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    Odyssey

ODX-AGM31

$571.99
$571.99
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ODYSSEY Extreme Battery

ODX-AGM31

(31-PC2150S)
(Group 31 with SS 3/8 inch threaded stud terminals and single external vent)

The ODYSSEY Extreme ODX-AGM31 is a BCI Group 31 (stud terminal) Thin Plate Pure Lead (TPPL) AGM battery for working vehicles whose loads never fully shut off: emergency vehicles, work trucks with liftgates, winches, or plows, and fleets running telematics, security camera systems, utility lamps, 12V power receptacles, CPAP circuits in sleeper cabs, and refrigerators or coolers that keep drawing after shutdown.

If you are looking for a Group 31 battery around 1150 CCA and 103 Ah (20-hour) with 220 minutes of reserve capacity, the ODX-AGM31 is the current version of the legacy 31-PC2150S part number.

Small loads add up: per EnerSys parasitic-draw guidance and TMC RP140A, a combined 5-amp draw over a 60-hour weekend equals a 300 Ah discharge. A weekend sit has little impact, but a week of continuous draw can pull a battery below 10.5 volts, and if that happens routinely, performance and life are impacted. The ODX-AGM31 is built for exactly that duty: the highest cranking output in the WCB Group 31 lineup, deep-discharge recovery, extreme vibration resistance, fast recharge, and up to 400 cycles at 80% depth of discharge per EnerSys published ratings.

Terminal type matters on Group 31: the ODX-AGM31 uses 3/8 inch stainless stud terminals and does not fit SAE-post applications — SAE-post Group 31/31A vehicles take the ODX-AGM31A. Stud and SAE Group 31 batteries are never interchangeable. For emergency vehicles, mission-critical uptime, and vehicles that cannot afford a no-start, ODYSSEY Extreme is the floor — for daily drivers with stock electrical loads, the ODP-AGM31 covers the same Group 31 footprint. The ODX-AGM31 is an automotive and commercial battery and is not positioned for powersport applications.

Confirm your vehicle’s fitment with WCB’s battery finder at wcbatteries.com.

View Product Details

Dimensions

Length13.0 in
Width6.8 in
Height (terminals incl.)9.5 in
Height (container)8.5 in
Weight77.8 lbs

General

Battery TechnologyTPPL AGM
BCI Group Size31
Warranty4 years

Electrical

Voltage12 V
Cold Cranking Amps (CCA)1150 A
Pulse HCA 5sec (PHCA)2150 A
Nominal Capacity (20Hr)103 Ah
Reserve Capacity220 min
Terminal Type3/8-16" Stud
Operating Temperature-40°F to 176°F
Cycle Life at 80% DoD400 cycles
Also known as: 31-PC2150S · PC2150S

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✓ Best for

Working vehicles that take a BCI Group 31 battery and whose loads never fully shut off: emergency vehicles (police, fire, ambulance), work trucks with liftgates, winches, or plows, and fleets running telematics, security camera systems, utility lamps, 12V power receptacles, CPAP circuits in sleeper cabs, and refrigerators or coolers that keep drawing after shutdown.
ODYSSEY Extreme is the floor for emergency vehicles, mission-critical uptime, and vehicles that cannot afford a no-start. The ODX-AGM31 is the current version of the legacy 31-PC2150S part number.

✕ Not for

Not for powersport applications — the ODX-AGM31 is an automotive and commercial battery.
Not for SAE-post Group 31/31A applications — the ODX-AGM31 uses 3/8 inch stainless stud terminals. SAE-post vehicles take the ODX-AGM31A; stud and SAE Group 31 batteries are never interchangeable.
Daily drivers with stock electrical loads are covered by the ODP-AGM31 in the same Group 31 footprint — the ODX-AGM31 is built for continuous-draw duty.

→ Intended for

Fleet manager, upfitter, or owner of a working vehicle in BCI Group 31 whose duty cycle keeps drawing after shutdown, for whom a no-start is an operational failure, not an inconvenience.

Many Kenworth T800 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Kenworth W900 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Freightliner Cascadia models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Freightliner Columbia models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Freightliner M2 106 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Peterbilt 379 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Peterbilt 378 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many International 4700 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many International 4900 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Western Star 4900 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Ford F-650 or F-750 models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Ford L9000 or LT9000 series models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Volvo VNL, VN, or VHD models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Sterling A9500, L9500, or Acterra models use a BCI Group 31 battery, though the exact group depends on the year, engine, and trim — confirm the exact fit for your specific year, engine, and trim with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
Many Case 580M backhoe loader models use a BCI Group 31 battery, though the exact group depends on the model year and configuration — confirm the exact fit for your specific model year and configuration with WCB's battery finder at wcbatteries.com. If the application carries loads that keep drawing after the ignition is off — telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the deeper-reserve option for the Group 31 footprint is the Odyssey Extreme ODX-AGM31, a TPPL (Thin Plate Pure Lead) AGM rated 1150 CCA, 103 Ah (20-hour), and 220 minutes of reserve capacity, with 3/8-16 in. stud terminals and a rated operating range of -40°F to 176°F. Its absorbed-electrolyte construction delivers vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide.
For a Group 31 application with high parasitic draw — loads that keep drawing after the ignition is off such as telematics, CPAP circuits, satellite units, in-cab refrigerators and coolers, utility lamps, liftgates, or 12V accessories — the Odyssey Extreme ODX-AGM31 is the deeper-reserve choice: 1150 CCA, 103 Ah (20-hour), 220 minutes of reserve capacity, 3/8-16 in. stud terminals, and a rated operating range of -40°F to 176°F. The TPPL (Thin Plate Pure Lead) AGM design uses absorbed electrolyte for vibration resistance and consistent voltage output under sustained accessory loads. Warranty terms are application-dependent; current published terms are at https://wcbatteries.com/pages/odyssey-warranty-policy. West Coast Batteries ships nationwide — confirm your exact fitment with the battery finder at wcbatteries.com.