Medical Power

Resonetics® designs and manufactures the broadest range of electro-chemistries for implantable applications, including lithium ion, lithium carbon monofluoride (Li/CFx), and lithium carbon monofluoride-manganese dioxide hybrid (Li/CFx-MnO2). We finely tune every battery to each customer’s application, offer primary and rechargeable battery options, and all service is backed by ISO 13485 certification, comprehensive R&D, and manufacturing capabilities.

Product Name Part Number Voltage (V) Capacity @ R.T. (mAh) Width (mm) Height (mm) Thickness (mm) Weight (grams)
Lithium Ion Contego 1.5 95-1720 3.0–4.1 1.25 2.9Ø 7.98 Cylindrical 0.15
Lithium Ion Contego 3 D-00122 3.0–4.1 2.8 2.9Ø 12.2 Cylindrical 0.25
Lithium Ion Contego 20 95-1765 3.0–4.1 20 12.0 10.2 4.5 1.5
Lithium Ion Contego 50 D-00020 3.0–4.1 50 12.0 18.5 4.5 2.5
Lithium Ion Contego 60 D-00040-1 3.0–4.1 60 12.0 21.3 4.5 3.0
Lithium Ion Contego 65 95-1655 3.0-4.1 65 12.0 18.5 4.5 2.6
Lithium Ion Contego 100 95-1865 3.0-4.1 100 12.0 24.2 4.5 3.5
Lithium Ion Contego 140 95-1420 3.0-4.1 140 14.8 26.2 6.9 6.7
Lithium Ion Contego 200 95-1862 3.0-4.1 200 17.0 35.1 5.5 9.5
Lithium Ion Contego 225 95-1399 3.0-4.1 225 14.8 38.9 6.9 9.8
Lithium Ion Contego 325 95-1250 3.0-4.1 325 22.9 43.2 6.9 17.5
Lithium Ion Contego 440 95-1620 3.0-4.1 440 22.9 41.6 6.9 19.1
Primary Lithium Contego P65 95-1735 2.0–3.4 65 5.9Ø 10.0 Cylindrical 0.6
Primary Lithium Contego P200 95-1810 2.0–3.3 200 9.5 21.3 4.4 1.75
Primary Lithium Contego P1400 D-00160 2.0-3.4 1400 22.9 30.5 7.5 13.3

Li-Ion Chemistry

Preferred for their rechargeability, these batteries deliver the highest energy density and discharge rate among rechargeable options. They are available in configurations ranging from under 3 mAh to 440 mAh and are commonly used for:

  • Neuromodulation
  • Cochlear implants
  • Drug delivery
  • Ventricular assist devices

Li/CFx-MnO2 Chemistry

With medium energy density, high-rate discharge, and excellent shelf life, these batteries provide reliable performance. They are commonly used for:

  • Pacemakers
  • Implantable cardioverter-defibrillators
  • Cardiac and other monitoring devices

Li/CFx Chemistry

With the highest energy density and low- to medium-rate discharge, these batteries offer excellent shelf life. They are available in configurations ranging from under 200 mAh to over 9.5 mAh and are commonly used for:

  • Pacemakers
  • Neuromodulation
  • Drug delivery
  • Cardiac and other monitoring devices

Wireless Charging

Resonetics has partnered with Resonant Link to deliver industry-leading wireless charging solutions. Their 2.5W Titanium-Compatible Wireless Charging Platform for Implantable Medical Devices features the Resonetics Contego 440 mAh lithium-ion battery.

Related Resources

BLOG

September 16, 2025

COMING SOON: The Contego 100 mAh Battery

Introducing the Contego 100 mAh Battery Resonetics® is expanding its portfolio of implantable battery solutions with the Contego 100 mAh…

Read More

BLOG

September 3, 2025

COMING SOON: The Contego 200 mAh Battery

Introducing the Contego 200: A New Off-the-Shelf Battery from Resonetics We’re excited to expand our Contego line of off-the-shelf implantable…

Read More

WHITEPAPERS

March 29, 2023

Lithium Ion Cycling Charge and Discharge

This paper focuses on implanted medical cells, so we’ve held operating temperatures at 37°C to simplify matters. Storage of Resonetics…

Read More