Panasonic CR2 Lithium Battery

The CR2 is a 3V lithium cell, and this listing brings you one of them from Panasonic. It is a short cylindrical cell with a flat positive terminal, and it is not interchangeable with the common alkaline sizes. Lithium chemistry gives it its character: a steady 3V from one cell where an alkaline design would need two, good tolerance of cold, and the ability to deliver short bursts of high current without the voltage sagging away. Panasonic prints Photo Lithium 3V on the card.

That burst behaviour is why the CR2 became a standard cell in compact film cameras, and why it has carried on in small electronics that sit idle for long stretches and then need power in an instant. The pack marks it for cameras, smoke alarms and movement sensors. Before you order, read the old cell rather than the device manual: the code is printed on the wrapper, and the cells nearest to it in looks, the CR123 and the CR-P2, are a different size and will not sit in a CR2 holder. If the battery door closes without force, you have the right cell.

Each unit of this listing is one cell on a hanging blister card, ready to hang on a shop hook as it arrives. The minimum order is 10 units, sold in multiples of 10, so one order brings ten cells: enough for a counter display or a maintenance stock rather than a single replacement at home. The cell sits alongside our wider Panasonic range, which runs to the CR123 lithium cell, lithium coin cells in CR2032, CR2025, CR2016 and CR1632, and Alkaline Power cells in AA, AAA, C, D and 9V sizes.

What sort of devices take a CR2 cell?

Compact film cameras are the classic use, and the pack also marks it for smoke alarms and movement sensors. Check the code on the cell you are replacing.

How many cells do I actually receive?

One cell per unit of this listing. The minimum order is 10 units in multiples of 10, so the smallest order brings ten cells in all.

Is a CR2 the same as a CR123 or a CR-P2?

No. All three are 3V lithium cells and they look similar, but the sizes differ, so a CR123 or a CR-P2 will not fit a CR2 holder.

What voltage does it give, and does it hold up under load?

It gives 3V from a single cell. Lithium chemistry is chosen for this size because it can supply short, heavy bursts of current without the voltage dropping away.

Can this cell be recharged?

No. It is a primary lithium cell and nothing on the pack marks it as rechargeable, so it should be used once and then recycled at a battery collection point.