2016–2019 Chevrolet Volt
By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026
Save $120 by doing it yourself! Shop cost: $300
Quick answer: 12V Battery Replacement on a 2016–2019 Chevrolet Volt is rated Easy and takes about 30-90 minutes. You'll need 3 tools for this job, and parts cost about $180. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name | Part Number | Price | Buy |
|---|---|---|---|
| Replacement 12-volt battery for 2016-2019 Chevrolet Volt; verify group size, CCA, terminal layout, and VIN fitment | — | $180.00 | |
| Anti-corrosion terminal protectant or felt washers (optional) Optional | — | $8.00 |
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Follow these steps carefully
This guide covers only the 12V battery: a BCI Group 47 (H5) AGM unit of 640-680 cold-cranking amps. The owner's manual specifies AGM — installing a conventional flooded battery will shorten its life. A weak 12V battery causes no-start and a cascade of warning messages.
Open the rear hatch and lift the load floor to expose the 12V battery — on the gen-2 Volt it is a quick job needing no trunk disassembly. Put on gloves and eye protection. WARNING: never touch any orange high-voltage cable or component.
I check polarity before buying. Reversed terminals mean cables that don't reach, and that's a miserable discovery in the parking lot.
Photograph the terminal positions, the hold-down bracket, and the vent tube routing — the AGM battery is vented to the outside and the new one must be vented identically. Check both cable clamps for corrosion before loosening anything.
With the 10mm socket, loosen the negative (-) cable clamp first and lift it off the post, tucking it where it cannot touch a terminal. Keep tools clear of the nearby high-voltage components and orange wiring. Never let a wrench bridge the two 12V posts.
Remove the hold-down bracket bolt with the 13mm socket and lift the bracket clear, then disconnect the vent tube from the battery. Lift the old Group 47 AGM battery straight up and out — about 40 pounds — and set it on the ground.
Set the new Group 47 AGM battery into the compartment in the same orientation and reconnect the vent tube firmly to its port. Reinstall the hold-down bracket and tighten the 13mm bolt securely.
Press the brake and the power button to power up the Volt and confirm it boots normally with no 12V or charging warnings. Cycle the lights and infotainment to confirm the electronics behave. Take the old AGM battery to a parts store for recycling.
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
2016–2019
2016–2019
2011–2015
2011–2015
2011–2015
2011–2015
Acura RL · 2005–2012
Acura ZDX · 2010–2013
Audi A8 · 2011–2018
Audi S4 · 2010–2024
Audi TT · 2008–2023
BMW 6 Series · 2004–2018
Buick Cascada · 2016–2019
Buick Century · 1997–2005
