Battery family hub

Button and coin battery sizes

Round cells span four chemistries in this reference. Browse by measured size, then keep chemistry and voltage visible.

Do not group by shape alone

Alkaline LR, silver-oxide SR, lithium CR and zinc-air PR products may all be described casually as button or coin batteries. Their voltages, activation and discharge behaviour differ.

Selection workflow

Start with the printed code. If it is unreadable, use diameter and height to create candidates, then resolve chemistry, voltage and drain before choosing.

Canonical records

Code or aliasChemistryDiameterDrain class

Showing 65 of 65 canonical records.

SR416SW / 3374.8 × 1.65 mm · 1.55 V nominal · SW low drain SR421SW / 3484.8 × 2.15 mm · 1.55 V nominal · SW low drain SR512SW / 3355.8 × 1.25 mm · 1.55 V nominal · SW low drain SR516SW / 3175.8 × 1.65 mm · 1.55 V nominal · SW low drain SR521SW / 3795.8 × 2.15 mm · 1.55 V nominal · SW low drain SR527SW / 3195.8 × 2.7 mm · 1.55 V nominal · SW low drain PR70 / size 105.8 × 3.6 mm · 1.4 V nominal · Other SR616SW / 3216.8 × 1.65 mm · 1.55 V nominal · SW low drain LR621 / AG16.8 × 2.15 mm · 1.5 V nominal · Other SR621SW / 3646.8 × 2.15 mm · 1.55 V nominal · SW low drain SR621W6.8 × 2.15 mm · 1.55 V nominal · W higher drain LR626 / AG46.8 × 2.6 mm · 1.5 V nominal · Other SR626SW / 3776.8 × 2.6 mm · 1.55 V nominal · SW low drain SR626W / 3766.8 × 2.6 mm · 1.55 V nominal · W higher drain SR712SW / 3467.9 × 1.25 mm · 1.55 V nominal · SW low drain SR714SW / 3417.9 × 1.45 mm · 1.55 V nominal · SW low drain SR716SW / 3157.9 × 1.65 mm · 1.55 V nominal · SW low drain SR721SW / 3627.9 × 2.1 mm · 1.55 V nominal · SW low drain SR721W / 3617.9 × 2.1 mm · 1.55 V nominal · W higher drain SR726SW / 3977.9 × 2.6 mm · 1.55 V nominal · SW low drain SR726W / 3967.9 × 2.6 mm · 1.55 V nominal · W higher drain SR731SW / 3297.9 × 3.1 mm · 1.55 V nominal · SW low drain LR41 / AG37.9 × 3.6 mm · 1.5 V nominal · Other PR41 / size 3127.9 × 3.6 mm · 1.4 V nominal · Other SR41SW / 3847.9 × 3.6 mm · 1.55 V nominal · SW low drain SR41W / 3927.9 × 3.6 mm · 1.55 V nominal · W higher drain PR48 / size 137.9 × 5.4 mm · 1.4 V nominal · Other SR48W / 3937.9 × 5.4 mm · 1.55 V nominal · W higher drain SR914SW9.5 × 1.45 mm · 1.55 V nominal · SW low drain SR916SW / 3739.5 × 1.65 mm · 1.55 V nominal · SW low drain SR920SW / 3719.5 × 2.05 mm · 1.55 V nominal · SW low drain SR920W / 3709.5 × 2.05 mm · 1.55 V nominal · W higher drain SR927SW / 3959.5 × 2.7 mm · 1.55 V nominal · SW low drain SR927W / 3999.5 × 2.7 mm · 1.55 V nominal · W higher drain SR936SW / 3949.5 × 3.6 mm · 1.55 V nominal · SW low drain SR936W / 3809.5 × 3.6 mm · 1.55 V nominal · W higher drain CR102510 × 2.5 mm · 3 V nominal · Other SR1116SW / 36611.6 × 1.65 mm · 1.55 V nominal · SW low drain SR1116W / 36511.6 × 1.65 mm · 1.55 V nominal · W higher drain LR1120 / 191 / LR5511.6 × 2.05 mm · 1.5 V nominal · Other SR1120SW / 38111.6 × 2.05 mm · 1.55 V nominal · SW low drain SR1120W / 39111.6 × 2.05 mm · 1.55 V nominal · W higher drain LR54 / AG10 / LR113011.6 × 3.05 mm · 1.5 V nominal · Other SR1130SW / 39011.6 × 3.05 mm · 1.55 V nominal · SW low drain SR1130W / 38911.6 × 3.05 mm · 1.55 V nominal · W higher drain SR1136SW / 34411.6 × 3.6 mm · 1.55 V nominal · SW low drain LR43 / AG1211.6 × 4.2 mm · 1.5 V nominal · Other SR43SW / 30111.6 × 4.2 mm · 1.55 V nominal · SW low drain SR43W / 38611.6 × 4.2 mm · 1.55 V nominal · W higher drain LR44 / A76 / AG1311.6 × 5.4 mm · 1.5 V nominal · Other PR44 / size 67511.6 × 5.4 mm · 1.4 V nominal · Other SR44SW / 30311.6 × 5.4 mm · 1.55 V nominal · SW low drain SR44W / 35711.6 × 5.4 mm · 1.55 V nominal · W higher drain CR121612.5 × 1.6 mm · 3 V nominal · Other CR122012.5 × 2 mm · 3 V nominal · Other CR161616 × 1.6 mm · 3 V nominal · Other CR162016 × 2 mm · 3 V nominal · Other CR163216 × 3.2 mm · 3 V nominal · Other CR201220 × 1.2 mm · 3 V nominal · Other CR201620 × 1.6 mm · 3 V nominal · Other CR202520 × 2.5 mm · 3 V nominal · Other CR203220 × 3.2 mm · 3 V nominal · Other CR232023 × 2 mm · 3 V nominal · Other CR243024.5 × 3 mm · 3 V nominal · Other CR245024.5 × 5 mm · 3 V nominal · Other