What Should You Know About the 2016 Kia Optima Battery?
The 2016 Kia Optima uses a 12-volt battery, typically Group Size 35 or H5, with a lifespan of 3–5 years. Regular maintenance, voltage checks, and avoiding short trips prolong its life. Replacement costs $120–$400, including parts and labor. Signs of failure include slow engine cranking, dashboard warnings, and electrical malfunctions. Always reset the Battery Management System after replacement.
How Long Does the 2016 Kia Optima Battery Last?
The 2016 Kia Optima battery typically lasts 3–5 years. Factors like climate, driving habits, and electrical load impact longevity. Extreme heat accelerates corrosion, while cold reduces cranking power. Frequent short trips prevent full recharging. Use a multimeter to check voltage; below 12.4 volts signals a weak battery. Proactive replacement at 3–4 years avoids unexpected failures.
To maximize battery life, clean terminals every six months using a mixture of baking soda and water to prevent corrosion buildup. Owners in colder climates should consider using a battery warmer during winter months. If your Optima is equipped with start-stop technology, opt for an AGM (Absorbent Glass Mat) battery, as it’s better suited for frequent cycling. Below is a comparison of average battery lifespans under different conditions:
| Climate Type | Average Lifespan | Recommended Maintenance |
|---|---|---|
| Hot (90°F+) | 2–3 years | Monthly voltage checks |
| Moderate (50–85°F) | 4–5 years | Bi-annual inspections |
| Cold (Below 32°F) | 3–4 years | Winter insulation blanket |
Where Is the Battery Located in a 2016 Kia Optima?
The battery is in the engine bay, on the driver’s side near the windshield. Some trims with advanced auto-stop systems may have a secondary battery in the trunk. Look for a black rectangular box with red (positive) and black (negative) terminals. Remove the plastic cover and securement bracket to access it.
What Are the Signs of a Failing Battery in a 2016 Kia Optima?
Key signs include:
1. Slow engine crank or clicking noises
2. Dim headlights or interior lights
3. Check Engine or Battery Warning lights
4. Swollen battery case
5. Frequent jump-starts
6. Malfunctioning electronics (e.g., power windows, infotainment)
How Much Does a 2016 Kia Optima Battery Replacement Cost?
Costs range from $120–$400:
– OEM battery: $150–$250
– Aftermarket (e.g., DieHard, Optima): $100–$200
– Labor: $20–$150
– Battery Management System reset: $50–$100 (if not DIY)
Prices vary by location, battery brand, and dealership vs. independent shops.
Can You Replace the 2016 Kia Optima Battery Yourself?
Yes, with basic tools:
1. Turn off the engine and open the hood.
2. Disconnect negative (–) then positive (+) terminals.
3. Remove the hold-down bracket.
4. Lift out the old battery.
5. Install the new battery and secure it.
6. Reconnect terminals (positive first).
7. Reset the Battery Management System via the dashboard menu.
Why Does the 2016 Kia Optima Require a Battery Management System Reset?
The Battery Management System (BMS) monitors charging and usage patterns. A new battery requires resetting the BMS to optimize performance and lifespan. Skipping this step may cause overcharging, reduced efficiency, or false error codes. Resetting is done via the steering wheel controls or an OBD-II scanner.
What Are the Best Aftermarket Batteries for the 2016 Kia Optima?
Top options include:
1. Optima RedTop (35-PC1400T): High CCA, spill-proof
2. DieHard Platinum (H5-AGM): 120-minute reserve capacity
3. Interstate MT-H5/BCI-35: Affordable, 30-month warranty
4. ACDelco 35AGM: OEM-equivalent performance
Ensure compatibility with Group Size 35 or H5 and 700+ CCA.
When selecting an aftermarket battery, prioritize models with at least 720 Cold Cranking Amps (CCA) for reliable starts in low temperatures. AGM batteries are ideal for Optimas with start-stop technology due to their deep-cycle resilience. Below is a detailed comparison of popular options:
| Brand | Type | CCA Rating | Warranty |
|---|---|---|---|
| Optima RedTop | AGM | 720 | 3 years |
| DieHard Platinum | AGM | 700 | 4 years |
| Interstate MT-H5 | Flooded | 640 | 30 months |
| ACDelco 35AGM | AGM | 760 | 3 years |
How Does Temperature Affect the 2016 Kia Optima Battery?
Extreme heat accelerates chemical reactions, causing fluid evaporation and plate corrosion. Cold temperatures thicken engine oil, requiring more cranking power and straining the battery. Park in shaded or garaged areas and use insulation blankets in winter. Test voltage seasonally and maintain a 12.6–12.8V resting charge.
Expert Views
“Many 2016 Optima owners overlook the BMS reset after replacement, leading to recurring issues. Always use an AGM battery if your trim includes start-stop technology. Corroded terminals are a common fix—clean them annually with baking soda and water.” — John Carter, Certified Automotive Technician
Conclusion
The 2016 Kia Optima battery demands attention to voltage, maintenance, and proper replacement protocols. Addressing early warning signs, selecting quality replacements, and resetting the BMS ensure reliable performance. Regular checks and climate-conscious habits extend battery life, preventing roadside emergencies.
FAQs
- Does the 2016 Kia Optima Have Two Batteries?
- Only trims with the Idle Stop-Go (ISG) system have a main battery and a smaller auxiliary battery. Check your owner’s manual or inspect the trunk for a secondary unit.
- Can a Bad Battery Cause Transmission Issues in the 2016 Optima?
- Yes. Low voltage can disrupt the Transmission Control Module, causing rough shifts or hesitation. Always rule out battery issues before diagnosing transmission problems.
- Is the 2016 Optima Battery Covered Under Warranty?
- Kia’s original battery warranty is 12–24 months. Aftermarket batteries include 1–5-year warranties. Damage from neglect or accidents is not covered.