Renata CR1616 3V Lithium Coin Battery

The Renata CR1616 is a primary (non‑rechargeable) lithium coin cell for compact devices that need a slim 1.6 mm profile and stable 3 V output. It fits applications such as car key fobs, digital thermometers, small remotes, bike computers, and certain fitness sensors.

At a Glance

• Size: 16.0 mm diameter x 1.6 mm height (CR1616 standard)
• Voltage: 3 V nominal (Lithium Manganese Dioxide, Li‑MnO₂)
• Typical capacity: 50–55 mAh
• Shelf life: up to 10 years when stored at room temperature
• Operating range: about -22°F to 140°F (-30°C to +60°C)
• Compliance: Mercury‑free; RoHS compliant

When to Choose CR1616

• Your device specifically calls for CR1616 (check the manual or the old cell).
• The battery compartment is very thin and cannot accept thicker cells.
• Use cases are low‑to‑moderate drain with occasional pulse loads (e.g., key fob transmissions).

When to Avoid

• The device specifies a different size (e.g., CR1620 or CR1632) or needs higher capacity.
• Continuous high‑drain applications (generally more than a few milliamps).
• Devices requiring rechargeable cells—do not substitute rechargeable lithium coin types (e.g., LIR1616), which have different voltage and charging requirements.

Common Applications

• Car key fobs and keyless entry remotes
• Digital thermometers and small medical devices (check manufacturer guidance)
• Bike computers and fitness sensors
• Compact remote controls, calculators, and small toys

Runtime Expectations

• Key fobs: typically 1–3 years depending on usage, signal strength, and temperature.
• Digital thermometers or small remotes: roughly 6–18 months with light, intermittent use.
• Always confirm actual performance in your device; standby current, transmission power, and temperature have a large impact.

Compatibility and Cross‑Reference

Equivalent designations you may see on packaging:

• IEC: CR1616
• Other brand codes: DL1616 (Duracell), ECR1616 (Energizer), KCR1616 (various)

Not the same as: BR1616 (different chemistry for high‑temperature stability and long backup use), LIR1616/ML1616 (rechargeable types with different voltage). Use only what your device specifies.

CR1616 vs Nearby Sizes

• CR1620: Same diameter (16 mm) but thicker (2.0 mm) with higher capacity (~70–80 mAh). Will not fit if the compartment requires 1.6 mm thickness.
• CR1632: Same diameter, much thicker (3.2 mm) with significantly more capacity (~120 mAh). Only use if explicitly specified by the device.

Installation Tips

1. Confirm the required size: CR1616.
2. Power off the device and open the battery door carefully.
3. Observe polarity: the + (flat) side typically faces up. Match the +/− markings in the holder.
4. Handle with non‑metal tweezers or clean, dry hands; avoid touching both sides at once.
5. Clean contacts if tarnished (isopropyl alcohol on a lint‑free swab), let dry, then insert.
6. Close the compartment securely and test the device.

Safety and Disposal

• Keep coin cells away from children and pets—ingestion is a medical emergency. If swallowed, seek immediate help.
• Do not recharge, short‑circuit, crush, or expose to fire.
• Store in original packaging at room temperature; avoid heat and moisture.
• Tape battery terminals before disposal and recycle at a battery collection point where available.

FAQ

Can I use a CR1620 instead of a CR1616?

No. Although the diameter is the same, the CR1620 is thicker (2.0 mm) and usually won’t fit. Use only the size specified by your device.

Is CR1616 rechargeable?

No. CR1616 is a primary lithium cell and must not be recharged. Rechargeable look‑alikes (e.g., LIR1616) have different voltage and charging needs and can damage devices not designed for them.

What’s the difference between CR1616 and BR1616?

BR1616 uses a different lithium chemistry designed for high‑temperature stability and very low self‑discharge in backup roles. CR1616 generally offers better pulse performance. Follow the device manufacturer’s recommendation.

How do I know the battery is low?

Common signs include reduced remote range, dim or intermittent display, or devices resetting. Measure under a small load for a more accurate check or replace on schedule.