Uniross ML1225 Lithium Rechargeable Coin Cell Battery | Industrial Bulk Supply

Model No: ML1225

Uniross ML1225 lithium-aluminium rechargeable coin cells deliver 28 mAh at 3V in a 12.5mm diameter, 2.5mm profile — 56% more capacity than the ML1220 in the same footprint diameter with a marginally increased 0.5mm height. The ML1225 is the preferred specification for 12.5mm rechargeable coin cell sockets where maximum energy storage is the design objective and the 2.5mm height is mechanically acceptable. Rated for 300 cycles at 10% DOD and operating reliably from -20°C to +60°C, it is suitable for OEM embedded systems, backup power applications, and any 12.5mm rechargeable coin cell socket requiring extended cycle life. Available in bulk from European stock.

Recommended for high drain devices

Glucometers
Glucometers
Hearing Aids
Hearing Aids
Tyre pressure monitoring systems
Tyre pressure monitoring systems
Key Fobs
Key Fobs
Fitness Trackers
Fitness Trackers

Product Features

  • 28 mAh — maximum capacity in the 12.5mm rechargeable format — 56% more energy than the ML1220 in the same footprint diameter; extends device operating intervals between charge cycles and reduces the risk of backup power exhaustion in low-duty embedded systems
  • 300 cycles at 10% DOD / 120 cycles at 20% DOD — multi-year rechargeable service life in OEM products with integral charging; eliminates the field replacement cost associated with primary coin cells over a 3–5 year product lifecycle
  • 3V stable output — compatible with CR1225 footprint designs — rechargeable drop-in for 12.5mm sockets; supports CMOS/RTC backup, ESL, and memory-hold circuits without hardware redesign
  • -20°C to +60°C qualified — cycle performance and capacity retention confirmed across the full industrial temperature range; suitable for outdoor and uncontrolled-environment deployments
  • IEC 60086 & RoHS compliant — EU and UK market qualified; applicable to medical device, industrial automation, and smart building OEM programmes

Technical Details

battery-type ML1225
chemistry Lithium Aluminium (Li-Al)
nominal-voltage-v 3V
nominal-capacity-mah 28 mAh
standard-current-ma 0.1 mA
charge-discharge-cycle 300 (10%DOD) / 120 (20%DOD)
max-dimensions-mm ø12.5 x 2.5 mm
weight-approx-g 0.9 g
shelf-life 5 Years
working-temperature-%e2%84%83 -20°C to +60°C

Get In Touch

Our team will help you find the battery solutions that will fit your business needs.