The high-voltage battery in the hybrid is not put under the same kind of stresses as it is on the energi, so you should not see meaningful capacity loss, even on the 2013s which are pushing 9 years old now. However, you should probably be concerned about the possibility of transmission failure. It's a somewhat common occurrence in the early

Fuel Capacity / Gas Tank Size. 13.5. Aux Fuel Tank Capacity (gallons) 2014 Ford C-Max Energi plug-in hybrid; Lithium ion battery. Battery saver.
The amount of the federal tax credit for plug-in hybrids is based on battery capacity for a given vehicle. The C-MAX Energi qualifies for $3,750 in federal incentives, and California’s program offers another $1,500 in rebates to buyers in that state.
The Ford C-Max Energi Plug-In Hybrid has a lot of appeal for families and it's exceptionally fuel-efficient, drives smartly and has a stylish and well-made interior. Battery capacity 7.6 kWh
C-MAX C-Max (2013-2018) Engine: Capacity: Change interval: Oil type: C-Max 2.0 Energi: 4,3 L: Check 1 months, 10000 miles/ 12 months-C-Max 2.0 Energi: 4,3 L: Check 1 months, 10000 miles/ 12 months: 0W-20: C-Max 2.0 Energi: 4,3 L: Check 1 months, 20000 miles/ 24 months: 0W-20: C-Max 2.0 Hybrid: 4,3 L: Check 1 months, 10000 miles/ 12 months-C-Max
Compare MSRP, invoice pricing, and other features on the 2013 Ford C-Max Energi and 2013 Toyota Prius. Battery Capacity-Battery Capacity-Battery Capacity. 188 hp. Horsepower. 98 hp. Horsepower-
3eXppfU. 970 921 91 94 651 428 336 87

ford c max energi battery capacity