The ER26500 Li-SOCl₂ battery provides a substantially larger energy reserve for devices expected to remain deployed for years with limited opportunities for maintenance.
With 8500 mAh nominal capacity in a 26.2 × 50.0 mm cylindrical format, ER26500 is particularly relevant to industrial projects where battery replacement requires site visits, equipment shutdown, remote access, or significant service cost.
Rather than prioritizing compactness, this model is selected when the design can accommodate a C-size cell in exchange for a longer available operating period.
Built Around Longer Maintenance Intervals
For remote industrial equipment, battery replacement is often more expensive than the battery itself.
Pipeline sensors, environmental monitoring stations, offshore instruments, and infrastructure nodes may be installed far from routine maintenance routes. Increasing the available energy reserve can therefore help reduce service frequency over the equipment lifecycle.
The 8.5 Ah capacity of ER26500 makes it a strong candidate for these long-duration deployments, particularly when the device combines continuous low-level consumption with scheduled sensing, data logging, or communication.
Capacity for More Demanding Field Electronics
ER26500 supports a maximum continuous current of 150 mA and a maximum pulse current of 200 mA.
This gives system designers more operating headroom for electronics that remain active for longer periods or perform repeated measurement and communication tasks throughout deployment.
Typical loads may include:
- sensor excitation and measurement
- onboard data processing
- periodic telemetry
- GPS positioning
- status monitoring
- communication and control electronics
Where wireless modules generate peak currents beyond the standalone cell specification, additional pulse support should still be considered as part of the battery architecture.
Typical Applications
Pipeline & Energy Infrastructure Monitoring
Suitable for pipeline monitoring nodes, corrosion monitoring equipment, leak detection electronics, and other distributed infrastructure systems where routine battery access is difficult.
Remote Industrial Monitoring
A practical energy source for unattended field instruments, condition monitoring systems, telemetry stations, and remote data acquisition equipment requiring extended service intervals.
Utility & Smart Metering
Can support larger utility endpoints, industrial meters, communication-enabled metering equipment, and monitoring systems with greater lifetime energy requirements.
Marine & Environmental Instrumentation
Applicable to selected marine monitoring electronics, buoys, environmental data loggers, and remote sensing equipment operating in locations where maintenance opportunities are limited.
Asset & Equipment Tracking
Suitable for long-term asset tracking, container monitoring, industrial equipment tracking, and logistics telemetry where the device must remain operational over extended deployments.
Remote Infrastructure
ER26500 can also be considered for distributed infrastructure sensors and control electronics installed in isolated or difficult-to-access locations.
Wide-Temperature Operation for Outdoor Deployment
Li-SOCl₂ chemistry makes ER26500 suitable for applications exposed to significant environmental variation.
With an operating temperature range of −55°C to +85°C, the cell can be evaluated for outdoor, industrial, refrigerated, and remote environments where temperature conditions extend beyond those encountered by conventional consumer electronics.
Actual battery performance and service life will still depend on the device load, pulse profile, temperature history, cutoff voltage, and installation conditions.