Power your Meshtastic node, LoRa builds, and portable projects with a compact, reliable 3.7V 1100mAh lithium battery designed for low-power radio and development applications.
This battery is ideal for UKSN members building mobile or static comms nodes, experimental LoRa devices, sensors, and custom electronics where size, weight, and reliability matter.
 
High Energy Capacity
With a capacity of 1100mAh at 3.7V, this battery provides relatively long runtimes for low-power devices such as Meshtastic nodes, LoRa modules, microcontrollers, and portable electronics.
 
Out-of-the-Box Compatibility
Fitted with a JST 1.25 connector, this battery works out of the box with popular Meshtastic and LoRa boards such as the Heltec WiFi LoRa 32 V3, with no rewiring required. Ideal for quick, reliable builds and UKSN project kits.
 
Compact & Lightweight
Measuring approximately 400mm × 25mm × 10mm, this small lithium pack is designed for tight enclosures and portable builds, fitting neatly into small project cases without adding unnecessary bulk or weight - ideal for go-bags, sensor nodes, and off-grid comms kits.
 
Versatile Applications
Suitable for:
Meshtastic nodes
Project LoRa builds
Heltec V3 and similar boards
Microcontroller projects
Portable sensors
Emergency and off-grid electronics
RC and hobby electronics

Specifications
Battery Type: Rechargeable Lithium-ion
Nominal Voltage: 3.7V
Capacity: 1100mAh
Connector: JST 1.25 (Micro JST)
Dimensions: ~400mm × 25mm × 10mm
Form Factor: Flat Li-ion pack
Typical Use: Meshtastic nodes, LoRa boards, development and portable electronics

Charging Information (Important)
This product is battery only.
🔸 Charging cables are sold separately (but not needed once installed in a node).
🔸 Only use a charger specifically designed for single-cell 3.7V lithium batteries with current limiting and protection circuitry like our Single-Cell 3.7V Li-ion USB Charger.
🔸 Never connect directly to a 5V or 12V supply.

UKSN strongly recommends using a protected charging module and following safe lithium battery handling practices.

⚠️ Safety & Preparedness Notice
Lithium batteries store high energy in a small space. Incorrect use can result in damage, fire, or injury.
Do not short-circuit
Do not overcharge or deep-discharge
Do not crush or puncture
Do not leave charging unattended
Store and transport responsibly