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Battery Information
Battery Details

The differences between LR and SR cells:

LR cells are Alkaline Manganese based and have a lower energy density or capacity and are 1.5volts.
SR cells are Silver Oxide based, have a higher energy density or capacity and are 1.55volts.
See the Notes page for more info.

Do not confuse with these other batteries listed as "393" LR41.
Do not confuse with the No8.
Do not confuse with the C size domestic battery.
Do not confuse with the F size 1.2 volt rechargeable.

There is no voltage compatible equivalent that I can find for the banned Mercury type except the Orange Hearing aid battery, which is unsuitable for some applications due to little or no air reaching the battery once fitted (check your application). The Alkaline or Silver Oxide types should be fine for most applications.

Equivalents:

7QT, 8, 10L123, 15, 16, 70T, 123, 193, 211, 255, 309, 309-1, 323, 323-1, 393, 393-1, 393A, 398A, 506, 526, 546, 566, 1136SO, 1137SO, 1180M, 1181SO, 1156M, AG5, BSR48H, C, CX48, D193, D309, D309/393, D323, D393, D393/309, E309, E393, F, G5, G5A, GG5, GP48, GP93, GP393, GS5, HS5, H754, L754, LR48, LR750, LR754, MR48, MR754, NR48, R393/15, RW28, RW38, RW48, RW58, S13E, S754, S754E, SB-B3, SB-C3, SG5, SP393, SR48, SR48W, SR753W, SR754, SR754SW, SR754W, V309, V323, V393, WH6, WL6, WL-6, WS5, WS-5, WS6, WS-6, WM6,

Image
not to scale. 		Common
Name. 		Dimensions.
Diameter × Thickness. 		Chemical Composition. Nominal Voltage.
battery LR48. 7.9 mm × 5.4 mm

Contacts:
Case and flat base Positive.
Raised area Negative
layout

Alkaline,

Silver Oxide (Ag2O).

1.5 volts
(78 mAh).

1.55 volts
(80 mAh)
(Ag2O),

(1.35 volts Mercury).

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