Uniross ML2020 Lithium Rechargeable Coin Cell Battery | Industrial Bulk Supply

Model No: ML2020

Uniross ML2020 lithium-aluminium rechargeable coin cells deliver 40 mAh at 3V in a 20.0mm diameter, 2.0mm profile — 33% more capacity than the ML2016 in the same footprint with a 0.4mm height increase. Where the mechanical design permits the 2.0mm height, the ML2020 is the preferred specification for rechargeable 20mm coin cell applications: it delivers the maximum energy available in the 1.6–2.0mm height range while maintaining 400 cycle capability at 10% DOD. Suitable for CMOS/RTC backup, ESL, and embedded sensor applications requiring a rechargeable 20mm coin cell. Available in bulk from European stock.

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Product Features

  • 40 mAh — maximum capacity at the 2.0mm height in the 20mm series — 33% more energy than the ML2016 for the same footprint diameter; extends operating intervals between charge cycles and reduces risk of backup power exhaustion in low-average-current embedded systems
  • 400 cycles at 10% DOD / 180 cycles at 20% DOD — multi-year rechargeable service life for OEM products with integral charging circuits; eliminates recurring battery replacement costs in sealed 20mm coin cell sockets
  • Compatible with CR2020 and ML2016 footprint sockets — direct rechargeable upgrade path for existing 20mm designs; supports CMOS backup, RTC, memory-hold, and low-power sensor applications
  • -20°C to +60°C operating range — cycle count and capacity retention verified across the full industrial temperature range; suitable for outdoor, transportation, and industrial control deployments
  • IEC 60086 & RoHS compliant — EU and UK market qualified; applicable to the full range of industrial, medical, and smart infrastructure OEM supply chains

Technical Details

battery-type ML2020
chemistry Lithium Aluminium (Li-Al)
nominal-voltage-v 3V
nominal-capacity-mah 40 mAh
standard-current-ma 0.2 mA
charge-discharge-cycle 400 (10%DOD) / 180 (20%DOD)
max-dimensions-mm ø20.0 x 2.0 mm
weight-approx-g 2.2 g
shelf-life 5 Years
working-temperature-%e2%84%83 -20°C to +60°C

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