The CR2335 is a type of battery known as a coin cell or button cell due to its thin, circular shape resembling a coin. This specific model, the CR2335, is named with the standard nomenclature of coin cell batteries. Here's what the alphanumeric designation means:
"CR" refers to the chemistry of the battery, in this case indicating that it's a lithium/manganese dioxide battery. Lithium-based batteries have a number of advantages compared to other chemistries, including a high energy density and low self-discharge rate, which makes them useful for devices that require long shelf-life and reliable power delivery.
The first two numbers, "23", signify the diameter of the battery in mm, which for this model is 23mm.
The last two numbers, "35", represent the height of the battery in tenths of a millimeter. Therefore, a CR2335 battery would be 3.5mm high.
As for voltage and capacity, a standard CR2335 battery will typically have a nominal (or standard) voltage of around 3V. The capacity of a CR2335 battery can vary depending on the brand and the battery's specific design, but generally it falls within a range of roughly 200-300mAh.
CR2335 Specifications
The CR2335 is a specific type of coin, lithium battery whose design and performance specifications make it suitable for various applications, particularly in compact electrical and electronic devices. Detailed specifications can vary slightly between manufacturers and production batches. However, the general specifications for a CR2335 battery include:
Chemistry: Lithium/Manganese Dioxide (Li/MnO2), which constitutes the anodic and cathodic materials in the battery. These materials are known for their capacity to store and supply relatively high energy (due to lithium's high electrochemical potential) in a compact and light structure.
Shape/Size: Coin, or button-shaped having a diameter of 23mm (hence the "23") and height of 3.5mm (conveyed by the "35"). This form factor makes it well-suited for small, portable electronics where space is a premium.
Voltage: Typically, the nominal voltage (i.e., working or standard voltage) is 3.0 Volts. This voltage is dictated by the underlying lithium/manganese dioxide chemistry.
Capacity: This can range anywhere from 200mAh to 300mAh. The capacity represents the amount of charge (or electrical energy) the battery can deliver over time, determining the operational length of the battery on a single-use basis before the battery degrades and needs replacement.
Temperature Range: CR2335 batteries normally operate reliably in a wide temperature range, often from -30°C to 60°C. This broad range makes them suitable for devices exposed to various environmental conditions.
Rechargeability: The CR2335, like all lithium coin batteries, is usually non-rechargeable or "primary." Attempting to recharge a primary lithium battery can lead to chemical instabilities, leakage, overheating, or possibly explosions.
Shelf-life: These batteries often have a shelf-life of about 10 years, thanks to the low self-discharge rate of lithium-based chemistries.
CR2335 Battery Equivalent
CR2335 is a type of lithium coin cell battery that is widely used in various small electronic devices. This battery has several equivalent models that share the same physical dimensions, voltage, and similar capacity, making them interchangeable in most devices designed for CR2335 batteries.
BR2335
Panasonic's model, with performance essentially identical to CR2335. The prefix "BR" represents the lithium/manganese dioxide system, following Panasonic's naming convention. BR2335 is an equivalent battery to CR2335, with the same physical dimensions and voltage. The main difference is that BR2335 batteries are designed to operate in a wider temperature range, making them suitable for devices exposed to more extreme conditions.
CR2325
CR2325 - Slightly lower capacity than CR2335, with a typical capacity of 165-190mAh. Apart from the capacity and thickness (2.5mm vs 3.5mm), other performance parameters are the same as CR2335. It can be interchanged in devices with lower battery capacity and size requirements.
DL2335
DL2335 is a direct equivalent to CR2335, with the same physical dimensions, voltage, and capacity. Hitachi Maxell's model, with the "DL" prefix being their naming convention. Performance is comparable to CR2335.
ECR2335 and E-CR2335
E-CR2335 and ECR2335, Murata's models identified by the prefix "E", are equivalent to and can be used as direct replacements for CR2335 batteries, as they have essentially the same electrical performance.
KCR2335 and KECR2335
KCR2335 and KECR2335, Keeper's models represented by the prefix "K", are equivalent to CR2335 batteries with the same physical dimensions, voltage, and similar capacity, while KECR2335 includes a protection circuit.
KL2335 and L2335
KL2335 (Konnoc's model) and L2335 (Leica's model) are equivalent to CR2335, with the "KL" and "L" prefixes indicating the manufacturers' lithium coin cell battery designations, and they can be used as direct replacements for CR2335 batteries.
LITH38 and LITH-38
LITH38 and LITH-38, NorthStar's models with a capacity of approximately 240mAh, are equivalent to CR2335 batteries, with the "LITH" prefix serving as an abbreviation for "lithium" and indicating the same physical dimensions, voltage, and similar capacity.
CR2335 Applications
CR2335 batteries and their equivalents are widely used in various small electronic devices due to their compact size, stable voltage, and reliable performance. Here are some common applications for CR2335 batteries:
1. Watches and Clocks
CR2335 batteries are often used in watches and clocks, especially in high-end or feature-rich models that require a stable and long-lasting power source. These batteries can provide reliable power for several years in most watches and clocks.
2. Calculators
Many calculators, particularly those with advanced features or larger displays, use CR2335 batteries as their primary power source. The battery's stable voltage ensures accurate calculations and a long lifespan.
3. Medical Devices
Some medical devices, such as glucose meters, blood pressure monitors, and digital thermometers, rely on CR2335 batteries for their portability and reliability. The battery's compact size allows for the design of small, lightweight medical devices that are easy to carry and use.
4. Remote Controls
CR2335 batteries are sometimes used in remote controls for various devices, such as televisions, air conditioners, and audio systems. The battery's stable voltage and long shelf life ensure that the remote control remains functional even after extended periods of inactivity.
5. Digital Cameras
Although less common in modern digital cameras, some older or specialized models may use CR2335 batteries to power their electronic components, such as the LCD screen or flash.
6. Toys and Games
Some electronic toys and games, particularly those with small form factors or simple designs, may use CR2335 batteries as their power source. The battery's stable voltage and reliable performance ensure that the toy or game functions properly during use.
7. Flashlights and Laser Pointers
Compact flashlights, especially those designed for emergency kits or keychains, may use CR2335 batteries due to their small size and reliable power output. Some laser pointers use CR2335 batteries to power their laser diodes, as the battery's stable voltage and compact size make it well-suited for this application.
CR2335 Manufacturer
While Panasonic is a well-known manufacturer of various electronic products, including batteries, it is important to note that CR2335 is a standardized coin cell battery designation, and multiple manufacturers produce batteries that adhere to this standard. This standardization ensures consistency in size, voltage, and performance among CR2335 batteries from different manufacturers, allowing for interchangeability in devices designed to use this battery type. As a result, CR2335 batteries are not exclusive to Panasonic, and equivalent products can be found from other reputable battery manufacturers such as Energizer, Duracell, Sony, Maxell, Renata, Varta, GP Batteries, EVE Energy, and Murata.
Are CR2335 batteries rechargeable?
No, CR2335 batteries are not rechargeable. They are primary lithium manganese dioxide coin cell batteries designed for single use. Once depleted, they should be properly disposed of and replaced with a new battery.
Rechargeable CR2335 lithium coin cell batteries have different designations, such as:
ML (Lithium Manganese), LIR (Lithium-Ion Rechargeable), VL (Vanadium Lithium)
BR2335 vs CR2335 vs CR2032 Battery
| Feature | BR2335 | CR2335 | CR2032 |
|---|
| Chemistry | Lithium Manganese (LiMnO2) | Lithium Manganese (LiMnO2) | Lithium Manganese (LiMnO2) |
| Diameter | 23 mm | 23 mm | 20 mm |
| Height | 3.5 mm | 3.5 mm | 20 mm |
| Nominal Voltage | 3 V | 3 V | 3 V |
| Nominal Voltage | 500-1000 mAh | 265-270 mAh | 225-240 mAh |
| Rechargeable | No | No | No |
Compared to CR2335, BR2335 battery has the same size and nominal voltage. But BR2335 battery has higher capacity of 500-1000 mAh, CR2335 has lower capacity of 265-270 mAh.
The CR2335 and CR2032 are both lithium-manganese dioxide coin cell batteries, commonly used in small electronic devices such as watches, calculators, and key fobs. The difference lies in their dimensions and capacity: the CR2335, with a 23mm diameter and 3.5mm height, generally has a higher load capacity due to its larger size, potentially providing a longer lifespan in certain devices. Conversely, the smaller, but more common, CR2032 (20mm diameter, 3.2mm height) is widely used in many everyday devices. Despite these differences, both batteries deliver a standard voltage of about 3 volts.
Frequently Asked Questions
How long does a CR2335 battery generally last?
The lifespan of a CR2335 battery varies depending on the application it's used in. For low-drain devices like watches, calculators, or remote key fobs, this type of battery can typically last between 3 to 5 years. Some factors that can affect a battery's lifespan include the power requirements of the device, the operating environment, and how often the device is used.
2. What devices use a CR2335 battery?
The CR2335 battery is a type of lithium coin cell battery that is commonly used in a wide range of small, portable electronic devices. This includes wristwatches, calculators, garage door openers, car key fobs, digital thermometers, heart rate monitors, glucometers, small digital clocks, and some computer hardware where it serves as a backup power source to keep the time or other settings when the main power is off.
3. What is the difference between CR2335 and BR2335 batteries?
Both CR2335 and BR2335 batteries have the same physical dimensions and voltage but they differ in the type of lithium used in their construction, which affects their performance at different temperatures. The 'C' in CR2335 means the battery is made with lithium manganese dioxide (Li-MnO2), and it performs well in normal to high-temperature conditions. Meanwhile, the 'B' in BR2335 stands for lithium carbon monofluoride (Li-(CF)n) and this chemistry enables the battery to perform better in low-temperature conditions.