An LR1130 is the alkaline button cell Energizer sells as the 189 and codes LR54: 11.6 x 3.05 mm, 1.5 V. Silver oxide cells of that size are the 389 and 390.
Printed on the flat side of a coin or button cell, or on the label of a larger battery.
What that code is
Type the code printed on the battery, such as LR1130, 389, AG10.
LR54, LR1130 and 189: the alkaline names
Alkaline codes for this size, from Energizer, Duracell, GP and Ansmann
LR44, 35711.6 x 5.4LR1130, 38911.6 x 3.05LR41, 3927.9 x 3.6LR626, 3776.8 x 2.6
Ringed: the 11.6 x 3.05 mm cell, as wide as an LR44 but only a little over half as thick.
389 and 390: the silver oxide names
Silver oxide codes for this size, from Renata and Energizer
Code
Where it’s printed
389, SR1130W
Renata’s 389 data sheet (high drain)
390, SR1130SW
Renata’s 390 data sheet (low drain); Energizer’s 390 page
SR54
Renata’s 389 sheet; Energizer’s 390 page
D389/390
Renata’s list (Duracell); Energizer’s 390 page
Renata’s data sheets give the 389 and 390 as 11.6 x 3.05 mm, the same as Energizer’s 189, and its 390 sheet allows a height of 2.8 to 3.05 mm. Renata’s product pages round the height to 3.0 mm.
Calculators that name it
Casio calculators: the MS-20UC, MS-7UC and SL-310UC run on a solar cell and one “LR54 (LR1130)” button cell, about 3 years at an hour a day. Casio says to leave battery replacement to an authorized dealer.
Texas Instruments TI-108: one LR1130 if bought after 2014, and a CR1220 if bought from 2004 to 2014. TI says the battery code is etched on the back.
80 mAh or 50: how each maker rates it
Energizer rates its 189 at 80 mAh to 0.9 V. Duracell rates its LR54 at 50 mAh to 1.2 V, and Renata its 389 and 390 at 80 mAh to 1.2 V. Each maker tests to its own voltage, so the figures don’t line up.
Renata’s sheets call the 389 high drain and the 390 low drain. Energizer’s silver oxide manual names calculators among the uses for high drain cells.
If a battery is swallowed
If anyone may have swallowed a coin or button battery, don’t delay: call the 24-hour National Battery Ingestion Hotline at 1-800-498-8666 or your poison center at 1-800-222-1222.
Common questions
Is AG10 the same as LR1130?
Ansmann puts both names on one alkaline cell, which it sells as LR54 / LR1130 / AG10 with the 189 among its comparison types. GP lists V10GA for that size rather than AG10.
Is LR1130 the same as LR54?
Yes, by GP and Ansmann: GP lists LR54 and LR1130 as equivalent models of its 189, and Ansmann names one cell LR54 / LR1130 / AG10. Casio's calculator guide prints LR54 (LR1130).
Is a 390 the same as a 389?
Renata's data sheets give the 390 and 389 the same size, volts and capacity: 11.6 x 3.05 mm silver oxide, 1.55 V, 80 mAh. Renata calls the 390 low drain and the 389 high drain.
Codes, sizes and capacities come from Energizer’s 189 sheet and 390 page, Duracell’s LR54 sheet, GP’s 189 page and Renata’s 389 and 390 pages and data sheets, with Ansmann’s LR54 sheet for its codes; the calculators from Casio’s guide and Texas Instruments’ support page; the swallowing line from the National Capital Poison Center. Checked against published data from Energizer, Renata, National Capital Poison Center, GP Batteries and Ansmann (plus 3 more).
See all 12 sources
National Capital Poison Center (poison.org), Battery ingestion: National Battery Ingestion Hotline
Casio, MS-20UC, MS-7UC and SL-310UC calculator user's guide (PDF)
Texas Instruments, Solution 22950: Battery Type for the TI-10, TI-15 Explorer and the TI-108
Battery sizes come from battery makers' datasheets and device makers' own manuals and help pages. Check your device's manual or the old battery before you buy. If anyone may have swallowed a battery, call the National Battery Ingestion Hotline at 1-800-498-8666 or your poison center at 1-800-222-1222 straight away.
