Varta High Energy Alkaline Battery 4001 / LR1 1.5V

The VARTA CR2450 is a high-quality 3-volt lithium button cell with a very high capacity, which has been developed for reliable and extremely long-lasting power supply in demanding electronic devices. Based on proven lithium manganese dioxide technology (Li-MnO2), it offers one of the highest energy densities in button cell format. As a loose cell ("bulk"), it is optimally designed for the initial equipment (OEM) of devices where maximum service life is essential.Highlights at a GlanceVery high capacity: Offers exceptionally long operating time for energy-intensive applications.Industrial quality: Guarantees consistent and reliable performance for professional devices and series production.Extreme longevity: Up to 10 years shelf life thanks to extremely low self-discharge.Wide temperature range: Works reliably even under demanding thermal conditions.Tested reliability: Every cell meets the highest quality standards for maximum performance and leak safety.Reliable Power for Demanding ElectronicsThe VARTA CR2450 is the preferred power source for a variety of devices where maximum autonomy and minimal maintenance are crucial. Its main area of application is in smart home and security sensors (e.g. thermostats, door and window contacts), in medical technology, in remote controls with displays, and in industrial backup applications that need to ensure a high energy reserve over years.Superior Lithium Manganese Dioxide TechnologyLithium manganese dioxide technology (Li-MnO2) enables a high nominal voltage of 3 volts and an extremely low self-discharge of less than 1% per year at room temperature. This guarantees maximum readiness for use even after many years of storage. Its high capacity and stable performance curve are key to reliability in long-life "fit and forget" applications.Developed for Industrial IntegrationAs an unpackaged single cell, the CR2450 is intended for direct processing in industrial manufacturing (OEM) or for needs-based use in service and maintenance. This reduces packaging waste and streamlines workflows for professional users who rely on consistently high quality and easy handling. Specifications                                                                                                                                                        Model              VARTA Lithium Button Cell CR2450               Battery Type              Lithium manganese dioxide (Li-MnO2)               Nominal Voltage (V)              3.0               Capacity (mAh)              610               Diameter (mm)              24.5               Height (mm)              5.0               Weight (g)              6.2        FAQs about the VARTA Lithium Battery CR2450What does the designation CR2450 mean?The designation indicates the properties and size of the cell. "C" stands for lithium chemistry, "R" for the round shape. The numbers "2450" stand for the dimensions: 24.5 mm in diameter and 5.0 mm in height.What does "bulk" mean?"Bulk" means that the batteries are supplied as loose goods in packaging units suitable for industry (e.g. in trays or boxes) and not in separate consumer packaging such as a blister pack. This is ideal for industrial production (OEM).Is this battery rechargeable?No. This is a lithium primary battery. Under no circumstances should charging be attempted. Charging attempts are extremely dangerous and can result in fire or explosion.How should this battery be disposed of?Batteries must not be disposed of with household waste. As an industrial battery, it is subject to the provisions of the Battery Act. Please take the empty battery to the intended industrial or municipal collection points to ensure proper and environmentally friendly recycling.

The Varta Longlife Power 4903, internationally standardised as LR03 (AAA/Micro), is the powerful all-round battery for professional and industrial applications with high energy requirements. This powerful alkaline battery has been specially developed for devices that require a high and often fluctuating power output. The practical 4-pack foil packaging is optimised for professional use and makes handling and stocking easier in a commercial environment.Highlights at a glancePowerful energy: Developed for devices with high and fluctuating energy requirements.Professional reliability: Guarantees constant and long-lasting performance for commercially used devices.Optimised packaging: The 4-pack foil packaging is ideal for easy packaging and service requirements.Long shelf life: With a shelf life of 10 years, perfect for stockpiling with minimal self-discharge.Guaranteed quality: Proven Varta product performance, manufactured in Germany.Powerful in professional applicationsThe Varta Longlife Power LR03 is the ideal choice for a wide range of professional devices that require more than just standard power. It is used in medical technology (e.g. blood pressure monitors), in security technology (keyboards for alarm systems, mobile sensors) and in office and IT environments (wireless mice, keyboards, dictation machines). Their ability to deliver high power peaks ensures the reliable operation of sophisticated electronics.Reliable and powerful alkaline technologyThe proven alkaline-manganese technology (Zn/MnO2) of the Longlife Power series is designed for high power output. It offers superior performance in energy-intensive devices compared to standard alkaline batteries. The high-quality workmanship "Made in Germany" also ensures maximum leakage safety and thus protects your valuable professional equipment.Efficiency for professional useThe Varta Longlife Power series in foil packaging is consistently geared towards the needs of professional users. Delivery in foil-wrapped 4-packs facilitates stock-keeping and needs-based distribution to service technicians or for equipping workstations. The guaranteed Varta quality and long shelf life offer maximum planning and supply security for your company. Battery features                                                                                                                                                        Model              Varta Longlife Power 4903 / AAA               Battery type              Alkaline manganese               Rated voltage (V)              1.5               Capacity (mAh)              approx. 1300               Diameter (mm)              10.5               Height (mm)              44.5               Weight (g)              11.5        FAQs about the Varta Longlife Power LR03 batteryWhat is the difference between "Longlife Power" and "Industrial Pro"?Both lines are aimed at professional users. "Longlife Power" (formerly High Energy) is designed as a powerful all-rounder for devices with high, often fluctuating energy requirements (e.g. measuring devices, wireless mice). "Industrial Pro" is designed for maximum reliability and constant power output for OEM applications and safety-relevant devices (e.g. smoke detectors, long-term sensors).What are the advantages of the 4-pack foil packaging?The film packaging (shrink-wrap) combines four batteries into one compact and robust unit. This is ideal for adding to new devices (OEM), for equipping service kits or for quick and easy distribution to employees without having to handle loose batteries.Is this battery suitable for original equipment (OEM)?Yes, their high quality and long shelf life make them a very good choice for the initial equipment of devices that require a powerful energy source. The "Industrial Pro" series is a possible alternative for applications where guaranteed long-term stability is a priority.Can I also use these batteries in devices with low power requirements?Yes, this is possible. However, for devices with very low and constant energy requirements (e.g. remote controls, wall clocks), the batteries in the "Varta Longlife" series are the most economical choice, as they are optimised for maximum service life with low load.How should this battery be disposed of?Batteries must not be disposed of with household waste. Please dispose of used batteries at the designated collection points in shops or at municipal recycling centres to ensure environmentally friendly recycling.

The Varta Industrial Pro 4020, internationally standardised as LR20 (Mono/D), is the most powerful and highest-capacity primary battery in the Varta range for professional applications. It has been specially developed for use in energy-intensive industrial devices and long-life installations that require maximum runtime and absolute reliability. As the flagship of the Industrial Pro Series, it is the first choice for original equipment manufacturers (OEM) and commercial users whose devices require consistently high performance over a long period of time.Highlights at a glanceMaximum capacity: Developed for extremely energy-intensive devices with the highest runtime requirements.Industrial quality: Guarantees maximum reliability and constant performance for business-critical applications.OEM-optimised: The ideal battery for the initial equipment of high-quality and very long-lasting new devices.Extreme longevity: Perfect for stockpiling and for devices with long maintenance intervals.Highest leakage safety: Reliably protects expensive professional equipment from damage.Reliable energy for professional applicationsThe Varta Industrial Pro LR20 is the ultimate power source for devices with the highest energy demands. It is typically used in public and commercial sanitary facilities (e.g. fragrance dispensers, automatic flushing systems), in security technology (alarm systems, long-term radio beacons), in medical devices as well as in professional large torches (e.g. for fire brigades and security services) and in measuring instruments in continuous operation.Powerful and proven alkaline technologyThe proven alkaline manganese technology (Zn/MnO2) in the D size offers unmatched energy density and capacity for a primary battery. The Varta Industrial Pro is designed to deliver consistently high currents, optimising the lifespan and function of your devices. It offers the maximum possible performance and is designed for the most demanding continuous use, where other batteries would fail prematurely.Efficiency for professional useThe Varta Industrial Pro Series is consistently geared towards the needs of professional users. Delivery in industry-standard bulk packaging reduces waste and simplifies handling in production or during maintenance. The guaranteed Varta quality "Made in Germany" and an extremely long shelf life of 10 years offer maximum planning and supply security for your projects. Characteristics  ModelVarta Industrial Pro 4020 / LR20 Battery typeAlkaline Nominal voltage (V)1.5 IECLR20 Dimensions (Ø x L, mm)34.2 x 61.5 Weight (g)138 Alternative designationsD, Mono  FAQs about the Varta Industrial Pro LR20 batteryWhat distinguishes the "Industrial Pro" from Varta batteries from the retail sector?The "Industrial Pro" series is aimed at professional customers. The battery cell offers consistently high, tested quality for use in critical devices. The main difference lies in the packaging, which is optimised for bulk consumers and industrial processing rather than elaborate retail blisters.For what type of devices is this large battery best suited?The D (LR20) size is specially designed for devices with very high and long-lasting energy demands. This includes motorised applications, professional lighting, alarm sirens and devices in continuous operation, where battery replacement should be infrequent and planned.Is this battery suitable for initial equipment (OEM)?Yes, the Industrial Pro Series is specifically designed for this purpose. Its very long shelf life ensures that the battery still delivers full performance even after a long period in storage or in the device, minimising the risk of failure in new devices.For which temperature range is the battery designed?The Varta Industrial Pro LR20 is designed for a wide operating temperature range from -20 °C to +50 °C, ensuring reliable operation even under demanding environmental conditions.How must this battery be disposed of?Batteries must not be disposed of with household waste. Please return empty batteries to the designated collection points in shops or to municipal recycling centres to ensure environmentally friendly recycling.

The Varta V370, internationally known as SR920W, is a premium silver oxide button cell developed as a "High Drain" version especially for watches and small devices with high, short-term energy requirements. As a specialist in specialty batteries, Varta guarantees top quality and reliability. With its stable voltage of 1.55 V and an optimised capacity of 35 mAh, it delivers the powerful performance that demanding, compact devices require.Highlights at a glancePremium quality: High-quality silver oxide technology for demanding devicesHigh Drain optimised: Ideal for devices with high, short-term energy requirementsLong service life: High capacity for this compact sizeStable voltage: Constant 1.55 V for reliable function under loadTested quality: High leakage protection and reliability from VartaPrecision energy for demanding watches and devicesThe Varta V370 was developed for use in analogue and digital quartz watches that have energy-intensive additional functions such as backlighting, an alarm, or a stopwatch function. In addition, it is an excellent energy source for a variety of compact small devices such as calculators, electronic games or medical devices that require high power for short periods.Superior silver oxide technologyThe silver oxide technology of the V370 offers high energy density and a very stable voltage level. The "High Drain" (W) design is characterised by a lower internal resistance. This allows the battery to deliver higher currents for short durations without the voltage dropping significantly, ensuring the reliable function of the connected loads.Efficiency and safety for your devicesVarta batteries are subject to the strictest quality controls to ensure consistently high performance and maximum safety. The high-quality workmanship and sealing of the V370 cell provides reliable protection against leakage and thus protects your valuable devices from damage. Trust in tested quality. Features  ModelVarta V370 / SR920W TechnologySilver Oxide-Zinc (High Drain) SizeSR920W / 370 Nominal voltage (V)1.55 Capacity (mAh)approx. 38 Dimensions (Ø x H, mm)approx. 9.5 x 2.1 Weight (g)approx. 0.6 RechargeableNo  FAQs about the Varta V370 watch batteryWhat does "High Drain" mean?"High Drain" means that the battery is designed for devices with high energy requirements. It can deliver high currents for short periods, such as those needed for display lighting or a signal tone. "Low Drain" batteries (with the suffix SW), on the other hand, are optimised for devices with a very low, constant current consumption, such as simple watches.Is this battery compatible with the designation SR69W?The Varta 370 corresponds to the internationally standardised IEC designation SR920W. The designation SR69W is not standardised. Please check the number on your old battery. If it is marked 370 or SR920W, this is the correct and suitable replacement.What is the difference between a V370 (SR920W) and a V371 (SR920SW)?Both are high-quality silver oxide batteries of the same size. However, the V370 is designed as a "High Drain" version for devices with higher current consumption (e.g. watches with illumination). The V371 (SR920SW) is a "Low Drain" version specially optimised for the low, constant current consumption of simple wristwatches, where it provides maximum efficiency.How should this battery be disposed of?Watch batteries must not be disposed of with household waste. Please take the empty battery to the designated collection points in stores or at municipal recycling centres to ensure environmentally sound recycling.

The Varta V379, internationally known as SR621SW, is one of the most popular premium silver oxide button cells, which has been specially developed for the precise requirements of high-quality wristwatches. As a specialist in watch batteries, Varta guarantees the highest quality, reliability and an extremely long service life. With its stable voltage of 1.55 V and an optimised capacity of 18 mAh, it ensures maximum timekeeping accuracy and protects your valuable movement.Highlights at a glancePremium quality: High-quality silver oxide technology for watches and precision devicesExtremely stable voltage: Constant 1.55 V for maximum timekeeping accuracy and reliabilityLong service life: Optimised capacity and minimal self-discharge for years of useHigh leak-proof safety: Maximum protection for your valuable and delicate movementTested quality: Reliable energy from one of the leading manufacturersPrecision energy for high-quality watchesThe Varta V379 is a widely used power source for a variety of analogue and digital quartz watches. Its cell chemistry is optimised for low, constant power consumption, which is typical for movements without additional functions. Its compact size makes it the perfect choice for a wide range of men's and women's watches.Superior silver oxide technologyCompared to conventional alkaline batteries, the silver oxide technology of the V379 offers decisive advantages. The voltage remains stable over almost the entire service life of the battery, which ensures the precision of the device. The high energy density enables a long runtime in a very small design. Thanks to the minimal self-discharge, the battery also has an extremely long shelf life.Efficiency and safety for your movementVarta watch batteries are subject to the strictest quality controls to ensure consistently high performance and maximum safety. The high-quality workmanship and sealing of the V379 cell provide reliable protection against leakage and thus protect the sensitive movement from damage. Rely on tested quality for your valuable devices. Characteristics  ModelVarta V379 / SR621SW TechnologySilver oxide-zinc (Low Drain) SizeSR621SW / 379 Nominal voltage (V)1.55 Capacity (mAh)approx. 19 Dimensions (Ø x H, mm)approx. 6.8 x 2.1 Weight (g)approx. 0.3 RechargeableNo  FAQs about the Varta V379 watch batteryWhat does the designation SR621SW mean?The international IEC designation provides information about the battery. "S" stands for silver oxide, "R" for the round shape, "621" for the dimensions (6.8 mm x 2.15 mm) and the "SW" at the end denotes a "Low Drain" version. This is specially optimised for devices with low and constant power consumption, such as wristwatches.Is this battery compatible with the designation SR63SW?The Varta 379 corresponds to the internationally standardised IEC designation SR621SW. The designation SR63SW is not standardised. Please check the number on your old battery. If it says 379 or SR621SW, then this is the correct and suitable replacement.What is the difference to type V364?Both Varta types, V379 and V364, correspond to the same international standard SR621SW and have identical dimensions. They are fully interchangeable in practice. These are internal Varta type designations.How should this watch battery be disposed of?Watch batteries must not be disposed of with household waste. Please take the empty battery to the designated collection points in shops or municipal recycling centres to ensure environmentally responsible disposal.

The Varta V386, internationally known as SR43W, is a premium silver oxide button cell, specially developed as a "high drain" version for watches and small appliances with high, short-term energy requirements. As a specialist in special batteries, Varta guarantees the highest quality and reliability. With its stable voltage of 1.55 V and a high capacity of 120 mAh, it delivers the powerful performance that demanding electronic devices require.Highlights at a glancePremium quality: High-quality silver oxide technology for demanding devicesHigh drain optimised: Ideal for devices with high, short-term energy requirementsHigh capacity: Long service life even in devices with high consumptionStable voltage: Constant 1.55 V for reliable function under loadTested quality: High leakage safety and reliability from VartaUniversal precision energy for demanding devicesThe Varta V386 is a universal energy source for a variety of devices that require powerful and reliable performance. It is ideal for wristwatches with energy-hungry additional features such as lighting or alarms. Moreover, it is the perfect choice for calculators, digital calipers, laser pointers, toys and various medical devices.Superior silver oxide technologyThe silver oxide technology of the V386 offers high energy density and a very stable voltage situation. The "High Drain" (W) design is characterised by a lower internal resistance. This allows the battery to deliver higher currents for short periods of time without the voltage dropping significantly, ensuring the reliable function of the connected consumers.Efficiency and safety for your devicesVarta batteries are subject to strict quality controls to ensure consistently high performance and maximum safety. The high-quality workmanship and sealing of the V386 cell provide reliable protection against leakage and thus protect your valuable devices from damage. Trust in tested quality. Characteristics  ModelVarta V386 / SR43W TechnologySilver oxide-zinc (High Drain) SizeSR43W / 386 Nominal voltage (V)1.55 Capacity (mAh)approx. 120 Dimensions (Ø x H, mm)approx. 11.6 x 4.2 Weight (g)approx. 1.9 RechargeableNo  FAQs about the Varta V386 watch batteryWhat does "High Drain" mean?"High drain" means that the battery is designed for devices with high energy requirements. It can briefly supply high currents, as required, for example, for a display illumination, a signal tone or a measurement process. "Low drain" batteries (with the suffix SW) are, on the other hand, optimised for devices with a very low, constant current consumption such as simple clocks.Can I replace an LR43 alkaline battery with this V386?Yes, this is always possible and represents a significant upgrade. The V386 (SR43W) offers a longer service life and a much more stable voltage than an LR43 battery. This is particularly advantageous for measuring instruments and medical equipment to ensure high accuracy.What is the difference between a V386 (SR43W) and a V301 (SR43SW)?Both are high-quality silver oxide batteries of the same size. However, the V386 is designed as a "high drain" version for devices with higher current consumption (e.g. calculators). The V301 (SR43SW) is a "low drain" version specially optimised for the low, constant current requirements of simple wristwatches and provides maximum efficiency there.How should this battery be disposed of?Watch batteries must not be disposed of in household waste. Please take the empty battery to the designated collection points in stores or municipal recycling centres to ensure environmentally sound disposal.