
Key Highlights
- ER14335 and ER14335M are strong lithium thionyl chloride (Li-SOCl2) batteries. They last a long time and have a lot of energy.
- ER14335 batteries are great for low-to-medium-current uses like utility meters and alarm systems.
- ER14335M batteries work well for high-current needs, such as GPS devices and industrial machines.
- Both batteries give a steady 3.6 volts and can handle very high and low temperatures, from -55°C to +85°C.
- It's crucial to pick the right battery based on the power your device needs and how you will use it.
Introduction
Lithium batteries play a key role in powering many electronic devices. Two popular options are ER14335 battery and ER14335M battery. Understanding the differences between these two batteries is essential to choosing the best one for your needs. Picking the right battery can boost your device's performance, extend lifespan, and save money. Even though they are quite similar, their structure and performance vary, making each suitable for different purposes. Let's explore ER14335 and ER14335M batteries closely to help you make a smart choice.
What is ER14335 Lithium Battery?

The ER14335 battery is a type of lithium battery that cannot be recharged. It uses lithium thionyl chloride (Li-SOCl2) in its design. This battery is the size of a 2/3AA. It works well in small electronic devices. The battery has a normal voltage of 3.6 volts and can hold about 1650mAh, though this can change a little between different brands. This battery is good for low-to-medium-current devices that need a steady power source over a long time. It is known for lasting a long time and keeping a constant voltage. It also has a low self-discharge rate, so it's perfect for devices that do not need much care or are rarely used.
What is ER14335M Lithium Battery?

The ER14335M battery is like the ER14335 battery. It is a 2/3AA size and is a non-rechargeable lithium battery. This battery uses lithium thionyl chloride (Li-SOCl2) as its chemical makeup. It gives a constant voltage of 3.6 volts. However, the ER14335M has a special internal structure. This makes it better for medium-to-high-current tasks. Its capacity is slightly lower at about 1200mAh. Still, it can manage higher pulse and ongoing currents. The ER14335M lithium battery is perfect for devices needing quick power boosts. It also works well in challenging situations where the temperature changes and vibrations happen.
Similarities Between ER14335 and ER14335M Batteries
Features:
- Battery Type: Both ER14335 and ER14335M are lithium batteries that cannot be recharged.
- Chemical Composition: These lithium batteries use lithium thionyl chloride (Li-SOCl₂).
- Voltage: The voltage for each battery is 3.6V. They can work with similar devices.
- Dimensions: Both batteries are 2/3AA size. They measure 14.5mm in width and 33.5mm in height.
- Weight: Each battery weighs about 13g. This makes them light and easy to carry.
- Operating Temperature Range: Both lithium batteries can work between -55°C and +85°C.
- Shelf Life: Both can last up to 10 years when stored correctly. They have a low self-discharge rate of 1% or less each year.
- Applications: Both can be used in industrial sensors, smart meters, IoT devices, medical equipment, and tracking systems.
Benefits:
- It has high energy density for long-lasting performance.
- The voltage stays stable and high throughout the battery's life.
- A low self-discharge rate makes it last even longer.
- It has glass-to-metal sealing for added safety.
- A non-flammable electrolyte reduces the chance of fire and explosions.
ER 14335 and ER 14335M have some things in common so that you can use them in similar ways sometimes. However, they differ in their pulse discharge capacity and internal resistance. This means each one is better for specific purposes.
Key Difference: ER14335 vs ER14335M 3.6-Volt Battery
When choosing between the ER14335 3.6v battery and the ER14335M 3.6v battery, it's important to know how they differ. This knowledge helps you find the right battery for your needs. Let's examine what sets them apart.
Feature | ER14335 | ER14335M |
---|---|---|
Type | Energy type | Power type |
Structure | Carbon Bag Structure | Wound Structure |
Capacity | 1650 mAh | 1200 mAh |
Battery Life | Longer lifespan | Shorter lifespan |
Standard Current | 0.7 mA | 0.7 mA |
Max Continuous Discharge Current | 50 mA | 200 mA |
Max Pulse Discharge Current | 100 mA | 400 mA |
Best for | Low-current, long-duration use cases, like utility meters, medical devices, alarms, and IoT sensors. | Excel in medium-current applications requiring higher pulse currents, such as GPS trackers, industrial equipment, and security systems. |
Cost | Lower | Slightly higher due to enhanced performance. |
The main difference between the ER14335 and ER14335M batteries is how they are made and how much energy they hold. The ER14335 3.6v lithium battery is ideal for steady, low-to-medium-current needs. Its special carbon bag design helps it provide long-lasting and stable power. In contrast, the ER14335M 3.6v lithium battery has a different design, allowing it to handle medium-to-high-current needs better. This makes it good for tasks that require bursts of more energy. The capacity of the ER14335 battery is roughly 1,650mAh. The ER14335M battery has a bit less capacity, at about 1,200mAh.
Should I Choose ER14335 or ER14335M for Devices?
Choosing the right battery, ER14335 vs ER14335M, depends on your device's power needs and functions. Here are some tips for you:
ER14335 3.6v battery is a great choice if your device:
- ✅ Needs steady, low-to-moderate current.
- ✅ Does not need frequent high pulse discharge.
- ✅ Works great in locations with average power needs.
- ✅ A smart option if you want an inexpensive battery that lasts a long time.
Examples of applications suitable for ER14335 lithium batteries:
- IoT devices, including smart sensors and remote monitors
- Medical equipment like glucometers and infusion pumps
- Tracking systems, such as GPS trackers and asset trackers
- Utility meters for gas, water, and more

ER14335M 3.6v battery is a better option if your device:
- ✅ Needs strong pulse currents often, like when sending data over wireless networks.
- ✅ Requires a steady voltage output even with heavy loads.
- ✅ Works well in tough places where reliability is very important.
- ✅ Needs enhanced performance compared to standard LiSoCl2 batteries.
Examples of applications suitable for ER14335M lithium batteries:
- Industrial sensors and meters, like pressure sensors and gas detectors.
- Security systems, including alarm systems and motion detectors.
- Smart meters, such as electricity meters and data loggers.
- Wireless communication modules, which include LoRa devices and RFID tracking.

Quick Tips:
- ER14335 is an excellent, cost-effective choice if you need a steady, reliable battery for low-to-moderate discharge rate applications.
- ER14335M is the better choice if your device requires higher pulse discharges or has to work in more demanding conditions.
Before you buy a battery, check your device's specifications. This will help you find out if the battery type is right for your device. Choosing the right battery will help it run better and last longer.
Conclusion
In conclusion, it is important to understand the differences and uses of ER14335 and ER14335M batteries. Knowing these will help you choose the right power source for your devices. Both battery types are trustworthy and work well, but their designs and compatibility differ. Select ER 14335 or ER 14335M based on your device's needs and how much power it requires. Always check your device's specifications before buying to ensure the battery type fits. Choosing the right battery results in better performance and a longer lifespan. To purchase good-quality ER14335 or ER14335M batteries, look for reputable suppliers that provide reliable products.
Where can I purchase ER14335 or ER14335M batteries in the United States?
You can find these batteries online or buy them directly from battery makers. Many electronics stores and special battery suppliers also sell them. Make sure to purchase from a trustworthy source.
Pkcell has been a leading lithium battery manufacturer since 1998. We supply high-quality batteries to customers in over 100 countries. Here are some reasons why Pkcell batteries stand out:
- ✅ Certified & Trusted – Our ER14335 and ER14335M batteries meet IEC, CE, UL, MSDS, CB, UN38.3, PSE, and KC standards, ensuring safety and top performance.
- ✅ OEM & ODM Services – We offer customized battery solutions to match your specifications if a single battery does not meet your power requirements.
- ✅ Flexible Order Quantities – We offer competitive pricing and special discounts if you need small batch or bulk orders.
- ✅ High Production Efficiency – Our 28,000㎡ factory enables fast, large-scale battery production and timely delivery.
- ✅ Reliable Shipping – Our effective delivery system ensures quick and secure delivery of batteries worldwide.
- ✅ Professional Technical Support – Our experienced engineering team is ready to assist with any technical questions or customization needs.
- ✅ Excellent Customer Service – Our dedicated support team is available to help before and after your purchase.
- ✅ Free Sample Testing – Try our ER14335 and ER14335M batteries to evaluate quality and performance before placing a bulk order.
For dependable ER14335 and ER14335M 3.6V lithium batteries, Pkcell is your go-to choice! Contact us today!
Frequently Asked Questions
Can I use ER 14335 and ER 14335M 3.6-Voltage interchangeably?
Yes, in some cases, you can use them in the same way. Both batteries are the same size (2/3AA) and have the same voltage (3.6V), so they can fit in the same devices. However, the ER14335M 3.6v batteries can handle high pulse discharge better. This feature is vital for some situations. Always check your device's power requirements before switching one battery for the other.
What are the safety precautions when using ER14335 and ER14335M batteries?
Always be cautious when you use and store lithium batteries. Keep them in a cool and dry spot. Do not let them get too hot or wet. Never poke, burn, or open these batteries. It's important to throw them away correctly by following local guidelines.
For extra safety tips, read our blog, "Battery Maintenance and Safety Tips: A Complete Guide."
Post time: Apr-01-2025