The ER14505 Li-SOCl₂ battery combines the familiar AA cylindrical format with the long-duration energy characteristics of lithium thionyl chloride chemistry. At 14.5 × 50.5 mm, it provides 2700 mAh nominal capacity while retaining a relatively compact footprint, making it a practical choice for OEM designs that need longer service life without moving to a much larger battery size.
Compared with smaller ER formats, ER14505 offers a broader operating margin for equipment that periodically wakes, measures, communicates, or records data while spending most of its life in a low-power state.
A Balanced AA-Size Cell for Long-Service Equipment
ER14505 occupies a useful middle ground within the Li-SOCl₂ range.
Its 2700 mAh capacity gives designers substantially more available energy than half-AA cells while keeping the battery diameter at just 14.5 mm. This makes it especially suitable for products where enclosure width is restricted but a longer maintenance interval is required.
The format works well in meters, telemetry devices, remote sensors, and tracking equipment where replacing batteries frequently would be inconvenient or costly.
More Headroom for Periodic Active Loads
ER14505 supports a maximum continuous current of 60 mA and a maximum pulse current of 150 mA, giving it more flexibility than smaller low-current ER cells.
This is useful in devices that remain dormant or lightly loaded for long periods but periodically activate:
- wireless communication modules
- sensing circuits
- data acquisition functions
- telemetry transmitters
- status indicators
- tracking or positioning electronics
The higher pulse capability can make ER14505 a stronger candidate for wireless systems than very small Li-SOCl₂ formats, although the actual radio peak current and pulse duration must still be checked against the battery specification.
Where ER14505 Is Commonly Applied
Smart Metering & Utility Devices
Well suited to water meters, gas meters, heat meters, AMR/AMI endpoints, and selected NB-IoT or LoRa meter designs where long operating life and recurring communication events are both important.
IoT & Wireless Telemetry
Useful for industrial IoT nodes, wireless sensors, data collection terminals, and remote telemetry devices that operate on a low-duty-cycle profile.
Asset Tracking
Suitable for selected logistics trackers, container monitoring devices, equipment trackers, and other field-installed electronics that need extended battery life with periodic data transmission.
Remote Monitoring
Applicable to environmental monitoring, infrastructure sensors, pipeline monitoring nodes, and other devices installed where routine battery replacement is difficult.
Cold-Chain & Data Logging
The wide operating temperature capability supports selected temperature and humidity loggers used in refrigerated storage, transportation, and field monitoring.
Wide Temperature Capability for Field Deployment
ER14505 is specified for operation between −55°C and +85°C, giving system designers greater flexibility for outdoor and industrial installations exposed to temperature variation.
This characteristic is particularly valuable in:
- outdoor utility equipment
- refrigerated environments
- remote infrastructure
- industrial monitoring
- seasonal field deployments
The finished device, enclosure, connection method, and load profile must still be validated for the intended environmental conditions.