JCB Mixed Coin Cell Batteries (AG1/AG3/AG4/AG12/AG13) - 15 Pack

This is a single card holding fifteen JCB alkaline watch cells in five different sizes, three of each: AG1 (364), AG3 (392), AG4 (377), AG12 (386) and AG13 (357). Every cell on the card is a 1.5V alkaline button cell, the type most small consumer devices are built around. Buying them as an assortment rather than one size at a time means the code you need is usually already in the house, which matters because a watch that has stopped is far more often short of a cell than broken.

Cells in this size range sit behind the back of a wristwatch, inside a car key fob, under the battery door of a kitchen scale, a digital thermometer, a calculator, a laser pointer, a small keyring light or a noisy toy. Button cells are named differently by almost every maker, which is why each position on this card carries two codes: the AG number and the three digit equivalent. The quickest way to match a replacement is to lift the old cell out, read the number stamped on its face, and find that number or its AG partner on the card.

Sold as one card of fifteen cells, with a minimum order of twenty cards in multiples of twenty, so this is a line for a counter display, a repair bench or a workshop drawer rather than a one off replacement. Leaving the cells on the card until they are wanted is the simplest way to keep them apart from keys and coins, and button cells of any make should be stored where small children cannot reach them. We also stock JCB single size coin cells, including alkaline LR41 (AG3) and LR44 (AG13) in tens and CR2032 lithium coin cells in sixes, if one code runs out faster than the rest.

How do I work out which cell my watch or key fob needs?

Open the battery compartment and read the code printed on the face of the old cell, then look for that same number, or its AG equivalent, on this card.

How many of each size do I get?

Three of each code, so three AG1 (364), three AG3 (392), three AG4 (377), three AG12 (386) and three AG13 (357), fifteen cells in total.

What voltage are these cells?

Each one is a 1.5V alkaline button cell, which is the standard voltage for AG coded watch and calculator cells of this size.

Why does each cell carry two numbers?

The AG number is the common trade designation and the three digit number is the equivalent code many device makers print instead, so both point at the same cell.

Is a shelf life printed on the pack?

The manufacturer does not state a shelf life for this card, so we quote none. Kept in a dry drawer at room temperature, the cells stay carded and separated until needed.