2019–2025 T1XX (4th generation)
2019–2025 Chevrolet Silverado 1500 Battery Size (BCI Group and CCA)
The 2019–2025 Chevrolet Silverado 1500 uses a BCI group 48 (H6) battery. Fitment, replacement notes, and what to check before you buy.
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Quick answer
2019–2025 Chevrolet Silverado 1500 battery specifications
High confidence| Spec | Value |
|---|---|
| BCI group size | 48 (H6) |
| Battery type | AGM |
| AGM required | Factory AGM |
| Location | Engine bay, driver side |
Trucks with auto stop/start (most retail configurations) use a Group 48/H6 AGM (~70 Ah, 760 CCA) and should be replaced with AGM only; fleet trucks without stop/start use a flooded H6. Some diesels add a second (auxiliary) battery. No scan-tool registration required, but disconnect procedures apply. See the manual.
Which Chevrolet Silverado 1500 model years does this cover?
These battery specifications apply to every Chevrolet Silverado 1500 built from 2019 through 2025 — the T1XX (4th generation), full-size half-ton pickup (regular, double, crew cab); interior refresh 2022. Nothing in this specification changes between those model years. Pick your year for the engines it offered, what changed that year, and the problems recorded against it.
What changed during the 2019–2025 Chevrolet Silverado 1500
- 2019Generation launch: 2.7L Turbo debuts, 5.3L/6.2L gain DFM, 4.3L V6 and 6-speed carry over on base trims
- 20203.0L Duramax LM2 diesel arrives; 6.2L/diesel use the 10L80 10-speed
- 2021Last year for the 4.3L V6 (fleet/base); multi-flex tailgate spreads
- 2022Major refresh: all-new interior with 13.4-in Google infotainment, ZR2 flagship debuts, Super Cruise on High Country; LED lamps standard on most retail trims
- 20232.7L becomes 'TurboMax' (430 lb-ft); LZ0 Duramax replaces LM2 (305 hp, 200k-mi oil-pump belt)
- 2024–2025Carryover years; 2021–2024 6.2L trucks swept into recall 25V-274 in April 2025
2019–2025 Chevrolet Silverado 1500 battery: common questions
What size battery does a 2019–2025 Chevrolet Silverado 1500 take?
- BCI group 48 (H6). Group size is a physical dimension and terminal-position standard, so a battery from a different group may not clamp down or may put the terminals on the wrong side.
Does the 2019–2025 Chevrolet Silverado 1500 need an AGM battery?
- The factory battery is an AGM type. Match the type when you replace it.
Where is the battery on a 2019–2025 Chevrolet Silverado 1500?
- Engine bay, driver side.
Does a 2019–2025 Chevrolet Silverado 1500 need the battery registered after replacement?
- Trucks with auto stop/start (most retail configurations) use a Group 48/H6 AGM (~70 Ah, 760 CCA) and should be replaced with AGM only; fleet trucks without stop/start use a flooded H6. Some diesels add a second (auxiliary) battery. No scan-tool registration required, but disconnect procedures apply. See the manual.
Sources
- GM TechLink, official 2019/2020 engine oil capacity chart (all T1XX engines)
- NHTSA Part 573 report, recall 25V-274, 6.2L L87 engine failure
- GM Authority, Silverado/Sierra 6.2L L87 recall coverage
- Blauparts, 2020–2025 Silverado 3.0L LM2/LZ0 oil change kit (dexosD 0W-20)
- Duramax Forum, LM2 oil pump belt 150,000-mi service
- Costa Oils, 2020 Silverado 2.7L (L3B) oil change guide (PF66)
- AutoZone, 2020 Silverado 1500 battery fitment (Group 48/H6, AGM)
- Goodyear, 2019 Silverado Custom Trail Boss OE tire (LT275/65R18)
- Wheel-Size.com, 2019 Silverado 1500 OE fitments
- XenonPro, 2019–2021 Silverado bulb size chart (H11 low / 9005 high, halogen trims)
- Cox Chevrolet, Silverado 1500 towing capacity by engine/year