When your calculator goes dead or your laser pointer flickers out, the culprit is often a tiny but critical component: the LR1130 battery. With dozens of look-alikes—AG10, 189, 389, SR1130—how do you know which ones are truly compatible?
This guide gives you more than a simple equivalence table. It explains the chemistry, performance, compatibility risks, and expert-level tips for choosing the right replacement without damaging your device. Let's get started.
LR1130 Battery Specs, Ratings
- Battery type: Alkaline button cell also available in silver‑oxide variants
- Diameter: 11.6 mm
- Height: 3.1 mm
- Nominal voltage: 1.5 V (alkaline) / 1.55 V (silver‑oxide)
- Typical capacity: 50–70 mAh (alkaline) / 80–86 mAh (silver‑oxide)
- Discharge behavior: Alkaline drops continuously; silver‑oxide stays flat until depletion
- Operating temperature: 0°C to 60°C
- Common codes: AG10, LR54, 189, SR1130, 389, 390
Use-case summary:
Alkaline: Great for basic gadgets like calculators, toys, and LED keychains.
Silver-oxide: Best for watches, thermometers, medical devices—anything that demands stable voltage and precision.
LR1130 Battery Equivalent Chart
| Battery Code / Label | Chemistry | Nominal Voltage | Diameter | Height | Typical Capacity | Main Features / Use | Sample Manufacturer Data |
|---|---|---|---|---|---|---|---|
| LR1130 | Alkaline | 1.5V | 11.6 mm | 3.1 mm | 50–80 mAh | Cost-effective, rapid voltage drop; for low-drain devices | Murata LR1130: 70 mAh |
| AG10 | Alkaline | 1.5V | 11.6 mm | 3.1 mm | 50–80 mAh | Cost-effective, rapid voltage drop; for low-drain devices | Eurobatt AG10 LR1130: 70 mAh, 1.5 mA Kodak AG10: 75 mAh |
| LR54 | Alkaline | 1.5V | 11.6 mm | 3.1 mm | 50–80 mAh | Cost-effective, rapid voltage drop; for low-drain devices | – |
| L1131 | Alkaline | 1.5V | 11.6 mm | 3.1 mm | 50–80 mAh | Cost-effective, rapid voltage drop; for low-drain devices | – |
| 189 (Alkaline) | Alkaline | 1.5V | 11.6 mm | 3.1 mm | 50–80 mAh | Cost-effective, rapid voltage drop; for low-drain devices | Energizer 189: 80 mAh, 83 µA |
| SR1130 | Silver-Oxide | 1.55V | 11.6 mm | 3.1 mm | 80–100 mAh | Stable voltage, long shelf life, low leakage; for high-precision devices | – |
| SR1130W / 389 | Silver-Oxide | 1.55V | 11.6 mm | 3.1 mm | 80–100 mAh | High-drain version; for watches with LED, medical tools | Duracell D389/D390: 80 mAh, 104 µA Renata 389: 80 mAh, 104 µA |
| SR1130SW / 390 | Silver-Oxide | 1.55V | 11.6 mm | 3.1 mm | 80–100 mAh | Low-drain version; for watches, measurement tools | Renata 390 SR1130SW: 80 mAh, 104 µA |
| 387 | Silver-Oxide | 1.55V | 11.6 mm | 3.1 mm | 80–100 mAh | Stable, long-lasting; for precision instruments | – |
Why Battery Size Alone Doesn’t Guarantee LR1130 Compatibility
Just because two batteries share the same diameter and height doesn't mean they're safe to swap. Size is only the surface. What matters most is voltage, internal chemistry, and discharge behavior—none of which you can see by eye.
It’s a common and dangerous misconception: that LR1130, SR1130, and even CR1130 are interchangeable because they fit in the same slot. But fit is not function. A CR1130 may slide in, but it delivers nearly double the voltage. An LR1130 may power on a device made for SR1130, but its voltage will dip quickly, causing malfunction.
In electronics, compatibility isn’t measured in millimeters—it’s measured in millivolts, current curves, and chemistry. Choosing based on size alone is like buying shoes by length without checking width—it might go on, but it won’t work right.
LR1130/SR1130 vs. CR1130 Lithium Cells
On paper, the CR1130 lithium battery looks like a perfect stand-in for an LR1130 or SR1130. After all, they share nearly identical dimensions—what could go wrong?
Plenty.
This isn’t just a matter of fit—it’s a matter of voltage, safety, and the health of your device. As engineers and repair professionals often stress, electrical compatibility always overrides physical compatibility.
CR1130 vs. LR/SR1130: What’s the Difference?
CR1130 (Lithium)
- Voltage: 2.8–3.0 V
- Chemistry: Lithium Manganese Dioxide (Li-MnO₂)
- Size: ~11.5 mm × 3.0 mm
LR1130 / SR1130 (Alkaline / Silver-Oxide)
- Voltage: 1.5 V (alkaline) / 1.55 V (silver-oxide)
- Size: ~11.6 mm × 3.1 mm
So yes, the CR1130 will slide into the battery compartment. But its nearly double voltage output means it can overwhelm circuitry not designed for it.
We’ve seen it firsthand: a customer inserts a CR1130 into a watch calibrated for 1.5 V, and within minutes, the display malfunctions or shuts down completely. In some cases, there’s no second chance—the internal IC is fried.
This is more than inconvenience. It’s preventable damage.
The Hidden Risk: Voltage Overkill
Think of CR1130 as a firehose in a garden hose system. Just because the threads fit doesn't mean the outcome will be good. Devices calibrated for 1.5 V cannot absorb 3.0 V safely—they may overheat, misread, or fail silently.
And here’s the bigger issue: most consumers don’t know CR1130 even exists. The batteries are occasionally included in multipacks or mislabeled in online listings, leading well-intentioned users to make a choice that seems reasonable but isn’t.
Unless your device explicitly lists CR1130 or 3 V lithium support, do not substitute it for LR1130 or SR1130. Physical compatibility means nothing without electrical matching.
This is a textbook example of why “close enough” doesn’t cut it in electronics.
Bottom line: When it comes to button cells, choose based on voltage and chemistry—not just shape. Protect your device. Respect the voltage.
Alkaline vs. Silver‑Oxide Under the Hood
Why does chemistry matter? Because the way a battery delivers its energy over time affects accuracy, runtime, and even the long‑term health of your device.
| Attribute | Alkaline Cell (LR, AG) | Silver-Oxide Cell (SR, 389, 390) |
|---|---|---|
| Chemistry | Zinc–Manganese Dioxide | Silver Oxide–Zinc |
| Nominal Voltage | ~1.5 V | ~1.55 V |
| Voltage Stability | Drops continuously; steeper near end-of-life | Flat discharge; stable voltage until nearly depleted |
| Typical Capacity | 50–80 mAh | 80–100 mAh |
| Service Life | Shorter | Longer |
| Shelf Life | 2–3 years | 4–6 years+ |
| Cost | Lower upfront | Higher upfront, better long-term value |
| Leakage Risk | Higher (especially when discharged) | Lower |
| Typical Uses | Toys, LED gadgets, basic calculators | Watches, thermometers, medical tools |
What the Numbers Mean — The "Why"
Voltage plateau vs. slide: Silver‑oxide cells hold a nearly horizontal discharge curve. Your watch or thermometer sees a rock‑steady 1.55 V until the very end, so timekeeping and readings stay accurate. Alkaline cells, by contrast, decline from day one—think of a hill you have to push your device up every minute.
Capacity & shelf life: Paying ~20 % more for silver‑oxide nets you roughly 30 % more runtime and double the shelf life. That’s a win if you dislike surprise battery swaps.
Leakage risk: Alkalines are more prone to electrolyte seepage, particularly when left discharged inside a device. This hidden cost can corrode contacts and erode user trust.
Total cost of ownership (TCO): Factor in replacement frequency, potential leakage damage, and downtime. Silver‑oxide often works out cheaper in the long run for mission‑critical devices.
Quick Rule of Thumb
Precision or longevity needed? → Go silver‑oxide.Disposable or low‑drain gadget? → Alkaline will do.
Brand‑to‑Brand LR1130 Cross‑Reference
| Manufacturer | Alkaline Model Names | Silver-Oxide Model Names | Notes |
|---|---|---|---|
| Energizer | AG10, LR1130 | 389, 390, SR1130W | Check packaging—alkaline often sold in bulk |
| Duracell | LR54, AG10 | D389, D390 | D-codes indicate silver-oxide chemistry |
| Renata (Swatch) | — | 389, 390 | Swiss brand; consistent chemistry quality |
| Maxell | LR1130 | SR1130W, SR1130SW | W = high-drain; SW = low-drain applications |
| Sony | LR1130 | SR1130W, SR1130SW | Always check the chemistry icon on pack |
| Panasonic | LR54, L1131 | SR1130 | Same size, chemistry varies by model line |
| Kodak | AG10 | — | Usually alkaline sold in economy packs |
Signs of LR1130 Battery Failure
Common symptoms that your LR1130 (or equivalent) is failing:
- Dim or faded LCD displays
- Laggy or unresponsive buttons
- Unstable or flickering LEDs
- Sudden shutdowns or power drops
- Devices behaving erratically despite recent install
What to do when symptoms appear:
- Check the battery label – Is it alkaline? Consider switching to silver-oxide.
- Measure the voltage – A reading below 1.3 V suggests it's near dead.
- Inspect for corrosion – White or green buildup around terminals means it's time to dispose of the battery.
- Switch brands or chemistries – Low-cost packs may include weak cells; try a higher-grade replacement.
If symptoms return quickly, the device likely needs a silver-oxide cell to maintain stable output. dim LCDs, laggy buttons, random shutdowns, or flickering LEDs.
Price‑to‑Performance for LR1130 vs 389
Choosing between alkaline and silver‑oxide isn't just about chemistry—it's about value over time, device behavior, and long‑term maintenance.
| Scenario | Recommended Chemistry | Upfront Cost | Runtime / Stability | Risk Level | Best Use Case |
|---|---|---|---|---|---|
| Kid’s toy or party gadget | Alkaline | Low | Short, drops early | Low | Disposable items, novelty lights |
| Digital calculator (basic) | Alkaline | Low | Moderate | Moderate | Low-power, budget-focused tools |
| Daily-wear analog or digital watch | Silver-Oxide | Medium | Long, stable voltage | Very Low | Prevents time drift, extends battery life |
| Thermometer or glucose meter | Silver-Oxide | Medium | Very stable output | Very Low | Requires accurate readings |
| High-end remote or laser pointer | Silver-Oxide (High Drain) | Higher | Sustained output | Low | High drain, frequent use |
| Bulk promotional devices | Alkaline (Multi-pack) | Lowest | Acceptable for short use | Moderate | One-time-use giveaways or LED souvenirs |
Conclusion
In the world of button cells, what looks the same doesn’t always work the same. The LR1130 family may share dimensions with other batteries, but performance hinges on chemistry, voltage stability, and application context. Choosing between alkaline and silver-oxide isn’t just technical—it’s strategic. Alkaline might power your toy, but silver-oxide keeps your timepiece precise. And as tempting as it may be, never swap in a CR1130 without understanding the voltage risk. Smart battery choices protect your devices, your data, and your peace of mind.
