An LR41 is a 1.5 V alkaline button cell, 7.9 mm across and 3.6 mm thick, sold by Energizer and GP as the 192. The 392 and 384 are silver oxide cells of that size.
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 LR41, 392, AG3.
Alkaline 192 or silver oxide 392
Each LR41-size code, its chemistry and the maker that prints it
Code
Chemistry
Where it’s printed
LR41
Alkaline
Energizer 192 sheet (IEC), GP’s 192 list, Ansmann
192
Alkaline
Energizer, GP
V3GA
Not stated
GP’s 192 list
LR736, AG3
Alkaline in Ansmann’s name
Ansmann’s LR41 / LR736 / AG3 sheet
392
Silver oxide
Renata, Energizer
384
Silver oxide
Renata; Energizer’s 392 list
SR41
Silver oxide
Renata’s 392 and 384 sheets; Energizer’s 392 page
SR736W, SR736SW
Silver oxide
Renata’s 392 and 384 data sheets
SR41W, SR41SW
Silver oxide
Renata’s list (Maxell, Panasonic, Murata, Toshiba)
D384/392
Silver oxide
Renata’s list (Duracell); Energizer’s 392 page
Ansmann lists the silver oxide 392 among the comparison types for its alkaline LR41. Energizer’s and Renata’s silver oxide lists name no alkaline cell.
LR44, 35711.6 x 5.4LR1130, 38911.6 x 3.05LR41, 3927.9 x 3.6LR626, 3776.8 x 2.6
Ringed: the 7.9 x 3.6 mm cell that LR41, 192 and 392 name, beside the bigger LR44 and the smaller 377.
The two silver oxide cells: 392 and 384
Renata’s data sheets give both 45 mAh and the same 7.9 x 3.6 mm size, and call the 392 high drain and the 384 low drain. Energizer’s silver oxide manual describes the two kinds: low drain cells for steady use over years, as in analog watches, and high drain cells for steady use with bursts, as in LCD watches with a backlight, watches with alarms and calculators.
How the makers rate them
Energizer rates its 192 (LR41) at 45 mAh to 0.9 V, and Renata its 392 at 45 mAh to 1.2 V. The two figures stop at different voltages, so they don’t compare directly. Energizer has marked its 192 sheet obsolete.
A thermometer that takes either
Philips’ SCH420 digital thermometer manual gives its battery as “1.5 V (LR41 or SR41)”, so either chemistry is the maker’s own choice there. For any other device, fit the code its manual or old battery shows.
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 AG3 the same as LR41?
AG3 is Ansmann's name for its alkaline LR41. Ansmann sells one cell as LR41 / LR736 / AG3. Energizer's, Renata's, GP's and Duracell's sheets for this size don't list AG3.
Is LR41 the same as 392?
Only in size, on Energizer's and Renata's sheets. The LR41 is alkaline at 1.5 V and the 392 silver oxide at 1.55 V, both 7.9 x 3.6 mm.
What is V3GA?
GP lists V3GA as an equivalent model of its 192, the alkaline LR41. GP's page doesn't say whose code it is.
Codes, sizes and capacities come from Energizer’s 192 sheet and 392 page, GP’s 192 page, Renata’s 392 and 384 pages and data sheets and Energizer’s silver oxide manual, with Ansmann’s LR41 sheet for its codes; the thermometer from Philips’ manual; the swallowing line from the National Capital Poison Center. Checked against published data from Energizer, Renata, National Capital Poison Center, Ansmann and GP Batteries (plus 1 more).
See all 10 sources
National Capital Poison Center (poison.org), Battery ingestion: National Battery Ingestion Hotline
Philips, Digital thermometer SCH420 user manual (PDF)
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.
