Li-ion (NMC/LMO)
Ford C-Max Hybrid Lithium-ion Battery (2013-2018)
The Ford C-Max Hybrid Lithium-ion Battery (2013-2018) is the high voltage battery in the Ford C-Max Hybrid (2013-2018).
Specifications
| Chemistry | Li-ion (NMC/LMO) |
|---|---|
| Cell maker | Panasonic |
| Nominal voltage | 281.2 V |
| Capacity | 5 Ah |
| Energy | 1.4 kWh |
| Cooling | Active forced air (fan cooled) |
| Location | Under floor of rear seat / trunk; cargo area behind the rear seat (ERG) |
| Weight | 34.5 kg |
Cars That Use It
- Ford C-Max Hybrid 2013-2018 US market; HF35 eCVT powersplit, 2.0L Atkinson Run the checklist
What Goes Wrong
Reported failures, each from a source listed below, as of October 7, 2026.
Symptoms
- The 2018 C-Max Hybrid owner's manual says the air-cooled high-voltage battery draws cabin air through vents behind the rear seats / in the package tray and that these openings should be kept free of objects that block airflow. (fordservicecontent.com: 2018-Ford-C-Max-Hybrid-Owners-Manual-version-2_om_EN-US-EN-C, 2026-10-07)
Warranty
Ford's Hybrid Car and Electric Vehicle warranty guides for the 2013-2017 model years list Hybrid/Electric Unique Component Coverage of 8 years or 100,000 miles, whichever comes first, covering the high-voltage battery, battery pack fan, BECM and related parts; the guides add 10 years/150,000 miles for the high-voltage battery on vehicles certified as AT PZEV and registered in states that adopted that California warranty. (fordservicecontent.com: 13hybwa2e.pdf, 2026-10-07)
Get This Pack Tested
Do not open it yourself. The pack can hurt you with the car switched off.
Sources
- avt.inl.gov: batteryCMax2158.pdf
- avt.inl.gov: batteryCMax5138.pdf
- avt.inl.gov: fact2013fordc-maxhybrid.pdf
- ford.com: 2015-2018-C-Max-Emergency-Response-Guide.pdf
- ford.com: firstresponder
- fueleconomy.gov: vehicles.csv.zip
- fordservicecontent.com: 2018-Ford-C-Max-Hybrid-Owners-Manual-version-2_om_EN-US-EN-C
- fordservicecontent.com: 13hybwa2e.pdf
- fordservicecontent.com: 14hybwa1e.pdf
- fordservicecontent.com: 2015-Ford-Hybrid-Car-Electric-Vehicle-Warranty-Guide-version
- fordservicecontent.com: 2016-hybrid-Car-Electric-Warranty-version-2_frdwa_EN-US_08_2
- fordservicecontent.com: 2017-Hybrid-Warranty-version-2_frdwa_EN-US_03_2018.pdf
Last updated October 7, 2026. Failure and recall notes are as of that date. Spotted a mistake, or speaking for a maker? Report an error.
Hybrid Battery Test is independent. It is not affiliated with, sponsored by or endorsed by Ford, Panasonic. Names and part numbers are used only to identify the vehicle and the part.