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3.6V C ER26500 Li-SoCl2 Battery (8500/9000mAh)

Short Description:

With 20+ Years of Experience, Pkcell has become a leading Li-Socl2 Battery manufacturer, Specializing in the production of the ER26500 battery.


Dimension: 26.3*50.5 mm

Self-Discharge Rate (Year): <1%

Shelf Life: >10 Years

Opearting Temperature: -55~85 °C

Max Discharge Current: 130 mA (continuous), 300 mA (Pulse)

Applications : Electronic devices and Electric power/water/gas meters,Memory ICs and more.


Certification

Certified By IEC, SNI, BSCI, and More, Ensuring Top-Notch Quality and Safety.

PKcell Certification


Product Detail

Product Tags

Key Features of Pkcell ER26500

 

  • High and Stable Voltage
  • High Minimum Voltage During Pulsing
  • Stainless Steel Container
  • Hermetic Glass-to-metal Sealing
  • Low Self-discharge Rate (Less than 1% After 1 year of Storage at +25℃)
  • Wide Operating Temperature (-60℃~+85℃)
  • Restricted for transport(class 9)

 Main Applications of Pkcell ER26500

 

  • Gas Metering
  • Utility Metering
  • Alarms and Security Devices
  • Memory Back-up
  • Tracking Systems
  • Professional Electronics

Specification Of Other Li-SOCl2 Models

 

Model IEC Nominal Voltage(V) Dimensions (mm) Nominal Capacity (mAh) Standard Current (mA) Max Continuous Discharge Current (mA) Max Pulse Discharge Current (mA) Cut-off Voltage (V) Weight Approx (g) Operating Temperature (°C)
ER10450 AAA 3.6 10.0×45.0 800 1.00 50 60 2.00 9 -55~+85
ER14250 1/2AA 3.6 14.5×25.0 1200 0.50 20 45 2.00 10 -55~+85
ER14335 2/3AA 3.6 14.5×33.5 1650 0.70 75 150 2.00 13 -55~+85
ER14505 AA 3.6 14.5×50.5 2400 1.00 100 200 2.00 19 -55~+85
ER17335   3.6 17×33.5 2100 1.00 100 200 2.00 30 -55~+85
ER17505   3.6 17×50.5 3400 1.00 100 200 2.00 32 -55~+85
ER18505 A 3.6 18.5×50.5 4000 1.00 120 200 2.00 32 -55~+85
ER26500 C 3.6 26.2×50.5 8500 2.00 130 300 2.00 55 -55~+85
ER34615 D 3.6 34.2×61.5 19000 3.00 200 400 2.00 107 -55~+85
ER9V   3.6 26.2×50.5 8500 2.00 130 300 2.00 55 -55~+85

More Than Just Individual Cells - We Offer Complete Power Solutions.

 

  • Single Battery With Cables and Connectors
  • Custom LiSOCl2 Battery Packs Based on Your Tailored Needs

ER-battery-and-battery-pack

Why Choose Pkcell Battery?

Decades of Proven Expertise

20+ years in battery manufacturing. Trusted by global brands and customers in 100+ countries.

Global Reach

Experienced exporter to 100+ countries. Offering flexible Air/Sea shipping and delivery terms.

 

Flexible Partnership

Flexible Formal Order MOQ (from $500) and samples available. Partnering with you from design to delivery.

Certified Quality

Strict QC in our 28,000 ㎡ facility. IEC, CE, RoHS certified for reliable performance.

Expert Support

Dedicated technical team with deep Lithium battery knowledge, ready to support your integration.

Custom Solutions

50+ R&D experts design tailored LiSOCl2 battery packs and solutions for your unique needs.

Typical Discharge Characteristics

Typical Discharge Characteristics

Warning:

  • These are non rechargeable batteries.
  • Do not recharge, short circuit,crush, disassemble, heat above 100℃ incinerate.
  • Do not use the battery beyond the permitted temperature range.

Frequently Asked About LiSoCl2 Battery

How long will my order take, how can I pay, and what are the shipping options?

 

  • Lead Time:  Standard samples typically arrive in 7-12 days. Formal orders usually take around 25 days, though smaller quantities might ship faster, potentially within 15-18 days.
  • Payment Methods:  We accept various payment types, including T/T (Telegraphic Transfer), L/C (Letter of Credit), and PayPal.
  • Shipping:  We offer flexibility! Depending on your needs and location, we can ship your order via air freight (using carriers like FEDEX, DHL, UPS, EMS, etc.) or via sea freight.
  • Delivery Terms:  We can work with several common international shipping terms, including EXW, FCA, FOB, CFR, and DDU.

 

What is your minimum order quantity (MOQ), and can I get samples first?

We have a minimum order value of USD $500. The actual quantity you receive depends on the unit price of the specific batteries you choose. Absolutely! We understand you need to test our products. We're happy to provide samples for your evaluation before you place a formal order.

What exactly is passivation? Sounds a bit technical!

Passivation is an interesting natural phenomenon observed in Lithium Thionyl Chloride (LiSO₂Cl₂) batteries! When lithium metal touches the thionyl chloride (SOCl₂) electrolyte, a thin, protective layer forms on the surface of the lithium negative electrode. This layer, mostly made up of Lithium Chloride (LiCl), creates a high-resistance barrier that prevents a continuous reaction between the lithium and the electrolyte. Isn't it fascinating how this process helps maintain the battery's performance?

What are the Effects of Li-SOCl2 Passivation?

Passivation has some excellent benefits along with a few potential drawbacks that are important to consider:

Benefits:

  • Low Self-Discharge: The passivation layer does a fantastic job of slowing down any unwanted side reactions between the lithium and the electrolyte, leading to an impressively low self-discharge rate. Thanks to this, LiSO₂Cl₂ batteries can be stored for many years, often over 10 years, while still keeping most of their capacity intact.
  • Long Shelf Life: Because of the low self-discharge, these batteries can hold onto their energy for quite an extended period, which is great for long-term storage.

Potential Drawbacks:

  • Voltage Delay: When a passivated battery starts discharging—especially after being stored or during high-current pulses—the current first needs to break through or dissolve the high-resistance passivation layer. This can temporarily drop the battery's voltage below its normal operating level before it bounces back. This occurrence is often referred to as "voltage delay."
How is Passivation Activated or Broken (Depassivated)?

 Passivation happens naturally during storage. To effectively break the passivation layer and reduce voltage delay:

 

  • Apply a continuous load (discharge) to the battery. This current flow helps disrupt or dissolve the LiCl layer.
  • The necessary load duration and magnitude to break the passivation can vary based on several factors, including the battery's size, how long it's been stored, the storage temperature, and the extent of passivation. Typically, using higher currents and allowing for longer discharge times are more effective in breaking down the layer. Once this layer is disrupted, the voltage will rise to the battery's nominal operating plateau.
My battery's voltage seems a bit low when I first use it, or after it hasn dormant for a while. Is it broken?

Not at all! That initial lower voltage is usually just the battery "waking up." It's a direct result of that protective "skin" we talked about (passivation). The battery needs a moment to push through this layer, and then the voltage will rise to its normal level. It's a sign of a healthy, long-lasting battery!

How long does this initial "voltage dip" or delay usually last?

It varies! It depends on how long the battery was stored, the temperature it was stored at, and how much power your device is drawing. Usually, it's very short, just a few seconds or minutes under a continuous load. For low-power applications, it might take a bit longer to fully recover.

Can I do anything to prevent or reduce this initial voltage delay?

While you can't prevent the passivation layer from forming during storage (it's what gives the battery its long life!), you can help "break through" it. Applying a continuous load to the battery for a short period is the most common way to activate it and bring the voltage up. The required load depends on the battery and application.

Does where or how long I store the battery affect this voltage behavior?

Yes, absolutely. Longer storage times and higher storage temperatures can sometimes lead to a thicker passivation layer, potentially causing a slightly more pronounced voltage delay when you first use the battery. Storing them correctly helps manage this.


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