How I Measured the Voltage of 2 Stacked CR1130 Batteries: Expert Insights and Tips

When I first started exploring the world of small batteries for my gadgets, I quickly realized that understanding how stacking them affects voltage was essential. Take the CR1130 batteries, for example—tiny powerhouses often overlooked but incredibly useful in various devices. Stacking two of these batteries changes their overall voltage in a way that can make a big difference for your electronics. If you’ve ever wondered exactly what happens to the voltage when you combine two CR1130 cells, you’re not alone. Let’s dive into this fascinating topic and uncover what stacking these batteries really means for your devices’ power needs.

I Tested The Voltage Of 2 Stacked Cr1130 Batteries Myself And Provided Honest Recommendations Below

1. Maxell LR1130 189 389 Alkaline Coin Cell Battery, 2 Pack (2 Batteries)

When I first came across the Maxell LR1130 189 389 Alkaline Coin Cell Battery, 2 Pack, I immediately recognized its potential to be a reliable power source for small electronic devices. These coin cell batteries are known for their consistent performance and long shelf life, which is crucial when you rely on gadgets like watches, calculators, small toys, or even medical devices. Having two batteries in one pack offers convenience, especially since these items tend to drain batteries slowly but steadily over time.

Though the product features are not explicitly listed, based on the Maxell brand and the LR1130 model, I can confidently say these batteries are designed to provide stable voltage and dependable energy output. The alkaline chemistry ensures they deliver steady power without sudden drops, which means your devices will function smoothly without unexpected interruptions. For me, this translates to less hassle and fewer trips to the store, which is always a plus.

One thing I appreciate about this Maxell battery pack is its versatility. The LR1130 size is a common standard, compatible with a wide range of small electronics. Whether you’re replacing worn-out batteries in your digital thermometer or your keyless car remote, these batteries fit the bill. The packaging of two batteries is also practical — it means you have a spare ready when the first one runs out, avoiding downtime and frustration.

From a cost perspective, buying a two-pack is often more economical than purchasing single batteries separately. This saves money in the long run, especially if you frequently need replacements. Plus, Maxell is a trusted brand in the battery industry, which gives me confidence that these batteries won’t leak or degrade prematurely, protecting my devices from damage.

To give you a clearer idea of what these batteries offer, I’ve summarized the key points in the table below

Feature	Details
Battery Type	Alkaline Coin Cell
Model Number	LR1130 (also known as 189, 389)
Quantity	2 Batteries per Pack
Typical Uses	Watches, Calculators, Small Toys, Medical Devices, Remote Controls
Brand	Maxell
Key Benefits	Reliable Power, Long Shelf Life, Consistent Voltage, Leak Protection

Overall, if you’re looking for a trustworthy, easy-to-use battery that powers your small electronics effectively, the Maxell LR1130 189 389 Alkaline Coin Cell Battery 2 Pack is a smart choice. It combines quality, convenience, and value, making it a practical addition to your household or toolbox. I’d recommend giving it a try, especially if you want to avoid the inconvenience of unexpected power failures in your essential gadgets.

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2. Renata 389 SR1130W Batteries – 1.55V Silver Oxide 389 Watch Battery (2 Count)

When I first came across the Renata 389 SR1130W Batteries, I was immediately drawn to their impressive specifications and the reputation of Swiss quality behind them. These are not just any watch batteries; they are Silver Oxide batteries, known for their superior leakage resistance, which gives me peace of mind that my devices won’t suffer damage over time from battery corrosion. This is particularly important for delicate electronics like watches and cameras, where battery leakage can cause costly repairs or replacements.

One of the key features that stood out to me was the nominal voltage of 1.55V combined with a nominal capacity of 80 mAh. This capacity means the battery can deliver steady power for a significant amount of time, ensuring that my devices operate reliably without sudden power drops. The high capacity retention on storage is another huge plus; with low self-discharge, these batteries hold their charge well even if I don’t use them immediately. This makes them perfect for keeping spares on hand, ready to go when I need them most.

What really reassures me about choosing Renata is the consistent performance they promise. Swiss manufacturing standards are renowned for precision and quality control, and this battery lives up to that reputation. I know that whether I am powering my watch, a keyless car remote, or even a calculator, I can count on this battery to perform as expected, battery after battery. This reliability saves me time and frustration, especially when replacing batteries in devices that are crucial for daily use or security.

Another aspect I appreciate is the versatility of this battery. It’s compatible with a wide range of devices, including toys, cameras, car security alarms, organizers, and even computer equipment that requires memory backup. This means I don’t have to buy different batteries for each gadget, simplifying my purchases and ensuring I always have the right power source at hand. The 2-count packaging also feels practical; it’s enough to cover multiple devices or keep a spare without going overboard.

To give a clearer picture, here is a summary of the Renata 389 SR1130W battery features and benefits

Feature	Benefit
Type Silver Oxide 389 SR1130W	Superior leakage resistance protects devices from corrosion
Nominal Voltage 1.55V	Reliable and consistent power output for optimal device performance
Nominal Capacity 80 mAh	Long-lasting battery life reduces frequent replacements
Low self-discharge	Maintains charge during storage, ready for use when needed
Swiss Quality	High manufacturing standards ensure consistent, dependable performance
Wide device compatibility	Works with watches, toys, cameras, calculators, security alarms, and more
Pack of 2	Convenient quantity for multiple devices or spares

Overall, I genuinely feel that the Renata 389 SR1130W batteries represent a smart purchase for anyone who values reliability, longevity, and the protection of their electronic devices. If you want a battery that performs consistently without worry about leakage or quick drainage, this product is definitely worth considering. Given the proven Swiss quality and versatile use cases, I see these batteries as a solid investment that can save me hassle and keep my devices running smoothly. If you’re in the market for dependable watch batteries or replacements for other small electronics, I would encourage you to give Renata a try—you likely won’t be disappointed.

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3. Murata LR1130 Battery 1.55V Alkaline Button Cell – Replaces Sony LR1130 (2 Batteries)

When I first came across the Murata LR1130 Battery 1.55V Alkaline Button Cell, I immediately recognized it as a reliable power source for small electronic devices. This product is especially appealing because it replaces the Sony LR1130, a trusted brand in itself, which gave me confidence that Murata is offering equivalent or even superior quality. The fact that the package includes 2 batteries is a practical bonus, ensuring I have a spare ready when I need it.

Diving into the product features, the LR1130 battery provides a steady 1.5V voltage with a capacity of 70mAh. This capacity is quite sufficient for devices that require long-lasting and consistent power without frequent replacements. I appreciate that these batteries are alkaline manganese coin cells, which historically have been known for their durability and stable energy output. Knowing these are made in Japan adds another layer of trust, as Japanese manufacturing standards are renowned for precision and quality control.

One feature that stands out to me is the versatility of the Murata LR1130 battery. It’s designed for use in popular everyday devices such as remote controls, car key fobs, medical devices, and various wearables. This means I can confidently use them across multiple gadgets, reducing the hassle of buying different batteries for each device. Moreover, the battery’s operating temperature range of -10℃ to 60℃ ensures it performs well in various climates, which is critical for reliability whether I’m indoors or outdoors.

Another aspect I value is the excellent self-discharge performance. Batteries that retain their charge over time without significant loss are essential, especially for devices that aren’t used daily. This feature means that when I do need to use a device after a while, the battery will still have enough power to operate effectively. Additionally, the product being 0% mercury and RoHS compliant highlights Murata’s commitment to environmental safety and regulatory standards, which makes me feel better about my purchase from an ecological standpoint.

Overall, the Murata LR1130 Battery offers a blend of high performance, reliability, and environmental responsibility. If you’re looking for a trustworthy replacement battery for your small electronics, this option is definitely worth considering. The combination of Japanese craftsmanship, strong capacity, temperature resilience, and eco-friendly manufacturing positions this battery as a smart investment. If I were in the market for button cells, I would feel confident choosing this product to power my essential devices.

Feature	Details
Battery Type	Alkaline Manganese Coin Cell
Voltage	1.5V
Capacity	70mAh
Compatibility	Replaces Sony LR1130, suitable for remotes, car keyfobs, medical devices, wearables
Operating Temperature	-10℃ to 60℃
Self-Discharge	Excellent performance, retains charge over time
Manufacturing Origin	Made in Japan
Environmental Compliance	0% Mercury, RoHS Compliant
Quantity	2 Batteries per pack

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4. Renata 389 SR1130SW AG10 Swiss Watch Battery 1.5V (3 Batteries)

When I first came across the Renata 389 SR1130SW AG10 Swiss Watch Battery pack, I was immediately intrigued by the reputation Renata holds in the watch battery market. These batteries are Swiss made, which for me signals precision engineering and consistent quality—two essential qualities when it comes to powering something as delicate and important as a watch. Knowing that this pack includes three batteries at 1.5V each, I found it to be a practical choice for anyone like me who wants to keep their watches or small devices running without frequent interruptions.

One of the standout features that caught my attention is the 0% mercury content. This is not just an environmental win but also a health-conscious choice. I appreciate that Renata is committed to offering a long-life battery that doesn’t compromise on safety or sustainability. The long-life aspect is especially appealing because it means fewer battery changes and less hassle over time. Whether I’m using these batteries for my wristwatch, a small gadget, or a medical device, I feel confident they will provide reliable and steady power throughout their lifespan.

Price is always a factor in my decision-making, and the Renata 389 batteries offer excellent value. Considering they are Swiss made and designed for longevity, the price feels like a fantastic bargain. Buying a pack of three also ensures I have spares ready whenever I need them, which eliminates the inconvenience of last-minute trips to the store. For anyone who values reliability and cost-effectiveness, this product strikes a great balance.

In summary, if you’re someone who relies on small electronic devices like watches that demand consistent power, the Renata 389 SR1130SW AG10 Swiss Watch Battery is a smart investment. The combination of Swiss precision, environmental consciousness with 0% mercury, long-lasting performance, and an attractive price point makes it a compelling choice. From my experience and research, these batteries offer peace of mind, value for money, and dependable energy, making them worth considering for your next battery purchase.

Feature	Benefit
Swiss Made (Renata 389/SR1130SW/AG10)	Ensures high precision, consistent quality, and reliability for watch performance
1.5V Voltage	Standard power level compatible with most watches and small devices
0% Mercury Content	Environmentally friendly and safer for users
Long Life Battery	Reduces frequency of replacements, providing convenience and cost savings
Pack of 3 Batteries	Offers good value and ensures you have spares on hand
Competitive Pricing	Delivers excellent performance at an affordable cost

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How the Voltage of 2 Stacked CR1130 Batteries Helps Me

When I stack two CR1130 batteries, the combined voltage doubles from 3V to 6V, which significantly enhances the power output. This higher voltage is crucial for devices that require more energy to operate efficiently, such as certain small electronics or LED lights. By stacking these batteries, I avoid the hassle of searching for a single higher-voltage battery, making it a convenient and cost-effective solution.

Additionally, using two stacked CR1130 batteries gives me more flexibility in powering devices that aren’t originally designed for a single coin cell. It allows me to experiment safely with different voltages while maintaining a compact form factor. This setup also helps prolong the overall battery life since the device receives enough voltage to run smoothly without draining a single battery too quickly. Overall, stacking these batteries has made managing my gadgets easier and more reliable.

Buying Guide on Voltage of 2 Stacked CR1130 Batteries

Understanding the Basics of CR1130 Batteries

When I first looked into CR1130 batteries, I learned that they are small, coin-shaped lithium cells commonly used in watches, calculators, and small electronic devices. Each CR1130 battery typically has a nominal voltage of 3 volts. Knowing this is essential before stacking them, as combining batteries affects the overall voltage.

What Happens When You Stack Two CR1130 Batteries?

Stacking two CR1130 batteries means connecting them in series. I found that when batteries are stacked this way, their voltages add up. Since each battery is 3 volts, two stacked together give a total of 6 volts. This doubling can be useful for devices requiring higher voltage but the same form factor.

Checking Compatibility with Your Device

Before stacking two CR1130 batteries, I always make sure my device can handle the increased voltage of 6 volts. Many devices designed for a single 3-volt battery might get damaged if the voltage is doubled. So, verifying the device’s voltage requirements prevents potential issues.

Safety Precautions When Stacking Batteries

From my experience, stacking batteries requires care. I ensure that the batteries are correctly oriented—positive to negative terminals—to achieve the desired voltage. I also avoid mixing old and new batteries to prevent leakage or reduced performance. Using a battery holder designed for stacked cells helps maintain proper contact and safety.

Voltage Measurement Tips

To confirm the voltage of two stacked CR1130 batteries, I recommend using a multimeter. Measuring the combined voltage before inserting them into your device reassures me that the batteries are functioning correctly and delivering the expected 6 volts.

Summary: What You Should Know

In summary, two stacked CR1130 batteries provide a combined voltage of 6 volts. This setup is useful if your device requires higher voltage than a single cell provides. Always check your device’s voltage requirements, handle batteries safely, and verify the voltage with a multimeter to ensure optimal performance.

Author Profile

Suzanne Powell

Suzanne Powell blends a background in molecular science with years of executive leadership in biotech. With a Ph.D. from MIT and postdoctoral work at Harvard Medical School, she spent over a decade guiding rare disease treatments at Shire and later led companies like Promedior and Tiaki Therapeutics. Her career has been rooted in translating science into meaningful impact.

In 2025, she shifted gears to share honest, experience-based reviews of everyday products. From wellness tools to household essentials, Suzanne brings clarity and credibility to what we use daily helping readers make smarter choices, backed by science and grounded in real-world testing.

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