Energizer CR1616 Batteries

Energizer CR1616 at a Glance

The Energizer CR1616 is a primary (non-rechargeable) 3 V lithium coin cell designed for very slim battery compartments. Choose it when your device or manual specifies CR1616; the 1.6 mm height is critical for proper contact and door sealing in compact electronics.

Key Specs

Where It Fits

• Automotive key fobs and car remotes
• Sport and dress watches with ultra-thin cases
• Fitness and medical sensors (e.g., chest straps, thermometers)
• Calculators, bike computers, and small remotes

CR1616 vs. CR1620 vs. CR1632

These cells share the same 16 mm diameter but differ in thickness and capacity. Match your device’s code exactly unless the manufacturer says otherwise.

• Use CR1616 if your battery door or spring contacts are tuned for 1.6 mm height.
• Avoid substituting thicker cells (CR1620/CR1632); they may not fit or can damage the door.
• Avoid thinner or stacked cells; poor contact can cause intermittent power.

Installation: Quick, Clean Replacement

1. Confirm the code on the old cell or device (CR1616).
2. Work on a clean, dry surface; wipe contacts with a dry, lint-free cloth.
3. Observe polarity: install with the large flat “+” face matching the device’s marking.
4. Seat the cell flat without bending tabs or forcing the door.
5. Test immediately: lock/unlock for key fobs, time/alarm for watches, and pairing for sensors.

Expected Runtime (Typical Ranges)

• Key fobs and compact remotes: about 6–18 months depending on use and range.
• Sport/dress watches: about 6–24 months depending on alarms, backlight, and features.
• Fitness/medical sensors: about 3–12 months depending on broadcast frequency and temperature.
• Calculators and memory keepers: often 1–2 years with light use.

Note your install date and track real-world life in your device for accurate planning.

Safety and Storage

• Keep coin cells away from children and pets; ingestion is a medical emergency. Seek immediate care if swallowed.
• Do not recharge, crush, or heat. CR1616 is non-rechargeable.
• Avoid short circuits; keep spares in sealed packaging—don’t carry loose with coins or keys.
• Store sealed, dry, and at room temperature; avoid high heat and humidity.
• Tape used cells’ terminals before disposal and follow local recycling guidance.

Compatibility and Buying Tips

• Use the exact code: CR1616 (IEC). Some brands may show ECR1616; it denotes the same fit.
• Do not mix different chemistries or old and new cells in one device.
• BR1616 (carbon-monofluoride) variants exist; they fit but behave differently at low current/temperature—follow device guidance.
• Buy sealed, clearly marked Energizer packs and check date/lot codes for freshness.

Troubleshooting

• New battery, device still dead: recheck polarity, reseat the cell, and ensure contacts aren’t bent or contaminated.
• Poor key fob range: confirm the case is fully closed and test away from the vehicle; RF interference and mis-seated cells reduce range.
• Intermittent resets: verify the door isn’t preloading contacts. Using the correct 1.6 mm height prevents intermittent contact.
• Battery warming: remove immediately; inspect for shorts or damaged contacts.

FAQ

Is CR1616 rechargeable?

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

Can I use CR1620 or CR1632 instead?

No, unless your device explicitly allows it. They are thicker and can damage the door or fail to fit.

How do I know the correct polarity?

The large flat face is positive (+). Match the + symbol on your device’s battery door or tray.

How long does a CR1616 last?

It varies by device and usage. Expect months to a couple of years in low-drain devices; high-transmit remotes will be shorter.

What’s the best way to store spares?

Keep them sealed in the original blister at room temperature, dry, and out of reach of children.