Battery technology is a vehicle requirement, not a style choice. Confirm the original part and charging system before selecting a replacement.
Browse exact battery part numbers and group dimensions.
Conventional flooded lead-acid
Conventional flooded automotive batteries. A group-size match does not establish suitability for a start-stop system.
Replacement boundary: Use only where approved for the exact vehicle; no default downgrade from AGM/EFB.
Enhanced Flooded Battery
Enhanced flooded technology used in specified cycling/start-stop applications.
Replacement boundary: Retain the OEM technology requirement; AGM substitution requires application and charging-system approval.
Absorbent Glass Mat
Lead-acid technology using an absorbent glass mat separator; not a lithium battery.
Replacement boundary: An AGM-required vehicle must not receive an unapproved flooded substitute. Check charger mode and OEM instructions.
OEM lead-acid, subtype not established
The source identifies lead-acid but does not establish flooded, EFB or AGM subtype.
Replacement boundary: Do not infer AGM or FLA from capacity, appearance or generic model name.
OEM-specific low-voltage lithium-ion
An OEM-specific low-voltage system; not automatically interchangeable with a conventional 12V lead-acid battery.
Replacement boundary: Professional/OEM verification. Nominal voltage, electronics and installation procedure are vehicle-specific.
High-voltage traction battery
Traction packs are outside the consumer starter/auxiliary-battery fitment dataset.
Replacement boundary: No DIY replacement instructions or generic Amazon fitment recommendations.
Before ordering a battery
Check the actual battery position, chemistry, voltage, terminals, tray, hold-down, vent, CCA requirement and any BMS registration procedure. Group size alone does not approve a replacement SKU. High-voltage traction batteries are outside this guide.
Sources and scope
- VARTA Automotive / Clarios — EFB and AGM (checked 2026-11-01)
- VARTA Automotive / Clarios — Start-stop battery replacement (checked 2026-11-01)
- Tesla — Model 3 North America: replacing the lead-acid low-voltage battery (checked 2026-11-01)
- US EPA — Used Household Batteries (checked 2026-11-01)
Research checked November 2, 2026. A source-observed size is not final product fitment. Confirm the actual vehicle and current manufacturer guidance.