What is the difference between CR2025 and CR2032?

Both batteries share the same 20.0 mm diameter and 3.0V voltage. The difference is thickness: CR2025 is 2.5 mm thick (~165 mAh), while CR2032 is 3.2 mm thick (~225 mAh). CR2032 cannot fit in tight CR2025 key fob slots.

Which cars use CR2025 batteries in Singapore?

CR2025 is commonly used in Mercedes-Benz smart keys (C-Class, E-Class, GLA, GLC, CLA), Volkswagen fobs (Golf Mk7, Passat, Tiguan), Audi key remotes (A3, A4, Q3, Q5), and Nissan Intelligent Keys (Qashqai, X-Trail).

Is DL2025 the same as CR2025?

Yes. DL2025 is Duracell's proprietary branding for the standard IEC CR2025 coin cell. They are 100% interchangeable and have the exact same dimensions (20mm x 2.5mm) and 3V voltage.

Can I use aluminum foil to make a CR2016 fit in a CR2025 slot?

No. DIY foil spacers can shift inside key fobs during motion, causing short circuits between the positive casing and negative terminal, which can permanently damage vehicle remote circuitry.

Where can I buy CR2025 batteries in Singapore with fast delivery?

You can buy factory-sealed Panasonic and GP CR2025 batteries online from DigiStoreSG with free local Singapore shipping dispatched from local stock.

CR2025 Battery Singapore Guide: Sizes, Equivalents, Car Key Fobs & Where to Buy

September 30, 2026

CR2025 3V Lithium Coin Cell Battery Guide: Car Key Fob Replacement, 20.0mm x 2.5mm Dimensions & Equivalents

Quick Answer What is a CR2025 Battery and What Uses It?

The CR2025 is a standard 3.0-volt lithium coin cell battery measuring 20.0 mm in diameter and 2.5 mm in thickness, providing roughly 160–170 mAh of capacity. It is specifically designed for slim electronic housings that cannot accommodate the thicker 3.2 mm CR2032.

Common Automotive Uses in Singapore: Mercedes-Benz smart keys (C/E-Class, GLA, GLC), Volkswagen fobs (Golf Mk7, Passat, Tiguan), Audi keys (A3, A4, Q3, Q5), and Nissan Intelligent Keys.
Common Household Uses: Bose audio remotes, older Apple TV remotes, digital clinical thermometers, kitchen scales, and fitness trackers.
Equivalents & Direct Replacements: DL2025 (Duracell), ECR2025 (Energizer), GPCR2025, KCR2025, BR2025, 5003LC, and SB-T14.

📍 Singapore Stock & Delivery: Genuine Panasonic & GP CR2025 in stock with Free Local Delivery.

Order Panasonic CR2025 (Free SG Delivery) →

If your car dashboard flashes a "Key Battery Low" warning on your Mercedes, Volkswagen, or Audi, or your kitchen scale suddenly goes blank, there is a very high chance you need a CR2025 battery. While it shares the same 20 mm circular diameter as the ubiquitous CR2032, that 0.7 mm thickness gap makes all the difference. Below is our complete Singapore engineering breakdown of CR2025 specs, car key compatibility, cross-reference codes, and where to buy fresh cells locally.

1. Decoding the CR2025 Code & Technical Specifications IEC Standard

Under the International Electrotechnical Commission (IEC) standard, every coin cell number describes its chemical composition and precise physical measurements:

Chemistry (C)

Lithium Manganese Dioxide (Li/MnO2), supplying a stable 3.0V nominal discharge curve.

Diameter (20)

Exactly 20.0 mm diameter across the circular casing.

Thickness (25)

Exactly 2.5 mm height (25 tenths of a millimetre).

Nominal Voltage	3.0 Volts (fresh cell tests ~3.2V–3.3V unloaded)
Nominal Capacity	~160 to 170 mAh (Panasonic / Energizer / GP)
Dimensions	20.0 mm diameter × 2.5 mm thickness
Operating Temperature	-30°C to +60°C (ideal for hot car interiors in SG)
Typical Shelf Life	Up to 10 years (<1% self-discharge per year)

2. Car Key Fob Compatibility: Which Cars in Singapore Use CR2025?

In Singapore, car key fob battery replacement is the single most common reason people search for CR2025 batteries. Several major European and Japanese car manufacturers design their remotes around the slim 2.5 mm profile:

🇩🇪 Mercedes-Benz

C-Class (W205, W204)
E-Class (W212, W213)
A-Class, CLA, GLA, GLC
Triangular chrome-sided smart keys commonly take 1 or 2 CR2025 cells.

🇩🇪 Volkswagen & Audi

Volkswagen: Golf Mk7, Passat, Tiguan, Polo flip keys.
Audi: A3, A4, A6, Q3, Q5 smart remotes.
Both share VAG key fob designs built for 2.5 mm coin slots.

🇯🇵 Nissan & Mazda

Nissan: Qashqai, X-Trail, Note, Sylphy Intelligent Keys.
Mazda: Slim credit-card style backup smart remotes.
Subaru: Selected older remote fobs.

Pro Tip: For step-by-step instructions on popping open your car remote casing without scratching the plastic, consult our detailed Car Key Fob Battery Replacement Guide.

3. CR2025 Equivalent Codes & Brand Cross-Reference

Different battery manufacturers often brand identical coin cells with proprietary model prefixes. Any cell stamped with the following codes is a direct 100% equivalent to CR2025:

Brand / Standard	Model Code	Interchangeable?
IEC Standard	CR2025	✓ Industry Baseline
Duracell	DL2025	✓ 100% Identical
Energizer / Eveready	ECR2025	✓ 100% Identical
GP Batteries	GPCR2025	✓ 100% Identical
Other Codes	KCR2025, BR2025, 5003LC, SB-T14	✓ 100% Identical

4. The 0.7mm Difference: Can You Swap CR2025 and CR2032?

Because all three batteries in the 20 mm family (CR2016, CR2025, CR2032) share the same 20.0 mm diameter and 3.0V output, many people wonder whether they can be swapped:

⚠️ Can you put a CR2032 into a CR2025 slot?

Usually No. The CR2032 is 3.2 mm thick—which is 0.7 mm thicker than a CR2025. In precision-engineered car key fobs or slim remotes, forcing a CR2032 will crack the plastic housing, crush delicate surface-mount PCB pins, or prevent the rubber moisture-sealing gasket from seating properly.

⚠️ Can you put a CR2016 or CR2025 into a CR2032 slot?

Not Recommended. While a thinner battery will physically enter the slot, the 0.7 mm air gap means the spring clip will not apply adequate pressure. The battery will rattle and cause intermittent power loss whenever you press key fob buttons. Read our full CR2032 vs CR2025 Deep Dive for technical testing data.

🚚 Free Singapore Shipping Included

Where to Buy Genuine CR2025 Batteries in Singapore?

Avoid convenience store and supermarket markups ($5–$7 for a single blister). DigiStoreSG delivers factory-sealed, fresh Panasonic and GP CR2025 3V lithium batteries dispatched directly from Singapore stock with Free Local Delivery.

Order Panasonic CR2025 →

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