12V Auxiliary Battery labor time

0.7 hrtypical

0.5 to 0.7hours on most vehicles

$105typical labor at $150/hr

12V Auxiliary Battery takes about 0.7 hr of shop labor on a typical vehicle. Across 1,075 vehicle and engine combinations from 32 makes, most fall between 0.5 and 0.7 hours. Tesla, Mercedes-Benz and Porsche vehicles tend to take the longest; Fiat, Mini and Honda the least. The exact time depends on your car, so look yours up below or pick it on the home page.

Shop labor rate

per hour

Enter a rate to see the labor cost of each job. Many US shops charge somewhere between $100 and $200 an hour.

At $150 an hour, labor for this job is usually $75 to $105, about $105 on a typical vehicle. Parts are extra.

How long it takes across all vehicles

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

Hours, in half hour steps. Each bar is how many vehicle and engine combinations fall in that range.

12V Auxiliary Battery time by make

Make	Typical	Most vehicles	Vehicles
Tesla	0.7 hr	0.7 to 0.7	131
Mercedes-Benz	0.7 hr	0.7 to 0.7	102
Porsche	0.7 hr	0.7 to 0.7	93
Audi	0.7 hr	0.7 to 0.7	65
BMW	0.7 hr	0.7 to 0.7	65
Cadillac	0.7 hr	0.7 to 0.7	19
Lincoln	0.7 hr	0.7 to 0.7	18
Volvo	0.7 hr	0.7 to 0.7	17
Infiniti	0.7 hr	0.7 to 0.7	9
Genesis	0.7 hr	0.7 to 0.7	5
Ford	0.5 hr	0.5 to 0.7	65
Hyundai	0.5 hr	0.5 to 0.5	59
Kia	0.5 hr	0.5 to 0.5	56
Rivian	0.5 hr	0.5 to 0.5	46
Polestar	0.5 hr	0.5 to 0.5	42
Toyota	0.5 hr	0.5 to 0.5	42
Nissan	0.5 hr	0.5 to 0.5	38
Pontiac	0.5 hr	0.5 to 0.6	37
Chevrolet	0.5 hr	0.5 to 0.5	35
Volkswagen	0.5 hr	0.5 to 0.5	34
Lucid	0.5 hr	0.5 to 0.5	24
GMC	0.5 hr	0.5 to 0.5	21
Honda	0.5 hr	0.5 to 0.5	13
Mini	0.5 hr	0.5 to 0.5	11
Fiat	0.5 hr	0.5 to 0.5	7

Other ev battery repairs

Battery Cooling System Service2.0 hr typical
Battery Thermal Management Module4.6 hr typical
DC-DC Converter3.3 hr typical
High Voltage Battery Module R&R12.7 hr typical
Battery Disconnect Service0.7 hr typical
High Voltage Battery Pack R&R8.8 hr typical
Battery Management System (BMS)4.6 hr typical
Battery Junction Box3.3 hr typical

Hours are what a professional technician takes with the right tools, the same way shops quote jobs. Figures come from the Open Labor Project database.