Type Typical label Capacity (MAH) Internal resistance (ohms) Weight (grams) Voltage
Silver-oxide SR44, SR44W 150–200 5 to 15 2.3 1.55V
Alkaline LR44, LR1154 100–130 3 to 9 2.4 1.5V
Mercury-oxide MR44, MR1154 ~200 ----- 2.6 1.35V
Zinc-air PR44 600–700 ----- 1.9 1.4V
Code Name Positive Electrode Negative Electrode Electrolyte Nominal Voltage (V) End-point Voltage (V)
B Carbon monofluoride Lithium Organic 3 2.0
C Lithium Manganese dioxide Lithium Organic 3/td> 2.0
L Alkaline Manganese Oxide Zinc Alkali 1.5 1.0
G Copper oxide Lithium Organic 1.5 1.2
M,N (obsolete) Mercury Mercury dioxide Zinc Alkali 1.35/1.40 1.1
P Zinc-air Oxygen Zinc Alkali 1.4 1.2
S Silver Silver Oxide Zinc Alkali 1.55 1.2
Z Nickel oxyhydroxide Manganese dioxide, nickel oxyhydroxide Zinc Alkali 1.5 unknown
Code Formal diameter (mm)
4 4.8
5 5.8
6 6.8
7 7.9
9 9.5
10 10.0
11 11.6
12 12.5
16 16.0
20 20.0
23 23.0
24 24.5
44 11.6
Duracell Energizer IEC Kodak Maxell Panasonic Philips Seiko Sony Varta Others
LR44 A76 LR44 KA76 LR44 LR44 A76 LR44 LR44 V13GA 904, G13, LR1154, PX76A
357, 303, R357 303, 357 SR44 KS35, KS36 SR44W SR44W 357 SR44W SR44W V357, V76PX D357, SR44W, SB-B9

Note: The indicated labels can change over time without prior notice



Featured Image from: Flickr by Adafruit Industries

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