Dean McCrary Kia Service Center · Hattiesburg, MS · The Pine Belt
Kia EV9 Battery Replacement
The 12V Accessory Battery · Never the HV Traction Pack
Dean McCrary Kia sits at the crossroads that gave the Hub City its name — I-59, US-49, and US-11 all meeting a few minutes from the downtown Hub sign, the Saenger Theatre, and the old train depot — and from there we keep Pine Belt drivers moving. Two separate batteries live in the EV9: a small 12V AGM unit running accessories and electronics, and the high-voltage traction battery that actually drives the car. This service sticks strictly to the 12V side; the HV pack falls under Kia's EV battery warranty, not a routine replacement. Factory-trained hands, straightforward pricing, complimentary testing on every visit, and a service logged automatically toward your factory warranty protection right here at our Hattiesburg shop.
12VAGM accessory battery, not the HV pack
Kiafactory-trained technicians
Freebattery testing, every visit
3-5yrtypical 12V battery life, tested not guessed
Paylater — easy service financing
$0recall & software check, every visit
Kia EV9 12V Battery Price & Coupons
Choose your Kia EV9 below for today's 12V battery pricing and coupons — every replacement includes complimentary testing and correct installation at our Hattiesburg shop. Need to break the cost up? Service financing turns it into monthly payments.
Select Your Vehicle to See Specials
Select your vehicle above to see available service specials
✦ Claim This Offer
No obligation. Our service team responds within 1 business hour. We never sell your information — that’s a promise from your neighbors right here in town.
Offer Claimed!
Figures reflect the EV9's 12V accessory battery at our 7124 US Hwy 98 location, before tax and shop supplies. Coupons don't combine with other offers — your advisor can walk you through the full details; proud to serve Hattiesburg and the entire Pine Belt.
More Ways to Save
We're glad to thank the people who keep this community running. These savings apply right on top of current pricing — simply show valid ID at booking. And if timing's the issue, service financing means you can take care of it now and spread the payments out later.
Military Discount
Active-duty, reserve, and veteran service members receive a discount on Kia service work. Show your military ID at check-in and we'll apply it right to your battery replacement.
First Responder Discount
Police officers, firefighters, EMTs, and paramedics receive a first-responder discount on Kia service. Show valid ID at check-in — a small thank-you from one neighbor to another.
Service Now, Pay Later
Break any service or repair into manageable monthly payments through service financing — the application takes just a minute at check-in, and reviewing your options never touches your credit score, wherever in the Pine Belt you're driving in from. See how it works.
What’s Included in EV9 12V Battery Replacement
A single upfront price covers the whole job — the correct AGM battery, a proper install, and a low-voltage electrical system check.
Free Battery Test
Every visit includes a load test, so replacement is based on evidence, not a guess.
Correct Battery Type
We install the correct AGM battery, matched exactly to the EV9's always-on electronics load.
Terminal & Cable Check
We clean corrosion and tighten connections to keep the charge path solid.
Charging System Check
We verify the low-voltage charging system so the new 12V battery actually charges the way it should.
When Does the EV9 Need a New 12V Battery?
How Long the EV9's 12V Battery Actually Lasts
Most 12V AGM batteries hold up for roughly 3 to 5 years. Sustained heat, rather than cold, is generally what shortens battery life the most — a well-documented industry pattern, though not a figure specific to the EV9.
Which makes Pine Belt summers especially rough on batteries. 12V battery health gets checked as part of every service visit, so you'll know where things stand well before you're left stranded. This is entirely separate from the EV9's high-voltage traction battery, which carries its own 10-year/100,000-mile warranty (15-year/150,000-mile in CARB states) and isn't a routine replacement item. The full plan lives on the Kia EV9 maintenance schedule.
Signs You Need a Battery
Notice any of the following? Don't wait for a no-start — bring your EV9 by for a complimentary 12V battery test:
Slow to power on or come awake
Headlights or interior lights dimming
A battery warning light lit up on the dash
The accessory or infotainment system resetting on its own
Visible corrosion building up on the battery terminals
Which Battery Service Does Your EV9 Need?
Battery jobs aren't all the same. Here's how the three levels stack up — your advisor will recommend the right one once it's been tested.
Test & Charge
When the battery is borderline
Load test and charge cycle
Terminal cleaning included
New battery not included
Most Common
Standard 12V Battery
Base trims
New 12V AGM battery
Terminal cleaning & low-voltage system check
Correct group size for your EV9
AGM 12V (EV-Spec)
Higher electronics load trims
Built for the EV9’s always-on electronics load
Supports higher accessory/infotainment demand
Higher cost than a standard battery
Testing always comes first, and we confirm the correct 12V battery for your specific EV9 trim — the separate high-voltage traction battery is never part of this.
Why Get Your Battery Done at Dean McCrary Kia?
A dead battery has a way of happening at the worst possible moment. Here's what only a Kia dealer brings to preventing that — without the markup you might expect.
Factory-Trained Kia Technicians
Our technicians know the EV9's 12V system specs cold, and they'll never confuse it with the separate high-voltage traction battery.
Correct 12V Battery Type
We match the right AGM battery to the EV9's always-on electronics load every time. Get the wrong battery and you risk shortened life or accessory glitches.
Recall & Software Checks — Free
Only a Kia dealer can clear open recalls, campaigns, and software updates — we check for all three on every visit. Check your recalls, no charge, for any Kia owner across the Pine Belt.
Factory Warranty, Documented
Each appointment logs itself automatically toward your factory warranty requirements, so there's nothing to file away and no coverage gaps to justify later — the way Pine Belt Kia owners keep things simple.
Transparent, Upfront Pricing
Testing always happens before the quote, and nothing starts until you sign off — no surprise add-ons at checkout.
We Know What Kias Need
With plenty of EV9s through our bays every month, we already stock the right 12V battery for the trims we see most.
Kia Battery Replacement FAQs
How Much Does a Kia EV9 12V Battery Replacement Cost?⌄
Complimentary testing and installation come standard with every 12V battery. Pick your Kia EV9 above for current pricing and coupons, plus an added Military or First Responder discount for valid ID.
Does This Page Cover the EV9’s High-Voltage Battery?⌄
It doesn't — this page sticks strictly to the EV9's small 12V accessory battery, which powers electronics and accessories. The separate high-voltage traction battery that actually drives the car falls under Kia's 10-year/100,000-mile EV battery warranty (15-year/150,000-mile in CARB states) and isn't something replaced routinely.
How Long Does the EV9’s 12V Battery Last?⌄
Most 12V AGM batteries hold up for about 3 to 5 years. Sustained heat — more so than cold — tends to be the biggest factor cutting battery life short, which is exactly why Pine Belt summers are hard on batteries. Battery health gets checked at every service visit, so replacement is based on evidence rather than a guess.
Why Does an EV Need a 12V Battery at All?⌄
The drive motors run off the EV9's high-voltage traction battery, but a small 12V AGM battery still handles accessories, infotainment, lights, and the low-voltage electronics that wake the rest of the car up. Since it's always working, it wears differently than a gas car's start-battery does.
What Are the Signs My Kia EV9’s 12V Battery Is Failing?⌄
Watch for the car being slow to power on, the accessory or infotainment system resetting itself, interior lights dimming, or a 12V battery warning light on the dash. Extreme heat can take a battery out with little warning, which is why testing before every summer is worth doing.
Is Battery Testing Free at Dean McCrary Kia?⌄
It is — 12V battery testing rides along with our multi-point inspection on every service visit, so you'll always know your battery's condition well before it leaves you stranded.
Can I Finance My Kia EV9 Service?⌄
Yes — service financing lets you handle the work now and pay it down over time. Turn an oil change, brake job, or any repair into monthly payments; the application only takes about a minute at check-in and reviewing your options leaves your credit score untouched.
Reviews & Testimonials from Hattiesburg
Read All ReviewsWhat Service Customers Say
★★★★★
“What a wonderful place. You pull into a lovely covered garage to reach the service desk, so you’re never out in the rain, and they bring your car back around for you when they’re done. Lovely people — I’m very happy I get to go there for my oil changes. Couldn’t recommend them more.”
Gabrielle · Service Customer
★★★★★
“After a wreck totaled my Sorento, I came to Dean McCrary to get another one. Daniel Saucier was my salesperson and he made things so easy and seamless! I ended up leaving in a brand-new 2026 Sorento that I love even more. Thanks Daniel!”
Brittany C. · New Sorento Owner
★★★★★
“The dealership is always clean and comfortable — free coffee, internet and a comfortable lounge to wait in. Everyone I come into contact with is personable and friendly, and they all seem to genuinely enjoy their jobs.”
Frank · Service Customer
Keep Your EV9 Running Right
The 12V battery only covers part of the story. Take a look at the rest of your EV9's care — all handled under one roof at Dean McCrary Kia, Hattiesburg’s own Kia dealer.
Visit the Service Center
We're right on US-98 in Hattiesburg, where its I-59/US-49/US-11 crossroads keeps us an easy reach from Petal, Oak Grove, Purvis, and the broader Pine Belt. Coming from Forrest County, Lamar County, Columbia, or Laurel? The drive in is a straightforward one.
Department Hours
Service
Parts
Looking for Kia EV9 12V Battery Replacement Near Hattiesburg, MS? — Dean McCrary Kia
The 12V accessory battery on every Kia EV9 is tested and replaced here for customers throughout Hattiesburg, Petal, Oak Grove, Purvis, and the broader Pine Belt of south Mississippi. Every service includes complimentary testing, terminal and cable inspection, and a low-voltage system check from factory-trained technicians — the separate high-voltage traction battery is never part of this. As Hattiesburg's own Kia dealer, we're proud to represent the city and the entire south Mississippi Pine Belt, sitting right where I-59, US-49, US-98, and US-11 converge.
12V Battery Pricing & Available Coupons
Complimentary testing and installation come with every 12V battery. Choose your Kia EV9 on this page to view up-to-date pricing and coupons, and bring valid ID for a Military or First Responder discount.
What's the Typical Life of the EV9's 12V Battery?
Most 12V AGM batteries hold up for about 3 to 5 years. Sustained heat is generally the biggest factor cutting that life short, which is exactly why Pine Belt summers are tough on batteries.
Signs a New 12V Battery Is Worth a Look
The car being slow to power on, the accessory or infotainment system resetting, dimming interior lights, or a 12V battery warning light are all cues a battery test is due.
12V Battery or High-Voltage Traction Battery — What's the Difference?
Accessories and electronics run off the 12V AGM battery; the separate high-voltage traction battery drives the car and falls under Kia's EV battery warranty, not routine replacement.