Rechargeable coin cells in hermetic stainless-steel cases. LIR (Li-ion 3.6 V) and ML (Li-MnO2 3.0 V) chemistries from Ø10 mm — for hearing aids, smart watches, IoT sensors and reflow-mount RTC backup.
The hermetic stainless-steel can is what makes a small lithium cell viable in a sealed wearable, a hearing aid or an automotive PCB: it survives reflow soldering, eliminates leakage and resists external mechanical abuse. Our line is exclusively rechargeable — both Li-ion (LIR series) for high cycle count and Li-MnO2 (ML series) for high-temperature reflow-mount applications. Every cell ships with full IEC 60086-4 / 62133 documentation.
Same chemistry, same QC. Pick the catalogue when speed matters; pick custom when geometry, capacity or BMS need to be designed around your enclosure.
3.6 V Li-ion in standard coin formats (LIR1620 / LIR2025 / LIR2032 / LIR2450 / LIR2477). 500+ cycles, ideal for wearables, smart cards and TWS earbuds.
3.0 V rechargeable Li-MnO2 (ML414 / ML2032 / ML2430). 1,000+ cycles, reflow-compatible, used in industrial RTC backup and BLE beacons.
-40 to +85 °C operating range (storage to +125 °C peak). Hermetic crimp survives full SMD reflow. For automotive ECUs, T-BOX and aftermarket modules.
Pin-style Ø5-6 mm and custom-tabbed coin cells for hearing aids, implantable medical devices and high-density wearables.
Extended ranges available on request — speak to engineering for non-standard targets.
| Format | Chemistry | Voltage | Capacity | Cycles | Operating Temp |
|---|---|---|---|---|---|
| LIR1620 | Li-ion | 3.6 V | 12 mAh | ≥ 500 | -20 ~ +60 °C |
| LIR2025 | Li-ion | 3.6 V | 30 mAh | ≥ 500 | -20 ~ +60 °C |
| LIR2032 | Li-ion | 3.6 V | 40 mAh | ≥ 500 | -20 ~ +60 °C |
| LIR2450 | Li-ion | 3.6 V | 120 mAh | ≥ 500 | -20 ~ +60 °C |
| LIR2477 | Li-ion | 3.6 V | 180 mAh | ≥ 500 | -20 ~ +60 °C |
| ML2032 | Li-MnO2 | 3.0 V | 65 mAh | ≥ 1,000 | -40 ~ +85 °C |
| ML2430 | Li-MnO2 | 3.0 V | 100 mAh | ≥ 1,000 | -40 ~ +85 °C |
| Custom | LIR / ML | Per spec | Per spec | Per spec | Per spec |
Welded tabs / leads
Nickel or copper tabs in horizontal or vertical orientation; through-hole posts, JST connectors or custom wires
Reflow-compatible (ML)
ML2032 and ML2430 survive standard lead-free reflow profiles up to 260 °C peak (IPC/JEDEC J-STD-020)
Custom diameter
Down to Ø5 mm pin cells for hearing aids and implantable medical devices
Capacity tuning
Within format constraints — engineered for runtime or pulse current per application
Branding / lot codes
Custom can-stamping, shrink wrap, lot codes and barcodes for traceability
Holders & sockets
Optional matching SMD or through-hole holders shipped pre-fitted to the cell
Our coin cell line runs Korean and Japanese automation: stainless-steel can stamping, electrolyte filling under controlled humidity, hermetic crimping, formation cycling and 100% OCV/IR/leak-test inspection. Each shipment carries serialised lot codes for medical-grade traceability.
Engineering deep-dives that help your hardware team specify the right cell, the first time.
Three families share the 20 mm coin form factor but solve different problems. A practical side-by-side on voltage, capacity, cycle
Read more →A practical IPC/JEDEC J-STD-020 walkthrough for engineers who want to put an ML2032 or ML2430 on a PCB through a real lead-free re
Read more →A 1,000-cycle datasheet number depends on four conditions you cannot read from the spec sheet. Here is how to translate the rating
Read more →A field guide to selecting the right termination for LIR and ML coin cells when you need them welded into a pack rather than dropp
Read more →How rechargeable coin cells lose charge sitting on a warehouse shelf, what determines the rate, and how to plan inventory rotation
Read more →A practical decision guide for picking between LIR (Li-ion 3.6 V) and ML (Li-MnO2 3.0 V) rechargeable coin cells.
Read more →More in this cluster:
Each shipment carries valid UN 38.3 test summary, MSDS and Certificate of Conformity. Additional reports on request.
LIR is rechargeable Li-ion at 3.6 V with 500+ cycles, used in wearables, smart cards and TWS earbuds. ML is rechargeable Li-MnO2 at 3.0 V with 1,000+ cycles and a much wider operating range (-40 to +85 °C); ML survives reflow soldering, so it can be SMD-mounted as an RTC backup.
Yes. We weld nickel or copper tabs in horizontal or vertical orientation per drawing. Through-hole posts and JST connectors are also available.
Yes. ML2032 and ML2430 survive standard lead-free reflow profiles up to 260 °C peak (per IPC/JEDEC J-STD-020). Treat them as a true SMD component.
Standard LIR / ML formats: 5,000 pieces. Custom-tabbed or branded cells: 10,000 pieces minimum, with 25-30 day lead time.
Our coin cells ship to multiple medical OEMs under ISO 13485 traceability. We provide IEC 62133-2 reports, biocompatibility statements (ISO 10993) and lot-level documentation on request.
Yes, every batch is tested per UN Manual of Tests and Criteria, Section 38.3 and ships with valid test summaries. Both LIR and ML coin cells are ATA / IATA compliant.
Send us your envelope and target spec — engineering will respond within one business day.
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