2015 Ram 1500 Battery Size & Specs
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Quick answer
- BCI Group Size: H7 (also called 94R)
- Cold Cranking Amps (CCA): 730-800
- Reserve Capacity: 130-140 minutes
- Battery Type: AGM (Absorbent Glass Mat) is highly recommended, especially for trucks with start-stop technology or high accessory loads.
- Terminal Layout: Right-hand positive (standard for this group size)
- Physical Dimensions: Approximately 12.4" L x 6.9" W x 7.5" H
Replacement battery options
- Interstate: MTX-94R/H7
- Optima: DH7 YellowTop
- DieHard: Platinum AGM 94R/H7
- Odyssey: 94R-850
- ACDelco: 94RAGM
AGM vs flooded — which does this vehicle need?
The 2015 Ram 1500 came from the factory with an AGM battery. It is strongly recommended to replace it with another AGM battery. AGM batteries are better suited for the high electrical demands of modern vehicles, especially those with features like electronic power steering and numerous computer modules. They also offer better vibration resistance and are completely sealed, preventing acid spills.
Post-installation relearn / reset procedure
After replacing the battery, you may need to perform a simple relearn procedure to ensure the electronic throttle control system operates correctly. This can typically be done by turning the ignition to the "On" position (without starting the engine) for a few seconds, then turning it off. This allows the vehicle's computer to recalibrate.
Signs of a failing battery
- Slow engine crank
- Dimming headlights when starting
- Warning lights on the dashboard (battery or check engine)
- Corrosion around the battery terminals
Common battery issues for this generation
This generation of Ram 1500s is known for a parasitic draw on the battery, which can cause the battery to drain prematurely. If you experience this, it's a good idea to have a technician perform a parasitic draw test to identify the source of the issue.
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More specs for the 2015 Ram 1500
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2015 Ram 1500 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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