Duracell CR2032 Lithium Coin Batteries - 4 Pack

This is a pack of four CR2032 lithium coin cells from Duracell, supplied in a single retail blister. CR2032 is a standard designation rather than a brand name, and the number tells you the size: a coin cell 20mm across and 3.2mm thick. The chemistry is lithium, which gives a nominal 3V from one cell, so a single CR2032 supplies what two 1.5V alkaline cells together would. Duracell also lists this cell as DL/CR2032, so either code stamped on your old battery brings you to the same place.

Coin cells this size turn up in more places than most people expect. Car key fobs and keyless entry remotes are the common one, along with garage and gate remotes, heating and thermostat controls, kitchen scales, calculators, digital thermometers, small activity trackers, LED tealights and the CMOS holder on a desktop computer motherboard. Before ordering, lift the old cell out and read the face of it: the code is printed on the positive side. Pay attention to the last two digits, because they give the thickness. A CR2025 is the same width but thinner, and in a holder built for a CR2032 it will often sit loose and drop contact.

The pack is marked Baby Secure and carries a bitter taste icon: the cells are coated to put a child off swallowing one, and the blister resists small hands, so have scissors ready. Coin cells are a real hazard to young children, so keep spares sealed in the pack and out of reach, and never let loose cells share a pocket with keys or coins, where a metal bridge across both faces can short them. One unit is a pack of four cells, and the minimum order is 6, sold in multiples of 6, or 24 cells in all. It sits alongside our wider range of Duracell cells, including CR2025 and CR2016 coin cells, LR44 button cells and CR123 lithium cells.

How do I check which coin cell my device needs?

Slide the old cell out and read the printing on its flat positive face. The code is marked there, and if it reads CR2032 or DL/CR2032 then this is the cell you want.

Will a CR2025 or CR2016 fit the same holder?

They are the same 20mm width but thinner, at 2.5mm and 1.6mm against 3.2mm here, so they often sit loose in a CR2032 clip and lose contact when the device is knocked.

What voltage does one of these cells give?

A lithium coin cell of this type runs at a nominal 3V, which is why most devices take one cell rather than a pair of 1.5V alkaline cells.

How many cells do I actually receive, and what is the minimum order?

One unit is a single blister holding four cells. The minimum order on this listing is 6 units, sold in multiples of 6, so a first order brings you 24 cells.

What does Baby Secure on the pack mean?

The pack states a bitter coating on the cells to put a child off swallowing one, and the blister is built to resist small hands, so you will need scissors to open it.

Can I keep the spares in a drawer once the pack is open?

Leave unused cells sealed in their blister sections rather than loose. A key or a coin lying across both faces of a bare cell will short it and drain it.