The ER18505M battery is a D-size 3.6V Lithium Thionyl Chloride (Li-SOCl₂) cell designed for ultra-long-life, high-energy applications. The ER18505M delivers significantly higher capacity and is ideal for devices with low continuous current and occasional pulses, such as smart utility meters, data loggers, remote wireless sensors, and military-grade communication equipment. The “M” variant typically includes enhanced pulse performance and ruggedized construction to withstand harsh environments. Its low self-discharge rate and wide temperature tolerance make it suitable for extended deployments in critical, maintenance-free applications.
3.6V A ER18505M Li-SoCl2 Battery 3200 mAh | Pkcell
Short Description:
With 20+ Years of Experience, Pkcell has become a leading Li-Socl2 Battery manufacturer, Specializing in the production of the ER18505M 3.6 v battery.
Dimension: 18.5*50.5 mm
Weight: 32 g
Self-Discharge Rate (Year): <1%
Shelf Life: >10 Years
Opearting Temperature: -55~85 °C
Standard Current: 1 mA
Max Discharge Current: 800 mA (continuous), 1500 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.
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Datasheet
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Understanding ER18505M Battery
Key Features of Pkcell ER18505M
- 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 ER18505M
- Gas Metering
- Utility Metering
- Alarms and Security Devices
- Memory Back-up
- Tracking Systems
- Professional Electronics
Cost-effective Alternatives to Tadiran, Saft, Xeno & Tekcell
| PKCELL ER Model | Equivalent Competitor Model(s) |
|---|---|
| ER26500 | LS26500 (Saft) |
| ER14505 | LS14500 (Saft), XL-145F (Xeno), Tekcell SB-AA02, TL-5186 (varies) |
| ER14250 | TL-5902 (Tadiran), Tekcell 1/2AA, TL-2150, XL-060F, XL-055F, SL-760, TL-5104, LS14250 |
| ER17505 | LS17500 (Saft) |
| ER34615 | LS33600 (Saft), TL-5930 (Tadiran), TL-5920, XL-205F, LSH20 (Saft) |
| ER18505 | LS-18505, TL-5955 (Tadiran) |
| ER17335 | LS-17335, TL-5903 (Tadiran), TL-5903S |
Specification Of Other Li-SOCl2(Power Type) Models
| Model IEC | Nominal Voltage | Dimensions | Nominal Capacity | Standard Current | Max Continuous Discharge Current | Max Pulse Discharge Current | Cut-off Voltage | Weight Approx | Operating Temperature | |
|---|---|---|---|---|---|---|---|---|---|---|
| ER14250M | 1/2AA | 3.6 | 14.5×25.0 | 1200 | 0.50 | 120 | 250 | 2.00 | 10 | -55~+85 |
| ER14335M | 2/3AA | 3.6 | 14.5×33.5 | 1650 | 0.70 | 300 | 500 | 2.00 | 13 | -55~+85 |
| ER14505M | AA | 3.6 | 14.5×50.5 | 2400 | 1.00 | 500 | 1000 | 2.00 | 19 | -55~+85 |
| ER17335M | 3.6 | 17×33.5 | 2100 | 1.00 | 500 | 1000 | 2.00 | 20 | -55~+85 | |
| ER17505M | 3.6 | 17×50.5 | 3400 | 1.00 | 600 | 200 | 2.00 | 29 | -55~+85 | |
| ER18505M | A | 3.6 | 18.5×50.5 | 4000 | 1.00 | 800 | 1200 | 2.00 | 32 | -55~+85 |
| ER26500M | C | 3.6 | 26.2×50.5 | 8500 | 2.00 | 1000 | 1500 | 2.00 | 55 | -55~+85 |
| ER34615M | D | 3.6 | 34.2×61.5 | 19000 | 3.00 | 2000 | 3000 | 2.00 | 106 | -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
Why Choose Pkcell Battery?
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
- 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.
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.
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?
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."
Thanks to its combination of high energy density, extended service life, and strong pulse capability, the ER18505M battery is widely used in various industrial and professional applications. These often include smart utility metering (e.g., gas, water, and electricity meters that feature wireless communication modules), GPS asset tracking devices, remote monitoring systems, wireless security sensors and alarm systems, industrial IoT (Internet of Things) devices, and memory backup for PLCs or other critical industrial equipment that require periodic high-current draws for data transmission.
The ER18505M offers several significant advantages for demanding applications:
- High Pulse Current Capability: Its spirally wound construction enables it to provide robust current pulses, which are crucial for transmitting data wirelessly or activating components.
- High Energy Density: It stores a substantial amount of energy in a relatively compact size, contributing to extremely long operational lifespans.
- Exceptional Shelf Life: With a very low self-discharge rate (often less than 1% per year), it can typically be stored for 10-20 years without significant capacity loss.
- Stable Voltage Output: It delivers a consistent 3.6V throughout most of its service life, ensuring reliable operation for sensitive electronic devices.
- Wide Operating Temperature Range: This battery performs reliably in harsh environmental conditions, commonly from -55°C to +85°C.
No, the ER18505M battery is a primary (non-rechargeable) cell. It's designed for single use only. Attempting to recharge this battery is extremely dangerous and can lead to severe hazards such as leakage, overheating, rupture, fire, or even an explosion. Always replace depleted ER18505M batteries with new ones.
The primary difference lies in their internal construction and their ability to deliver current. A standard ER18505 typically features a bobbin-type construction, which is optimized for very low, continuous current drains and maximum overall longevity under those specific conditions. The ER18505M, with its spirally wound construction, is specifically engineered to provide significantly higher pulse currents. This makes the "M" version better suited for applications that have intermittent, but substantial, power demands, such as when a device needs to "wake up" and transmit data wirelessly.
While generally safe when used correctly, it's crucial to adhere to these important safety measures:
- Never attempt to recharge these batteries.
- Do not short-circuit the battery terminals, as this can cause rapid heat generation and potential hazards.
- Avoid puncturing, crushing, disassembling, or heating the battery above its specified temperature limits or exposing it to open flame.
- Store batteries in a cool, dry place, away from direct sunlight, moisture, or extreme heat.
- Ensure proper disposal of used or damaged batteries according to local regulations for lithium batteries.
- Keep batteries out of reach of children and pets to prevent accidental ingestion or misuse.
