The LR1130 is a small 1.5-volt alkaline button battery, about 11.6 mm wide and 3 mm thick. Its exact equivalents are the 189, LR54 and AG10: Energizer’s 189 battery is an IEC LR54 alkaline cell of this size. The silver oxide version of the same size is sold as 389 or 390 (SR1130, IEC SR54), and it gives 1.55 volts.
This guide uses Energizer’s own data sheets and its battery cross-reference guide. It compares the alkaline LR1130 with its silver oxide twins, explains what the names mean, and shows which one to buy for a watch, a toy or a calculator.
| LR1130 / 189 / AG10 / LR54 (alkaline) | 389 / 390 / SR1130 (silver oxide) | |
|---|---|---|
| Diameter | 11.25-11.60 mm | 11.25-11.60 mm (390) |
| Height | 2.75-3.05 mm | 2.75-3.05 mm (390) |
| Nominal voltage | 1.5 V | 1.55 V |
| Typical capacity | 80 mAh (to 0.9 V) | 85 mAh (389, to 1.3 V), 84 mAh (390, to 1.2 V) |
| Weight | 1.1 g | 1.35 g |
| IEC code | LR54 | SR54 |
| US (ANSI/NEDA) code | – | 1138SO |
What is the equivalent of an LR1130 battery?
Exact alkaline equivalents: 189, LR54 and AG10. Energizer sells its alkaline cell of this size as the 189, and its data sheet gives the IEC name LR54.
Silver oxide versions of the same size: 389 and 390, also sold as SR1130W or SR1130SW. Energizer’s cross-reference guide lists one 390/389 cell size that replaces batteries labelled 389, 390, SR1130SW, SR1130W, SG10, 189, LR54 and AG10, among other names.
All of these names fit the same battery slot. The difference is the chemistry inside: alkaline (the “L” codes) or silver oxide (the “S” codes).
Can I use a 389 or 390 instead of an LR1130?
Yes. A 389 or 390 is the same size as an LR1130 and gives a very close voltage (1.55 V against 1.5 V). Energizer’s silver oxide manual says silver oxide cells have a flatter discharge curve than alkaline ones. That means a 389 or 390 holds its voltage more steadily as it runs down, which suits watches and measuring devices.
The alkaline LR1130 is usually the cheaper choice and is fine for simple things like small toys.
389 vs 390: what is the difference?
They are the same size and the same chemistry (silver oxide, IEC SR54, ANSI 1138SO), with almost the same capacity. The difference is the kind of device they are built for:
- 390: Energizer’s data sheet says it is designed for continuous low drain, like a simple watch that only runs its hands or display.
- 389: the data sheet says continuous low drain plus high pulse drain on demand. Energizer’s silver oxide manual links that kind of use to watches with a backlight or alarm, and to calculators.
Energizer sells them as one 390/389 cell size in its cross-reference guide. If your old battery says 389, a 389 is the safest match. If it says 390, either will fit.
LR1130 vs 389: voltage as the battery drains
Energizer’s data sheets show how the voltage falls as each battery is used up, measured on a short pulse with a 100-ohm load at 21°C (70°F):
- 189 (alkaline LR1130): about 1.47 V when new, 1.17 V at 40% used and 1.04 V at 80% used.
- 389 (silver oxide): about 1.41 V when new, 1.30 V at 40% used and 1.25 V at 80% used.
The silver oxide cell drops much less. A device that needs a steady voltage may stop working before an alkaline cell is fully used.
What does LR1130 mean?
- L: alkaline chemistry (as in LR44 and LR41)
- R: round
- 1130: the size, roughly 11.6 mm wide (shown as “11”) and 3.0 mm thick (“30”)
The silver oxide version uses “S” instead of “L”: SR1130, often with a W or SW maker’s suffix. LR54 and SR54 are the IEC names for the same size. Numbers like 189, 389 and 390, and names like AG10, are maker and retail codes.
Is LR1130 the same as LR44?
No. They are the same width, but an LR44 is much thicker: up to 5.40 mm, against 3.05 mm for the LR1130 in Energizer’s data sheets. An LR44 will not fit an LR1130 slot. An LR1130 in an LR44 slot will be loose and may not touch the contacts, so don’t swap them.
An LR1130 is also not a CR2032. The CR2032 is a 3-volt lithium coin cell about 20 mm wide, so it is a different size and twice the voltage.
Where LR1130 batteries are used
Energizer’s cross-reference guide lists watches and toys as common uses for its 390/389 size. Small calculators, laser pointers and other little gadgets also use LR1130-size cells. Always check the code on the old battery or in the manual before you buy, because many button cells look alike.
Button battery safety
Small button batteries are dangerous if swallowed. Keep new and used cells away from children and pets. If you think a child has swallowed one, get emergency medical help straight away.
Related battery guides: LR44 vs 357 vs AG13 vs SR44, LR41 battery equivalents, SR626SW and 377 equivalents and CR2032 vs CR2025 vs CR2016.
For the next size up in thickness, see LR43 battery equivalents (186, AG12 and 386).
Frequently asked questions
Is LR1130 the same as 189?
Yes. Energizer’s 189 is an alkaline LR54 cell, which is the same battery as the LR1130.
Is AG10 the same as LR1130?
Yes. AG10 is a common name for the alkaline LR1130 size. Energizer’s cross-reference guide lists AG10 next to 189 and LR54.
Is LR1130 the same as 389?
Same size, different chemistry. The 389 is a silver oxide SR1130 (1.55 V). The LR1130 is alkaline (1.5 V). A 389 works in place of an LR1130.
Is LR54 the same as LR1130?
Yes. LR54 is the IEC name and LR1130 is a size-based name for the same alkaline button cell.
What size is an LR1130 battery?
About 11.6 mm (0.46 in) across and 3 mm (0.12 in) thick. Energizer’s 189 data sheet gives 11.25-11.60 mm by 2.75-3.05 mm.
Can I use LR44 instead of LR1130?
No. The LR44 is the same width but about 2.4 mm thicker, so it won’t fit an LR1130 slot.
What voltage is an LR1130?
1.5 volts nominal. Silver oxide 389 and 390 cells of the same size are 1.55 volts.
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