ER26500 3.6V 8500mAh Lithium Thionyl Chloride Battery for Water Gas Flow Meters

The ER26500 lithium thionyl chloride battery pack delivers a reliable 3.6V nominal voltage with an 8500mAh capacity, specifically engineered for utility metering equipment such as water meters, gas meters, and flow meters. Its bobbin-type construction ensures low self-discharge and stable discharge characteristics, making it ideal for long-term installations where battery access is limited. This non-rechargeable primary cell provides consistent power over extended periods, reducing the need for frequent replacement in remote or hard-to-reach metering points.

Features and Construction

The ER26500 is built around lithium thionyl chloride chemistry, offering high energy density and a flat discharge curve that maintains voltage stability throughout its service life. Key specifications include a nominal capacity of 8500mAh and compact dimensions that fit standard meter compartments.

Material and Build

The battery uses lithium thionyl chloride (Li-SOCl2) chemistry, known for its high specific energy and low self-discharge rate. The bobbin-type construction optimises the cell for low-current, long-duration applications like metering, ensuring minimal capacity loss during storage and operation.

Size and Practical Fit

Measuring 26.2mm in diameter and 50.0mm in height, this cylindrical cell fits easily into the battery compartments of most water, gas, and flow meters. Its standard form factor simplifies retrofitting existing equipment without modification.

Uses and Placement

Designed for industrial and utility environments, the ER26500 powers equipment that requires uninterrupted remote monitoring and data logging. Its stable output supports continuous operation in demanding conditions.

Event or Professional Use

Utility companies and industrial facilities rely on this battery for gas meters, water meters, and flow meters in distribution networks, substations, and processing plants. Its long life reduces maintenance visits and operational downtime.

Everyday Home Use

Domestic water meters and gas meters that use replaceable batteries benefit from the ER26500's dependable capacity. Homeowners can expect sustained performance until the meter signals a battery change.

Benefits and Buying Value

The ER26500 offers practical advantages for metering applications: low self-discharge, stable voltage, and straightforward installation. Its design prioritises reliability over rechargeability, suiting long-term deployments.

Reuse and Low Maintenance

While this is a non-rechargeable primary cell, its extended service life minimises the frequency of battery replacements. The low self-discharge rate means batteries remain usable even after years of storage.

Why Choose This Product

For water, gas, and flow meter applications requiring a proven 3.6V 8500mAh power source, the ER26500 delivers consistent performance in a compact, industry-standard format. It avoids the complexity of rechargeable systems while providing dependable long-term energy.