Battery

Safety

• Batteries produce explosive gas. No flames, sparks, or smoking near the battery. Shield your face and eyes. Ventilate the area.
• Batteries contain sulfuric acid. Flush skin or eyes with water for at least 15 minutes and get medical attention. If acid is swallowed, call a physician immediately.
• Posts and related parts contain lead. Wash your hands after handling.
• Keep batteries away from children.
• Reinstall the battery cover or shield after cleaning or replacement.
• No terminal-nut torque is printed, so none is added. No cable-off order is printed in the section that was read, so none is invented.

Symptoms

• Slow cranking or a battery that will not hold a charge is a reason to test it and match the parts table. It is not a reason to pick the Premium number for a base truck.
• Corrosion on the posts is the case the manual tells you to clean. It still does not print a terminal torque.

Diagnosis

1. The 3.5L table lists one battery, BXT-48H6-610. The other gasoline tables list a second number for King Ranch, Lariat, and Premium.
2. The truck may have more than one battery. Disconnecting one battery does not disconnect the electrical system. The warning says to disconnect the cables from all batteries.
3. After a disconnect, the engine has to relearn idle and fuel trim. Flexible-fuel trucks also relearn ethanol content.

Tools

• Battery carrier or hands on opposite corners

  The warning says excessive pressure on the end walls of a plastic-cased battery can push acid out of the vent caps.

• Wire brush and a baking-soda solution

  The manual says to remove the cables and clean corrosion with a wire brush, and that you can neutralize acid with baking soda and water.

Specifications

Steps

1. 01Match the parts table

   Use the battery line for the engine, and the trim line when the table prints one.

   1. 2.7L EcoBoost: BAGM-48H6-760, and BAGM-94RH7-800 on King Ranch, Lariat, and Premium.
   2. 3.5L: BXT-48H6-610 only.
   3. 3.5L EcoBoost and 5.0L: BXT-48H6-610, and BXT-94RH7-730 on King Ranch, Lariat, and Premium.
   4. The replacement battery has to match the electrical requirements of the vehicle. These are maintenance-free batteries. The manual says they normally do not need water.

2. 02Clean corrosion without inventing a torque

   If you see corrosion, remove the cables and clean them with a wire brush. Neutralize acid with baking soda and water. Keep the top of the case clean and dry.

   1. The section does not say which cable comes off first and does not print a nut torque.
   2. Put the cover or shield back on.

3. 03Relearn idle and fuel trim

   After the battery is disconnected or replaced, the powertrain computer has to relearn idle and fuel trim.

   1. Parking brake on, shift to Park or Neutral, accessories off.
   2. Press the brake and start the truck. While it warms up, reset the clock, the power-window bounce-back, and the radio presets. The manual points at the audio and windows chapters for those resets.
   3. Idle at least one minute.
   4. Drive at least 10 mi (16 km).
   5. Flexible-fuel trucks running E85 can start poorly until ethanol content is relearned.

Common mistakes

• Installing the King Ranch, Lariat, or Premium number on a truck the table does not list it for.
• Using the 2020 gasoline pair BAGM-48H6-760 and BAGM-94RH7-800 on a 2017 5.0L. The 2017 5.0L table prints BXT numbers.
• Lifting a plastic-cased battery by the end walls.
• Skipping the relearn drive and then blaming the idle.
• Adding electrical accessories without expecting the manual's warning about low-voltage battery life.

Parts and tools

Outbound links only. BaySheet does not sell parts. Confirm fitment on the retailer page. Amazon links are searches for a real part name plus this vehicle. Tool rows do not get a product search. The search is not a part number.

• Part

  Motorcraft battery from the engine and trim line

  Numbers are in the specifications table on this page. A suffix is not a BCI group size. The manual does not print a group size.

  2017 F-150 Motorcraft battery numbers (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)

• Tool

  Battery carrier or hands on opposite corners

  The warning says excessive pressure on the end walls of a plastic-cased battery can push acid out of the vent caps.

  Battery lifting warning in the 2017 F-150 owner's manual (opens in a new tab)

• Tool

  Wire brush and a baking-soda solution

  The manual says to remove the cables and clean corrosion with a wire brush, and that you can neutralize acid with baking soda and water.

  Battery cleaning note (opens in a new tab)

Questions

Sources

• 2017 F-150 Owner's Manual, second printing, edition date July 2016, changing the 12V battery (opens in a new tab). Ford Motor Company. Published 2016-07-01. Read 2026-10-15.

Checklist and email notes

The maintenance checklist is on the site now. The email list is not sending yet, so this box will not store an address.

Other repairs on this 2017 F-150

All Ford F-150 repairs

Other years of this Ford F-150

Same repair, different model year. Use the page that matches the truck or car in the driveway. A figure on one year is not a figure for the next.

This repair on other vehicles

These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.