2020 Ram 1500 Battery Size & Group
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Quick Answer
- BCI Group Size: H7/94R
- CCA Rating: 800-850 CCA (minimum, can vary by trim/engine)
- Reserve Capacity: 140-160 minutes
- AGM vs. Flooded: Primarily AGM for most trims, especially those with start/stop technology. Some base models might use flooded.
- Terminal Layout: Top post, typically positive on the right.
- Physical Dimensions: Approximately 12.4" L x 6.9" W x 7.5" H
- Dual-Battery Setup: Not standard on gasoline 2020 Ram 1500 models. Diesel versions (EcoDiesel) may have a different setup, but general 1500 gas models do not.
Replacement Battery Options
For your 2020 Ram 1500, especially if it's equipped with start/stop technology, an AGM (Absorbent Glass Mat) battery is highly recommended. Below are some popular replacement options, though part numbers can vary by retailer:
- Interstate: H7-AGM (or MTZ-94R/H7 for their premium AGM line)
- Optima: Optima H7 (YellowTop or RedTop, depending on accessory load and use)
- DieHard: Platinum AGM H7/94R
- Odyssey: ODP-AGM94R H7 (or Extreme Series PC1350)
- ACDelco: 94RAGM (or 48AGM for vehicles that might use it)
AGM vs. Flooded — Which Does This Vehicle Need?
For the 2020 Ram 1500, particularly models equipped with the eTorque mild-hybrid system and/or start/stop technology, an AGM battery is required. The advanced electrical systems and the demands of frequent engine restarts in start/stop vehicles put significant strain on a battery. AGM batteries are designed to handle these deeper discharge cycles and provide a more consistent power supply. Attempting to use a traditional flooded lead-acid battery in such a vehicle can lead to premature battery failure, issues with electrical system functionality, and potentially fault codes.
Even for 2020 Ram 1500 models without start/stop, an AGM battery offers superior performance, longer life, and better resistance to vibration and extreme temperatures compared to a conventional flooded battery. While a traditional flooded battery might technically fit and work for a short period in base models without start/stop, it
More specs for the 2020 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
2020 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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