The Ford Transit uses a 12-volt lead-acid battery (often AGM) for standard engine starting in non-electric models, while the all-electric Ford E-Transit relies on a high-voltage lithium-ion traction battery for propulsion, plus a separate 12-volt auxiliary battery for onboard systems.
Standard Ford Transit (internal-combustion engine) battery
Most non-electric Transits depend on a conventional 12-volt starter battery to crank the engine and power accessories. In many commercial-focused versions, an absorbed glass mat (AGM) lead-acid battery is used for improved durability and cold-crank performance.
Key characteristics you’re likely to encounter include:
- Type: 12-volt lead-acid battery, commonly AGM (sealed).
- Capacity: typically around 60–80 Ah, depending on engine variant and electrical loads.
- Size: commercial-grade group sizes chosen to fit Transit installations; replacement must match Ford’s specifications.
- Maintenance: AGM variants are generally maintenance-free, but terminals should be kept clean and tight.
- Lifecycle: most users replace the 12V battery every 3–5 years under normal use; harsher climates or heavy electrical loads can shorten life.
In practice, fleet operators sometimes choose higher-capacity or reinforced batteries to handle extra lighting, telematics, and other onboard gear common to commercial use.
Ford E-Transit battery system (electric)
The electric version of the Transit uses a different energy store: a high-voltage lithium-ion traction battery pack that powers the electric motor. A separate 12-volt auxiliary battery remains to run low-voltage systems, charged from the main pack through a DC-DC converter.
Key points about the E-Transit energy store include:
- Voltage and chemistry: high-voltage lithium-ion battery pack (nominally around 400 V) designed for propulsion; chemistry is typical of modern EV packs.
- Capacity options: offered with different pack sizes to balance range and payload; exact capacities vary by market and model year.
- Location: pack is mounted under the floor to optimize space and weight distribution.
- Charging: supports AC charging (household/Depot) and DC fast charging where available; charging rate depends on equipment and regional standards.
- Auxiliary battery: a 12-volt system powers lights, infotainment, and other systems via a DC-DC converter from the high-voltage pack.
The exact capacity and official range figures depend on the vehicle’s market, configuration, and model year, so consult Ford’s specifications for your VIN to get precise numbers.
Maintenance and safety notes
High-voltage systems in the E-Transit require trained technicians and proper safety procedures. For standard 12-volt batteries, routine care applies just as with any other vehicle.
- Do not attempt to service the high-voltage traction battery yourself; rely on authorized Ford technicians for HV work.
- Keep the 12-volt battery terminals clean and free of corrosion; check the alternator and charging system regularly.
- For the 12-volt battery in any Transit, use a smart charger if the vehicle will be parked for extended periods.
- If you notice slow starts or electronics malfunctions, have the battery and related systems tested with OEM tooling.
Always refer to Ford's official documentation or a dealer for exact specifications and service procedures for your vehicle’s year and market.
Summary
In short, standard Ford Transits rely on a 12-volt lead-acid (often AGM) battery for starting and electronics, while the all-electric E-Transit uses a high-voltage lithium-ion traction battery for propulsion, complemented by a separate 12-volt auxiliary battery. Battery configurations vary by model year and market, so check your vehicle’s specifications for precise numbers and replacement guidance.
What kind of battery does a 2017 Ford Transit 250 take?
DieHard Platinum AGM – Battery : H6 Group Size, 760 CCA, 950 CA, 120 Minute Reserve Capacity (Part No. H6-AGM)
What battery does the Ford Transit use?
Most Transit 250 models use a Group 65 or H6 battery, depending on engine and electrical configuration.
Why are there two batteries on a Ford Transit?
The seller said that the back battery is the starter battery, and the forward is for lights and such in the back.
What kind of battery does a 2015 Ford Transit 250 take?
Value Battery – Battery : H6 Group Size, 615 CCA, 765 CA, 95 Minute Reserve Capacity (Part No. 48H6-V)