information on their product offerings, visit their VARTA Lithium batteries page.

Rayovac

Rayovac is renowned as one of the top producers of CMOS batteries, known for their high-quality and reliable lithium coin cell batteries. The Rayovac CR1216 3V Lithium Coin Cell Battery, for example, is widely used in various applications including CMOS memory backup for laptops and motherboard clock backup, offering a voltage of 3V and an amperage of 29mAh. In 2001, Rayovac reported a significant increase in battery sales, with a 27% growth in rechargeable battery sales and a 10% increase in alkaline sales, highlighting their market strength. Their batteries are designed to meet stringent requirements and ensure long-lasting performance. Rayovac's market share in the general battery category increased to 18.8% in 2001, demonstrating their dominance in the industry. For more information, you can explore the Rayovac CR1216 3V Lithium Coin Cell Battery.