Difference Between Cr And Dl Batteries
Check the code and voltage printed on the cell first, because physical size and voltage decide fit and safety more than brand. A common mistake is assuming CR and DL are different chemistries, when DL is usually Duracell’s label for the same CR-series lithium coin cells. Match the numeric size, for example 2032, and the 3V rating before inserting.
CR and DL batteries: CR is the IEC code for lithium coin cells with a nominal 3V, while DL is Duracell’s brand code for the same sizes; for example CR2032 and DL2032 are physically identical and typically provide about 200 mAh, though exact capacity varies by brand and load.
Label meanings (CR vs DL)
CR is the IEC prefix used for the standard lithium coin cell family and the letters encode chemistry and form factor, while DL is Duracell’s brand or part-code prefix for the same numeric cells. The numeric portion, for example 2032, identifies the cell diameter and thickness, so a CR2032 and a DL2032 are the same size and intended to be interchangeable with respect to physical fit.
CR is an international manufacturer-independent code that tells you the cell family and usual chemistry, plus the numeric size code. The numbers typically indicate diameter in millimeters followed by thickness in tenths of a millimeter, so 2032 is roughly 20.0 mm by 3.2 mm.
DL is simply Duracell’s labeling convention; DL followed by the same numeric sequence identifies Duracell’s version of that IEC-specified cell. Duracell may print DL on its packaging and the cell wrapper, but the cell will still meet the dimensional standard implied by the numeric code.
For example, CR2032 equals DL2032 in physical size and intended applications, and the same applies to other common coin cells such as CR2025 = DL2025 and CR1632 = DL1632. Brand codes do not change the device-side fit, but they can matter for warranty, shelf life, and perceived quality.
Chemistry and voltage
CR coin cells are lithium‑manganese dioxide cells with a nominal voltage of about 3 volts and they are primary, nonrechargeable batteries. Cells with the DL prefix that share the same numeric code almost always use the same Li‑MnO2 chemistry and the same nominal voltage, while other prefixes such as BR and LIR indicate different chemistries and different rechargeability and voltage behavior.
Li‑MnO2 chemistry gives stable voltage under low drain, long shelf life, and good energy density for small, thin cells. Temperature affects usable capacity and voltage under load, colder conditions reduce available current and effective capacity, while higher temperatures can slightly raise initial voltage but shorten shelf life.
| Prefix | Chemistry | Nominal voltage | Rechargeable? |
|---|---|---|---|
| CR | Lithium-manganese dioxide (Li-MnO2) | ≈3.0 V | No |
| BR | Lithium-carbon monofluoride (Li-CFx), or related Li primary chemistry | ≈3.0 V (slightly different voltage under load) | No |
| LIR | Lithium-ion rechargeable (thin cell format) | ≈3.6 – 3.7 V | Yes |
Sizes and form factors
CR is the industry cell code used for certain lithium primary batteries, normally followed by numbers that show diameter and thickness for coin cells, while DL is Duracell’s brand prefix for the same sizes (for example, DL2032 corresponds to CR2032). Coin cells are specified as diameter × thickness in millimeters, so the numeric part matters: a 2032 is 20 mm across and 3.2 mm thick, a 2025 is 20 mm × 2.5 mm, and so on.
Exact diameter and thickness matter because battery holders, spring contacts, and sealing gaskets are made to tight tolerances; a battery that is even 0.5 mm thicker can jam the compartment or fail to make contact. Mismatched form factors can cause intermittent power, shorting if the cell shifts, or mechanical stress that damages the device.
| Cell name (IEC / common) | Duracell label example | Size (diameter × thickness or length) | Chemistry | Typical uses |
|---|---|---|---|---|
| CR2032 | DL2032 | 20 mm × 3.2 mm | Lithium (primary) | Watches, key fobs, motherboards, small sensors |
| CR2025 | DL2025 | 20 mm × 2.5 mm | Lithium (primary) | Remote controls, slim devices where thickness is limited |
| CR2016 | DL2016 | 20 mm × 1.6 mm | Lithium (primary) | Calculators, some watches, compact sensors |
| CR1632 | DL1632 | 16 mm × 3.2 mm | Lithium (primary) | Keyless remotes, small electronics |
| CR1225 | DL1225 | 12.5 mm × 2.5 mm | Lithium (primary) | Very small remotes, medical devices, toys |
| CR123A (cylindrical) | DL123A | 17 mm diameter × 34.5 mm length | Lithium (primary) | Flashlights, security cameras, some cameras |
| CR2 (cylindrical) | DLCR2 | ~15.6 mm diameter × ~27 mm length | Lithium (primary) | Camera flashes, specialty equipment |
DL is a brand prefix, it does not indicate a different form factor or a different size standard; a DL2032 has the same nominal dimensions as a CR2032. However, confirm the stamped code on the cell and the device’s manual before replacing, because different thicknesses with the same diameter are common and not interchangeable by fit.
For example, a device that accepts a CR2025 may be recessed or use a spring contact sized for that thickness; installing a thicker CR2032 can prevent the lid from closing or bend the contacts, while putting a thinner cell in a holder can lose contact under vibration.
Capacity, wattage, runtime
CR coin cells are lithium manganese dioxide cells that list a nominal voltage (usually 3 volts) and a capacity in milliamp-hours, while DL is Duracell’s product code that often labels the same physical size and chemistry as a corresponding CR part, so voltage and mAh on the label determine energy and runtime. To compare runtime between a CR and a DL of the same size, convert mAh and voltage to watt-hours, then divide by the device load, and expect the usable energy to be lower under heavy load or cold conditions.
Read mAh on the battery package, it is milliamp-hours. Convert to watt-hours using Wh = (mAh / 1000) × V, where V is the cell’s nominal voltage printed on the cell.
For example, if a coin cell label says 220 mAh at 3 V, the energy is (220 / 1000) × 3 = 0.66 Wh. Use that Wh number against your device power draw to estimate runtime.
Safety note: Never attempt to recharge primary (non-rechargeable) CR or DL cells, and avoid shorting them. When comparing CR versus DL for a device, pick the cell whose label voltage and mAh meet the device requirements, and expect the DL brand to match the CR spec only when the package lists the same chemistry and ratings.
Compatibility and device fit
CR is the standard type code for primary lithium manganese dioxide coin cells (for example CR2032, CR2025), while DL is Duracell’s brand or catalog prefix for the same physical sizes and chemistry, so a DL2032 usually matches a CR2032 electrically and dimensionally. Always verify the size, voltage, and chemistry printed on the battery or device before swapping cells, because label prefixes do not change the cell’s rated voltage or discharge behavior.
Common device uses for CR-sized cells include small low-drain electronics where compact size and long shelf life matter. These are typically 3 volt primary cells and appear in watches, key fobs, car remote transmitters, small LED lights, glucose meters, computer motherboard CMOS backup, and some toys or fitness trackers.
| Cell size | Typical label examples | Common uses |
|---|---|---|
| CR2032 / DL2032 | ~20 mm diameter, 3.2 mm thick | Key fobs, watches, calculators, CMOS backup |
| CR2025 / DL2025 | ~20 mm diameter, 2.5 mm thick | Remote controls, small sensors, LED indicators |
| CR1632 / DL1632 | ~16 mm diameter, 3.2 mm thick | Watches, small remotes, fitness sensors |
For example, replacing a labeled LIR2032 rechargeable with a CR2032 primary will give a higher nominal voltage and may damage the device or prevent charging. Also, swapping a CR cell for an alkaline coin cell (LR prefix) is unsafe because the voltage and discharge curves differ and the physical fit markings may not match.
Strong warning: do not mix different chemistries or new and used coin cells in the same device, and always confirm device documentation when the device affects safety, medical readings, or vehicle security functions.
Practical next steps: check the battery compartment and user manual for the exact model code, match CR vs DL numbers, and if unsure, take the old cell to a store or contact the device maker to confirm acceptable substitutes.
Safety, storage, disposal
CR is the IEC designation for lithium manganese dioxide coin cells, so the “CR” prefix tells you the chemistry and standard size. DL is a Duracell product prefix that often maps to the same physical sizes, but it is a brand label rather than a chemistry code, so safety depends on the actual chemistry printed on the cell, not the DL name.
Coin cells, whether marked CR or DL, present two main acute hazards: ingestion and thermal events. If a coin cell is swallowed it can lodge in the throat and cause severe internal burns quickly, and lithium-type coin cells can short and heat very rapidly if the terminals touch a conductive surface.
Buying, testing, troubleshooting
CR is the IEC size and chemistry code for lithium manganese dioxide coin cells (CR2032, CR2025 and similar), while DL is Duracell’s brand part prefix that usually maps to those same sizes and chemistry, not a different cell type. Always confirm the printed model number, nominal voltage, and dimensions on the package because the DL label is a brand designation and may be paired with equivalent CR numbers or alternative chemistries in rare cases.
| Label | What it means | Typical chemistry | Common uses |
|---|---|---|---|
| CR (example CR2032) | IEC code for coin-cell size and chemistry | Lithium manganese dioxide (nominal ~3 V) | Watches, key fobs, small sensors |
| DL (example DL2032) | Duracell brand part number that usually equals the same CR size | Often the same lithium chemistry when matching a CR number | Same small electronics, sold under Duracell branding |
For example, a DL2032 will usually fit and behave like a CR2032, but a DL2025 would be thinner and may not click into the holder or may have less capacity. Always compare the numeric model and physical thickness before relying on a brand label alone.
Safety note: never short coin cells, discard any cell that gets hot, swollen, or leaks, and do not mix chemistries or old and new cells in the same device. When in doubt, replace with a genuine, labeled cell that matches the device specifications.
Quick Summary
The main difference between CR and DL batteries is their specific design and compatibility, affecting their use in devices.
Frequently Asked Questions
What is the main difference between CR and DL batteries?
The primary difference is that CR batteries are made by various manufacturers, while DL batteries are specifically made by Duracell. This means that while they are functionally similar, their quality and performance can vary based on the brand.
Are CR and DL batteries interchangeable?
Yes, CR and DL batteries are generally interchangeable, as both types have the same dimensions and voltage of 3 volts. However, it is always best to check the manufacturer’s specifications for the device you are using to ensure optimal performance.
Do CR and DL batteries have the same shelf life?
While both types can have a shelf life of up to 10 years, the actual shelf life can vary based on the brand and storage conditions. It’s advisable to check the expiration date on the package for accurate information.
Can using a DL battery in a device designed for CR batteries cause any issues?
In most cases, using a DL battery in a device designed for CR batteries shouldn’t cause any issues, as they are electrically compatible. Nonetheless, you may want to confirm that your device can handle the specific chemistry of the battery you are using.
What mistakes should I avoid when buying CR or DL batteries?
One common mistake is assuming all batteries are the same; always check the specific model and brand recommended for your device. Additionally, be wary of purchasing batteries that are close to their expiration dates, as this can impact performance.
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