Lithium cr1620 Battery- Datasheet, Equivalent, and Applications

CR1620 battery is a lithium non-rechargeable button/coin cell battery, often used in car keys, digital watches, remote controllers, credit-card size devices, micro-LED flashlights, toys, as CMOS/motherboard battery, and similar.

CR1620 battery is manufactured by practically all of the most popular and reputable battery brands and finding the new one should not be a problem.

• Lightweight, High Voltage, and High Energy Density

The battery voltage is 3V, almost double that of normal alkaline or manganese batteries. This means that the number of batteries required for equipment can be halved for maximum space-saving and weight reduction.

• Excellent Discharge Characteristics

Voltage characteristics remain stable even for a long period of discharge, greatly improving the reliability of equipment that uses the battery. Such equipment is also maintenance-free (battery replacement is seldom required).

• Excellent Leakage Resistance

The newly developed battery construction and electrolyte ensure maximum leakage resistance over a long span of time.

• Excellent Long-Term Reliability

Carefully selected active materials are used for the active material as well as for the electrolyte. These materials are sealed by Murata's innovative technology to minimize battery self-discharge. The annual self-discharge rate at room temperature and normal humidity is less than 1% of the nominal capacity.

• UL Approved Parts

Murata's Coin Manganese Dioxide Lithium Batteries are approved by UL. (UL1642 File No. MH12566)

• RoHS  Directive / European Directives

This product does not contain Mercury(Hg), Cadmium(Cd), nor Lead(Pb), and conforms to EC regulation values. (Directive 2006/66/EC, 2013/56/EU)

The battery pack is excluded from the RoHS directive (DIRECTIVE 2011/65/EU OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 8 June 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment).

Watches, computer motherboards, calculators, PDAs, electronic organizers, garage door openers, toys, games, door chimes, pet collars, LED lights, sporting goods, pedometers, calorie counters, stopwatches, and medical devices.

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Murata Manufacturing Co., Ltd. is a Japanese manufacturer of electronic components, based in Nagaokakyo, Kyoto. Murata has a variety of electronic products ranging from communication and wireless modules to power supplies. The company is also famous for manufacturing lumped components and RF filters based on different processing technologies like thin-film, thick-film, and LTCC (Low-Temperature Co-fired Ceramics). 

CR1616 vs CR1620 Battery

CR1616 and CR1620 are both non-rechargeable manganese-dioxide lithium batteries that have the same diameter of 16.0 mm, but they differ in height and thus the capacity and other features like drain currents and similar:

- CR1616 battery: 16.0 x 1.6 mm, 50-55 mAh,

- CR1620 battery: 16.0 x 2.0 mm, 65-80 mAh.

While most battery compartments that can accept a CR1620 battery can also accept a CR1616 battery, it is not recommended to replace a CR1620 battery with a CR1616 battery due to the lower capacity and somewhat lower maximum drain/pulse currents that can cause the device to malfunction.

BR1620 vs LiR1620 vs ML1620 vs CR1620 Battery

BR1620, LiR1620, and ML1620 batteries are very rare batteries and are not commonly used in everyday situations.

BR1620 battery is a non-rechargeable carbon-monofluoride lithium battery, it features somewhat lower capacity and lower drain current than the CR1620 battery, but it has a very low discharge rate and wider temperature range. The nominal voltage of the BR1620 battery is 2.8-3.0 volts and the cutoff voltage is 2.0-2.25 volts, depending on the exact chemistry.

LiR1620 battery is a rechargeable lithium battery, featuring lower capacity than the CR1620 battery, but can be recharged many times. Also, its nominal voltage is 3.6-3.7 volts and not all devices designed for the CR1620 battery support the use of the LiR1620 battery. The self-discharge rate of the LiR1620 battery is up to 5% per month.

ML1620 battery is a rechargeable lithium manganese-dioxide battery, with a nominal voltage of 3.0 volts and can be used instead of a CR1620 battery. However, it is used rarely due to the lower capacity, stronger self-discharge rate, etc.

Like all similar small and shiny objects (another button/coin cell batteries included), CR1620 batteries can be swallowed by kids and pets - that is why these batteries come in so-called 'pets-safe' and 'kids-safe' packages.

Although CR1620 batteries don't contain mercury, cadmium, lead, or any other toxic heavy metals and similar pollutants, they are very dangerous when swallowed - if swallowed, they can cause chemical burns and physical damage to internal organs.

If CR1620 batteries (or any similar battery) get swallowed, immediately contact the nearest emergency center (or doctor), explain what happened, and act according to their instructions.