Energizer CR1632 Batteries

Energizer CR1632 Lithium Coin Battery

A compact, high-capacity 3 V coin cell for key fobs, wearables, sensors, and small remotes that require the 16 mm diameter with 3.2 mm height.

Key Specs

Code	CR1632 (IEC)
Chemistry	Lithium manganese dioxide (Li‑MnO2), primary (non‑rechargeable)
Voltage	3 V nominal
Size	16 mm diameter × 3.2 mm height
Typical capacity	Approximately 120–140 mAh (varies by load and cutoff)
Operating temp	Commonly −20 °C to +60 °C (check device limits)
Common equivalents	DL1632, ECR1632 (manufacturer-specific codes)

When to Choose CR1632

• Use if your device or old battery is marked CR1632.
• Choose CR1632 over CR1616 or CR1620 when your device needs more capacity without changing diameter.
• Avoid CR1632 if the battery door specifies CR1616, CR1620, CR2032, or another size—mismatches can cause poor contact or damage.

Typical Applications

• Automotive key fobs and smart remotes
• Bike speed/cadence sensors and heart-rate straps
• Garage door remotes and handheld RF controls
• Watches, medical and fitness wearables, compact trackers
• Small LED accessories and tags

CR1632 vs. Nearby Sizes

Model	Diameter	Height	Notes
CR1616	16 mm	1.6 mm	Very thin; less capacity
CR1620	16 mm	2.0 mm	Thin; moderate capacity
CR1632	16 mm	3.2 mm	Highest capacity in 16 mm family
CR2032	20 mm	3.2 mm	Larger diameter; not interchangeable

Match both diameter and height. Using a thinner cell can cause intermittent power; a thicker or larger one may not fit or can stress seals and springs.

Quick Install (2–5 minutes)

1. Confirm the size code on the device/battery door: CR1632.
2. Open the compartment carefully and note polarity. The large flat face is +.
3. Wipe contacts with a dry, lint-free cloth; avoid touching the faces.
4. Insert the new cell with + aligned to the + mark; close the door without forcing.
5. Test immediately (e.g., lock/unlock from several feet; verify watch functions/pairing).

Real-World Runtime

• Key fobs: often 6–18 months depending on usage, temperature, and transmit power.
• Bike/fitness sensors: typically a few months to 1 year based on logging interval and environment.
• Watches/low-drain memory: commonly 1–3 years, shorter with alarms or backlights.

Track your own pattern: write the install month on the package or in a notes app.

Safety and Handling

• Ingestion hazard: keep new and used coin cells away from children and pets; choose child-resistant packaging when available.
• Do not recharge, heat, short, or puncture.
• Store sealed at room temperature in a dry, dark place; avoid loose carrying with metal objects.
• Tape used cells or place back in packaging before disposal; follow local recycling guidance.

Troubleshooting

• New battery, no power: recheck polarity, reseat the cell, and inspect contacts for damage or debris.
• Weak range on remotes: confirm the case fully snaps shut and test away from interference; reseat if needed.
• Intermittent resets: verify you are using CR1632 (3.2 mm). Thinner cells can lose contact.

FAQ

Is CR1632 rechargeable?

No. It is a primary lithium cell and must not be recharged.

What are common equivalent codes?

CR1632 is the IEC code. Equivalent manufacturer codes include DL1632 and ECR1632.

Can I use CR1616, CR1620, or CR2032 instead?

No, unless your manual explicitly allows it. These differ in thickness or diameter and can cause poor contact or damage.

How should I store spares?

Keep them sealed in their blister at room temperature, dry and out of direct sunlight, and out of reach of children.

Which side is positive?

The large, flat face is the positive (+) side. Match the + symbol in the battery compartment.