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ER34615 vs ER34615M: Which Battery is Right for You?

Key Highlights

  • The ER34615 and ER34615M batteries are quality options in lithium thionyl chloride batteries.
  • They offer strong power and reliability for various devices.
  • The main differences are their design, capacity, and current.
  • The ER34615 works best for devices that need small amounts of current.
  • The ER34615M is better for products that use medium amounts of current.
  • It's important to understand these differences to pick the right battery.
  • Buy batteries from trusted sellers, like Pkcell, to avoid fake products and ensure good performance and safety.

Introduction

As technology gets better, more types of batteries become available. Two common choices are the ER34615 and the ER34615M. These lithium batteries are widely used in industry, smart devices, and IoT systems. Both are primary lithium batteries, but they work differently and have different uses and technical details. This article provides a clear comparison to help you choose the right battery for your needs.

Understanding ER34615 and ER34615M Batteries

The Basics of Lithium Thionyl Chloride Battery Technology

Lithium thionyl chloride technology is used in ER34615 and ER34615M lithium batteries.

Lithium thionyl chloride technology is used in ER34615 and ER34615M lithium batteries. These types of batteries cannot be recharged. They produce power through a chemical process. This process occurs between lithium at the anode and thionyl chloride at the cathode. As a result, it creates a flow of electrons that gives us electrical energy.

A critical feature of lithium thionyl chloride batteries is their high voltage. The ER 34615 and ER 34615M battery provide a voltage of 3.6V. This is much higher than the voltage found in alkaline or nickel-cadmium batteries. These batteries also have a very low self-discharge rate. This means they can hold their charge for a long time. Because of this, they are a good option for places that need power for an extended time.

What is an ER34615 Battery?

ER 34615 batteries are suitable for low-current uses.

The ER34615 lithium battery is a D-size battery. It cannot be recharged. It has a voltage of 3.6V and a capacity of about 19,000mAh, though this can be different by manufacturer. This battery uses lithium-thionyl chloride (Li-SOCl₂) technology. Because of this, it lasts a long time, keeps a steady voltage, and has a low self-discharge rate. ER 34615 batteries are suitable for low-current uses. For example, they work well in heat meters, gas meters, IoT systems, and fault indicators.

What is an ER34615M Battery?

This battery has a wound structure. This design helps it deliver high pulse and continuous currents.

The ER34615M batery is a D-size lithium battery, like the ER 34615 model. The ER 34615M battery also has a very long shelf life. It gives steady performance and is very durable, even in challenging situations. This battery has a wound structure. This design helps it deliver high pulse and continuous currents. Because of this, it is excellent for medium-current needs. You can find this battery in GPS devices, wireless parking sensors, RTUs, DTUs, and industrial equipment.

What are the Similarities Between ER34615 and ER34615M Batteries?

Features

  • Type: Both are lithium batteries that cannot be recharged.
  • Chemical Composition: They both contain lithium thionyl chloride (Li-SOCl2).
  • Voltage: They have a nominal voltage of 3.6V and a cut-off voltage of 2V.
  • Dimension: Both are D-size batteries. Their diameter is 34.2mm, and their height is 61.5mm.
  • Weight: The ER34615 weighs 107g, which is very close to the ER34615M's 106g.
  • Operating Temperature Range: They work well in temperatures from -55 to +85 degrees Celsius.
  • Shelf Life: These batteries can last up to 10 years if stored in the same conditions.
  • Applications: They can be used in similar devices, such as smart metering systems and IoT devices. 

Advantages

  • High energy density
  • High voltage
  • Stable during most of the lifetime
  • Low self-discharge rate (≤1% per year during storage)
  • Long storage life (10 years under room temperature)
  • Hermetic glass-to-metal sealing
  • Non-flammable electrolyte
  • Safety assurance: No fire, No explosion, No leakage

Key Difference: ER34615 vs ER34615M Battery

When you need to pick between the ER 34615 battery and the ER 34615M battery, knowing their key differences is essential. This helps you get the best performance from them. Let's find out what makes these two lithium batteries different.

Feature ER34615 ER34615M
Type Energy type Power type
Structure Carbon bag structure Wound structure
Capacity 19,000 mAh 14,000 mAh
Battery Life Longer lifespan Shorter lifespan
Standard Current 3 mA 10 mA
Max Continuous Discharge Current  200 mA 2000 mA
Max  Pulse Discharge Current 400 mA 3000 mA
Applications Low-current devices (e.g., heat meters, water meters, wireless ground magnetic, gas meter, IoT, temporary recording wave fault indicator, etc.) Medium-current devices (e.g., wireless parking tester, industrial gas meter, IoT, RTUs, DTUs, GPS, cold chain logistics monitoring, etc.)
Cost more affordable Slightly more expensive

ER34615 is a battery made for energy needs. It has a carbon bag structure, which is good for low-current discharge. The ER34615M is a power battery. It has a wound structure, designed for medium-current discharge. Both ER34615 and ER34615M batteries have different capacities and lifespans. The ER 34615 battery can store about 19,000mAh of energy, while the ER 34615M battery can store around 14,000mAh.

Pros and Cons: ER34615 vs ER34615M

The benefits and limitations of ER34615 Battery

The Benefits of ER34615 Battery

  1. Greater Nominal Capacity: The ER34615 offers around 19,000mAh, providing long-lasting power.
  2. Perfect for Low-Power Uses: It functions excellently in devices that need consistent, low energy for an extended period.
  3. More Cost-Effective: It is often less expensive than the ER 34615M, making it a smart option for saving money.

The Limitations of ER34615 Battery

  1. Lower Current Output: This device provides steady power, but it may struggle with high pulse demands.
  2. Slower Response to Sudden Power Needs: It might not deliver quick bursts of energy during emergencies.

 

The benefits and limitations of ER34615M Battery

The Benefits of ER34615M Battery

  1. Higher Pulse and Continuous Current: This gives up to 4000mA pulse current. It works nicely with devices needing different power levels.
  2. Stable Power for High-Pulse Applications: It ensures there is always energy for devices that need quick bursts of power.
  3. Better Performance in Harsh Environments: This can quickly deal with temperature changes and vibrations.

The Limitations of ER34615M Battery

  1. Lower Nominal Capacity: It holds around 14,000mAh. This is less energy compared to the ER 34615.
  2. Higher Cost: It tends to be pricier due to its improved discharge abilities.

Should I Choose An ER34615 or ER34615M Battery for My Devices?

There is no single battery that fits everyone. You need to choose one based on your device's power needs and how you use it. Here are some key points to consider when deciding between the ER34615 and ER34615M batteries:

  1. Device Requirements: Check your device's manual to find the best battery type for good performance.
  2. Power Consumption: If your device needs low and steady power for a long time, the ER 34615 battery is the best choice. For devices that require higher power or constant energy, go with the ER 34615M battery.
  3. Operating Environment: Both batteries can work in tough conditions, but the ER34615M performs better in high-power industrial places.
  4. Application Type: Use the ER34615 battery for smart meters, gas meters, and long-term IoT setups. Choose the ER34615 M for GPS trackers, industrial sensors, and wireless devices that need quick bursts of power.
  5. Cost and Availability: The ER34615 battery is often cheaper and easier to find because it's made for standard low-power uses. The ER34615M battery is a bit more expensive due to its higher power output and design, making it best for industrial and high-power needs.

Quick Tips:

  • Use the ER34615 battery for devices that use low energy. This includes smart meters and IoT sensors. They need strong power for a long time.
  • Use the ER34615M battery for devices that need more energy. This includes GPS trackers, RTUs, and industrial machines.

Using the correct battery can make your device work better and last longer. Before buying a battery, it is important to check your device's specifications.

Conclusion

In conclusion, when deciding between ER34615 and ER34615M batteries, think about what your device needs. If you use devices that need much power, the ER34615M could be better because it provides more current. If you want a battery that lasts longer, the ER34615 is a good option with a longer life. It is vital to check what your equipment needs to pick the right battery. If you are unsure about which battery fits your device, you can contact our expert for help.

Why Choose Pkcell?

Pkcell started in 1998. It is a top battery maker in China. They produce safe, reliable, and high-quality batteries. People recognize them for their great and new power solutions. The company has a large factory that is 28,000 square meters. A team of over 50 people works on research and development there. Their high-quality batteries have been sold to customers in over 100 countries.

Pkcell cares about the quality of their products and how they are made. They follow ethical and sustainable practices. They follow strict quality checks and use safe ways to make their products. When you choose Pkcell, you get batteries that work well and meet high environmental standards.Pkcell primary lithium battery

Frequently Asked Questions

Can ER34615 batteries be used as direct replacements for ER34615M?

Not always. While ER34615 and ER34615M are both D-size, 3.6V lithium batteries, they are designed for different power needs. Their interchangeability depends on the device's power requirements.

If your device has a low power demand, ER34615 can replace ER34615M. If your device needs a high pulse or continuous current, ER34615 cannot replace ER34615M, as it may cause performance issues.

Check your device's power requirements before swapping these batteries. If your device relies on high pulses or continuous power, stick with ER34615M. If your device uses steady, low current, ER34615 may work as a substitute.

Always refer to the device manual for compatibility!

What are the primary industries or sectors that commonly use either ER34615 or ER34615M batteries?

Industries such as medical devices, security systems, and industrial uses often use ER34615 or ER34615M batteries. These batteries are chosen because they provide long-lasting power and reliability. These fields rely on these strong batteries to keep their devices and equipment working well and effectively.

What are the maintenance and storage recommendations?

Store ER34615 and ER34615M batteries in a cool and dry place. Keep them away from heat and moisture. Do not recharge them, as they can overheat or leak. To prevent short circuits, keep the battery ends away from metal. Avoid mixing old and new batteries or using different brands together. Protect the batteries from getting damaged. Check them regularly for leaks or swelling. Keep them out of reach of children and pets to avoid choking hazards. Always recycle used batteries properly through local programs.


Post time: Mar-06-2025