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Your 2008 Nissan Altima is only as reliable as the battery under the hood. A weak or dying battery leaves you stranded at the worst possible moment — a dead car in a grocery store parking lot or a no-start on a freezing morning. The trick is picking the right group size and technology that actually fits your Altima and handles its electrical load without drama.
I’m Min Islam — the founder and writer behind Trending Car. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
The seven batteries below were chosen because they match the critical fitment specs for this car, and this article explains exactly which 08 nissan altima battery delivers reliable power, cold-cranking confidence, and long-term value without guesswork.
Our Picks at a Glance
How To Choose The Best 08 Nissan Altima Battery
Picking the right battery for your Altima depends on three things: physical fit, starting power, and the type of battery technology your car can use. Here is what to look for so you do not end up with a battery that does not fit or a car that struggles to start.
Group Size 35 — The Only Fit That Works
The 2008 Nissan Altima uses a BCI Group Size 35 battery (a standard industry size for the battery case and terminal layout). That means the dimensions are roughly 9.06 inches long, 6.89 inches wide, and 8.82 inches tall. If the battery is not a Group 35, it will not sit correctly in the tray, and the terminals will not reach your cables. Always check the group size first.
Cold Cranking Amps (CCA) — What You Need for Winter
CCA tells you how much starting power a battery delivers in freezing weather (at 0°F). For a 2008 Altima, 650 CCA is the standard spec. A battery with at least 650 CCA will crank your engine reliably on cold mornings. Going higher, like 720 CCA, gives you extra margin in extreme cold, which can mean the difference between a start and a tow.
AGM vs. Flooded — Which Type Your Car Needs
Your Altima can use either a standard flooded battery or an AGM battery (absorbed glass mat — where the acid is held in fiberglass mats so it cannot spill). AGM batteries are sealed, spill-proof, and last longer. They also handle vibration better. If your Altima has stop-start technology or you just want a longer-lasting battery, go with AGM. Flooded batteries are cheaper but wear out faster and can leak.
Quick Comparison
| Model | Best For | CCA | Weight | Warranty | Amazon |
|---|---|---|---|---|---|
| Weize Platinum AGM Group 35★ Best Overall | Overall Value & Performance | 650 | 37.69 lbs | 36 Months | Amazon |
| Mighty Max MM-G35Raw Power Pick | Raw CCA Output | 650 | 41.1 lbs | 1 Year | Amazon |
| Interstate Batteries MTX-35 | Premium Longevity | 650 | 42 lbs | 36 Months | Amazon |
| Autocessking Group 35 AGM | Budget-Friendly AGM | 650 | 38 lbs | 3 Years | Amazon |
| Daakmax Platinum AGM Group 35 | High Vibration Resistance | 650 | 37 lbs | 36 Months | Amazon |
| Goodyear 35-AGM | Brand Trust & Versatility | 650 | 39.7 lbs | 36 Month | Amazon |
| OPTIMA REDTOP 35 | Maximum Power & Durability | 720 | 31.7 lbs | Manufacturer | Amazon |
In‑Depth Reviews
1. Weize Platinum AGM Battery BCI Group 35
Our pick — over 4★ from 4,500+ verified ratings; the strongest balance of quality and price.
A mid-range price that delivers premium AGM performance and a three-year warranty.
For the 2008 Altima, the handiest benefit here is the extreme temperature range — the Weize Platinum operates from -22°F to 158°F, so you get reliable starts whether you live in a deep freeze or a desert. It is an AGM battery with 55Ah (amp-hour) capacity and 650 CCA, meaning the acid is held in glass fiber mats, which makes it spill-proof and far more resistant to vibration than a standard flooded battery. That matters because Altima engine bays get plenty of shake on rough roads.
Buyers report this battery was a “perfect fit in my 2019 Prius,” which shares the same Group 35 footprint, so you know the 9.06″ x 6.89″ x 8.03″ dimensions slide into the Altima tray without forcing. At 37.69 pounds, it is lighter than the Mighty Max at 41.1 pounds, making it easier to lift into place. The 36-month warranty adds confidence that most budget batteries do not offer.
One real trade-off: one buyer received a dead unit that caused a year of misdiagnosed electrical issues, and the warranty process required proof with a multimeter (a tool that measures voltage). That is rare, but worth knowing so you test your new battery before committing to other repairs. If you need the maximum CCA, the OPTIMA REDTOP offers 720 CCA instead.
Why It Wins
- Reliable 650 CCA with broad temperature tolerance
- 36-month warranty at a mid-range price point
- Lighter than many Group 35 AGM options
The Catch
- Occasional dead-on-arrival units reported
- Warranty requires proof of issue
the balance: If you want a solid, well-priced AGM battery with a long warranty and proven cold-weather starting, this is the one to grab.
Not ideal if: You want the absolute highest CCA output — the REDTOP tests higher from the start.
2. Mighty Max Battery MM-G35 Group Size 35
The budget-minded AGM that reportedly cranks out way more than its sticker CCA.
Here is a battery that surprises people. Rated for 650 CCA (cold cranking amps), one buyer tested it and reported, “Measures 930 CCA on tester, rated for 650 CCA spec.” That is a huge real-world headroom, meaning your Altima gets far more starting power than you paid for — especially useful in subzero weather where every cold cranking amp counts. The 100-minute reserve capacity (RC — how many minutes the battery can run your lights and accessories if the alternator fails) also means your electronics keep running longer.
The trade-off is noticeable when you lift it into the battery tray. The dimensions (9.06″ x 6.89″ x 8.82″) match the Altima perfectly, and it comes with mounting screws included. The Mighty Max also supports multiple mounting positions (except upside down), giving you flexibility if you are replacing a battery in a secondary vehicle. However, at 41.1 pounds, it is heavier than the 37.69-pound Weize.
One honest limit: the warranty is only 1 year, much shorter than the 36-month coverage on similarly priced AGM batteries from Weize or Autocessking. If longevity is your priority, you may want to spend a little more for a longer-backed option.
What Stands Out
- Tested far above its 650 CCA rating
- Solid 100-min reserve capacity for accessories
- Includes mounting screws for easy install
What Holds It Back
- Only a 1-year warranty
- Heavier than most Group 35 options
Go for it if: You want a battery that punches above its CCA rating and you prioritize raw starting power over a long warranty.
Look elsewhere if: You want the coverage of a multi-year warranty — the Mighty Max only backs you for one year.
3. Autocessking Group Size 35 Start and Stop AGM Battery
A 4.6-star-rated AGM that costs half of what auto parts stores charge for the same technology.
Buyers consistently note this battery is a great value, with one reviewer calling it “half the price of auto parts stores.” That matters because a Group 35 AGM from a brick-and-mortar retailer often runs into the s. The Autocessking delivers the same 650 CCA, 55Ah capacity, and 100-minute reserve capacity, but at a significantly lower price. The 4.6/5 rating across 120 reviews is the highest average in this lineup, suggesting strong consistency from the start. It is a better-rated budget alternative than the Mighty Max.
The AGM construction means zero maintenance — no checking water levels, no acid leaks. The battery resists extreme temperatures and has a low self-discharge rate, so if your Altima sits for days or weeks between drives, it still cranks when you need it. At 38 pounds, it is right in the middle of the pack for liftability. The three-year warranty matches the best in class, which is unusual for a budget-tier battery.
The main thing to know: this is a starting battery, not a deep-cycle battery. Do not use it for solar or marine applications. For your Altima’s daily starting needs, it is more than enough.
What Shines
- Highest buyer rating (4.6/5) in this guide
- Massive cost savings vs. store-bought AGM
- 3-year warranty on a budget price
One Limitation
- Not for deep-cycle or solar use
- Newer brand with less long-term track record
Best for: Drivers who want AGM reliability without paying store premiums — this is the smart value move.
skip it if: You need a deep-cycle battery for accessories or off-grid use; this is a starting battery only.
4. Daakmax Platinum AGM Car Battery Group Size 35
A premium-priced AGM with 18x vibration resistance for rough roads and long engine life.
If your Altima sees potholes, gravel roads, or rough city streets, the Daakmax Platinum’s standout feature is its 18x vibration resistance over standard batteries. That means the internal plates are far less likely to shake loose over time, which directly translates to a longer service life. It is rated at 650 CCA and 100 RC (reserve capacity), with the same Group 35 dimensions (9.06″ x 6.89″ x 8.82″) that fit your Altima’s tray like a glove.
Buyers mention the packaging was the best they have seen — “packed better than anything I’ve seen before to prevent any damage.” The battery also has a leak-proof, non-spillable design with no free acid, so there is zero risk of corrosion eating your terminal cables or tray. The 3-year warranty is solid, and the weight is a manageable 37 pounds, making it one of the lighter AGM options — comparable to the Weize.
The catch: one buyer found the recessed posts did not work with their Hyundai Tucson’s protective cover, causing a fit issue. For the Altima, the terminal layout (tapered, left negative / right positive) is standard, so this should not be a problem, but always measure your original battery first to be sure.
Why Choose It
- 18x more vibration-resistant than standard batteries
- Excellent packaging reduces damage risk
- Leak-proof design prevents terminal corrosion
Watch Out For
- Terminal design may not suit all vehicles
- Higher price point than mid-range AGMs
Reach for this if: You drive on rough roads and need a battery that can take the shaking without failing early.
Better options if: You are on a tighter budget — the Autocessking or Weize offer similar specs for less.
5. Goodyear 35-AGM Platinum Series Battery
Goodyear’s name on a Group 35 AGM that upgrades your electronics along with your starting power.
One reviewer noted that upgrading from a flooded battery to this Goodyear AGM made their LED headlamps “brighter and flicker-free at idle.” That is because AGM batteries maintain a higher, more consistent voltage than standard flooded batteries. For your Altima, that means smoother operation for electronics — the radio, interior lights, and sensors all get steady power. The 650 CCA and 100-minute RC are standard for the group, but the build quality from a major tire and battery brand adds confidence. It is a more versatile pick than the Daakmax if you want a brand you recognize.
The dimensions are slightly different from most Group 35s at 9.00″ x 7.00″ x 8.87″, so the width is 7.00 inches, while the typical Group 35 width is 6.89 inches. That should still fit the Altima tray, but double-check your current battery’s width before buying. It weighs 39.7 pounds — middle of the pack — and includes mounting screws. The 36-month warranty is competitive with the best in class from Weize and Interstate.
One buyer mentioned the warranty was not honored when the battery failed at six months, with the manufacturer and Amazon both refusing replacement. That is a risk with any online battery purchase, so keep your receipt and test the battery soon after arrival.
High Points
- Delivers consistent voltage for sensitive electronics
- Strong brand recognition and 36-month warranty
- Spill-proof AGM resists vibration and shock
Low Points
- Slightly wider than standard Group 35
- Warranty claim issues reported
Perfect for: Altima owners who want a brand-name AGM and notice electrical accessories like lights running better with stable voltage.
Think twice if: A standard Group 35 width of 6.89″ is critical for your tray fit — this one is 7.00″.
6. OPTIMA Batteries REDTOP Group 35
The legendary REDTOP with SpiralCell technology and 720 CCA — more power, less weight.
OPTIMA is the name most car enthusiasts know, and the REDTOP lives up to the reputation. That extra 70 CCA (cold cranking amps) over the 650 CCA standard can make the difference when temperatures drop below zero. The unique SpiralCell design wraps 99.99% pure lead into spirals instead of flat plates, delivering more power in a smaller package. The result: at 31.7 pounds, it is the lightest battery in this guide, making it far easier to lift and install than the 42-pound Interstate MTX-35.
The REDTOP is also 15 times more resistant to vibration than standard flooded batteries, and OPTIMA claims up to 3 times longer life. The physical size is a bit different: 9.38″ long, 6.75″ wide, and 7.69″ tall — shorter than the typical 8.82″ Group 35 height. That means it may sit lower in the tray, but it still fits securely. One owner reported the included bottom tray did not fit their J-hook tie-down, so you may need to reuse your original hardware.
Some owners mention premature failure after 13 months, and OPTIMA’s customer service can be difficult to navigate. At this premium price point, that inconsistency is frustrating. Still, for those who want the absolute best CCA and lightest weight, the REDTOP is the benchmark.
What Makes It Special
- 720 CCA — the highest in this guide
- Only 31.7 lbs, easiest to handle
- SpiralCell design resists vibration 15x better
What Gives Pause
- Premium price with inconsistent longevity
- Customer service complaints
Worth the premium for: Drivers in extreme cold climates who want maximum cranking power and the lightest battery to carry.
Not for everyone: If you want predictable multi-year life and a straightforward warranty process, the Weize or Interstate are safer bets.
7. Interstate Batteries MTX-35 AGM
A 70-year battery heritage packed into a pure lead AGM that claims 2x-3x longer life.
Interstate Batteries has been a trusted name in automotive batteries for over 70 years, and the MTX-35 reflects that experience. It uses a pure lead AGM design that packs more lead into the battery than standard AGMs, which directly translates to longer life. The company claims 2 times the service life of a conventional AGM and 3 times longer than a standard flooded battery. For your Altima, that means you could go 5-7 years between replacements instead of the typical 3-4 years with the Weize or Autocessking.
The specs are standard Group 35: 650 CCA and 55Ah (amp-hour) capacity. But at 42 pounds, it is the heaviest battery in this guide — nearly 10 pounds heavier than the OPTIMA REDTOP. That extra weight is all lead, and it is why the battery lasts longer. The MTX is also maintenance-free and spill-proof thanks to VRLA technology (valve regulated lead-acid, which seals the battery so no acid can escape), which eliminates the risk of acid leaks even if the battery tips. The 36-month warranty is standard for premium AGMs.
The price is the highest in this lineup, and the manufacture date on some units has been reported as one year old, meaning you may lose some of that lifespan before you even install it. Buyers also mention the fit is tight past the radiator overflow on some vehicles, so take your time during installation.
Why It Stands Out
- Pure lead AGM offers longest expected lifespan
- Trusted Interstate brand with 70-year reputation
- Spill-proof and vibration-resistant design
What To Know
- Heaviest battery at 42 lbs
- Highest price in the guide
- Some units have a 1-year-old manufacture date
Pick this if: You want the longest possible battery life and are willing to pay a premium for the pure lead construction and Interstate’s reputation.
pass on it if: You are on a tighter budget or want the lightest battery for easy handling — the OPTIMA or Weize are better choices there.
Understanding the Specs
Cold Cranking Amps (CCA)
CCA measures how much starting power a battery delivers at 0°F. For your 2008 Altima, 650 CCA is the factory spec. Higher numbers, like 720 CCA on the OPTIMA REDTOP, give you extra margin in extreme cold — think single-digit mornings where every amp counts. If you live in a mild climate, 650 CCA is plenty. In the northern states, go higher if your budget allows.
AGM vs. Flooded Batteries
AGM (absorbed glass mat) batteries hold the acid in fiberglass mats instead of letting it slosh around inside. That makes them spill-proof, vibration-resistant, and longer-lasting than traditional flooded batteries. AGMs also recharge faster and handle deep discharges better. Flooded batteries are cheaper but require maintenance (checking water levels) and are more prone to leaks. For your Altima, AGM is the upgrade that pays off over time.
FAQ
What Group Size battery does a 2008 Nissan Altima need?
Can I use a higher CCA battery than the factory 650 CCA?
Is AGM better than a flooded battery for my Altima?
Will a Group 34 battery fit a 2008 Altima?
How long does an AGM battery last in a Nissan Altima?
Do I need to reprogram my Altima after replacing the battery?
What does reserve capacity (RC) mean for my battery?
Can I install the battery myself or should I hire a mechanic?
How do I know if my Altima needs a new battery?
Final Thoughts: The Verdict
For most Altima owners, the 08 nissan altima battery winner is the Weize Platinum AGM Group 35 because it blends reliable 650 CCA starting power, a 36-month warranty, and AGM durability at a mid-range price that does not break the bank. If you want maximum cold-weather cranking power and the lightest weight, grab the OPTIMA REDTOP with 720 CCA. And for the longest possible lifespan with a trusted brand name, the standout is the Interstate Batteries MTX-35 pure lead AGM.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of July 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, Trending Car earns from qualifying purchases. This does not affect which products we feature.