| Manufacturer | Optima Batteries |
|---|---|
| Brand | OPTIMA |
| Model | OPT8012-021 |
| Item Weight | 42.9 pounds |
| Product Dimensions | 10 x 6.88 x 7.8 inches |
| Item model number | OPT8012-021 |
| Batteries | 1 12V batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 8012021 |
| OEM Part Number | 8012-021 |
| Amperage | 55 Amps |
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From the manufacturer
OPTIMA YellowTop D34-78 shown above
Our Promise
Ultimate Power, for the ultimate professionals, for the ultimate enthusiasts. And for the ultimate experience. That's our goal each and every day. We look for every technological advantage to push the limits of what's possible and leave pretenders in our dust.
We manufacture our own batteries in our own facilities to our demanding standards. To ensure quality and consistency in our batteries, no matter where they are being sold - our batteries are never re-labeled or re-spec'd.
Everything you need
The OPTIMA YellowTop high-performance AGM battery is one of the only true dual-purpose automotive batteries available.
With premium cranking power and unparalleled cycling capability (rechargeability), it is perfect for modern accessory-loaded vehicles. With a 40-year history of technological innovation and engineering OPTIMA products offer unstoppable power for extreme enthusiasts.
Trucks with winches, vehicles with high-demand audio systems and commercial vehicles can all rely on this battery to provide ultimate starting and deep-cycle power.
- Deep-cycle and cranking power
- Up to 3x longer life and maintenance-free
- More than 15 times the vibration resistance
- Spillproof, mountable in virtually any position
- Faster recharging and 300+ discharge/recharge cycles
SpiralCell Technology
At the heart of every OPTIMA battery is a series of individual spiral-wound cells comprised of two pure (99.99%) lead plates coated in a precise coating of lead oxide. One coated plate is positive and the other is negative.
The unique manufacturing process of spiral winding continuous lead plates is far more precision-controlled and expensive than building traditional flat plate AGM batteries. Custom automated cell-winding machines are required to maintain the close tolerances required to maintain quality and performance. Critical tolerances, temperatures, humidity and automated processes are maintained and constantly monitored.
OPTIMA has built over 100 million individual spiral cells since the early 1990’s.
What's the difference between OPTIMA RedTop, YellowTop, and BlueTop Batteries?
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|---|---|---|
RedTopFor normal engine starting where an alternator immediately monitors the state of charge and provides energy to the battery whenever it is needed. This would describe most stock vehicles, including: automotive and RV underhood starting, heavy equipment where starting is the primary function, and diesel vehicles without aftermarket electronics. |
YellowTopUse this when electrical loads are higher than average, or when the discharge cycle is more than typical engine starting, such as vehicles with multiple electronic accessories and vehicles without alternators. This can also include vehicles with a lot of factory electronics such as power sliding doors and a DVD player. Examples also include: racing vehicles without a charging system, dedicated drag racers, diesel powered vehicles with aftermarket electronics, and vehicles with inverters, winches, or other accessories. |
BlueTopThe BlueTop starting battery (dark gray case) is to be used when a dedicated starting battery is required and it should never be used for cycling duty. Use a BlueTop starting battery for marine applications and RVs when the battery's only function is engine starting. The dual purpose BlueTop (light gray case) can be used for both starting and deep cycling -- it is a true deep cycle battery with extremely high cranking power. Uses include: trolling motors, marine applications with heavy electrical accessories, and RVs. |
Compare with similar items
This Item  OPTIMA Batteries OPT8012-021 D34 YellowTop Dual Purpose Battery |  |  |  |  |  | |
| Price | $309.99 | $359.99 | $289.99 | $289.99 | $299.99 | $309.99 |
| Delivery | Get it as soon as Friday, May 17 | Get it as soon as Monday, May 20 | Get it as soon as Friday, May 17 | Get it as soon as Friday, May 17 | Get it as soon as Friday, May 17 | Get it as soon as Friday, May 17 |
| Customer Ratings | ||||||
| Value for money | ||||||
| Longevity | ||||||
| Easy to install | ||||||
| Sold By | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com | Amazon.com |
| compatible vehicles | Passenger Car | Passenger Car | Passenger Car | Passenger Car, Truck | Truck | Boat |
| size | 10 x 6-7/8 x 7-13/16 inch | — | 9-5/16 x 5-1/16 x 8-15/16 inch | 9.94 x 5.06 x 8.94 inches | 10 x 6-7/8 x 7-13/16 inch | 10 x 6-7/8 x 7-13/16 inch |
| terminal type | SAE Terminal | — | SAE Terminal | SAE Terminal | SAE Terminal | SAE Terminal |
| voltage | 12 volts | 12 volts | 12 volts | 12 volts | 12 volts | 12 volts |
| battery composition | lead acid agm | lead acid agm | lead acid | lead acid agm | lead acid | lead acid agm |
| weight | 42.9 pounds | — | 19.36 pounds | 26 pounds | 37.9 pounds | 38.4 pounds |
Reviews with images
Perfect, BUT might need to adjust factory lines.
Purchased 3: September of 2020I've bought two of these for my 2015 Equinox LT (Mothers vehicle) & 2012 Chevy Malibu LS (personal vehicle), and one as a spare. Despite the amount of horrible reviews on this page, I researched it this is basically one of if not the best battery. Now while I don't plan to fully utilize it's capabilities (maybe I'll add running AUXILIARY lights), I wanted it because of its impeccable qualities (Cold cranking, long life, not lead acid, amp draw).I do believe it's worth it for the price, BUT if you need to do alterations on your vehicle consider getting help. (I did it myself and as an Engineer it wasn't to hard just not alot of work room).Totally worth the money. 💯💯👍👍NOTE:- The manufacturer was correct and that alot of vehicles won't work for this.(both my chevys technically aren't compatible, and my Outback didn't have a battery bracket (so I got a battery reloacter and modified it))- Reguardless of cold/Heat car will always start- If you forget to turn off the headlights or Interior light, the battery won't be dead the following day.- If your alternator fails on the road (I.E. Battery light), you can drive for several miles with no problem (when I was in this situation, I had driven 30miles in traffic to get home & the car was fine.)- If you aren't sure if this will fit. Autozone carries Optima Now, so ask a clerk there if you can test fit the battery.(Vehicle photos have been provided)Rather: [2012 Chevy Malibu LS]I had to straightened out the termial connectors to make them fit, thank goodness the factory lines have enough slack.(As of February 08, 2023 the Malibu is still running)(I have since sold this car, loved it to peices)Rather: [2015 Chevy Equinox LT]This one was the most challenging, since the factory lines are backwards (meaning when you rotate the battery 180 degrees to have the right orientation ( "↕️↕️ not ↗️↖️" ) the male leads are 4 inchs too far from the female connectors). I had to cut the original heads off the lines and extend them by 6ins so I'd have plenty of slack. That job took me 5hrs to do and it tuned out near flawless. The only issues is that the bracket that secures the battery is now 1.5ins higher then the original postion and when you place everything back together. The hood closes, but there is a slight 3cm gap at the driverside lamp (maybe I'll correct this later, not a big deal).(As of February 23, 2023 Equinox is still running)Rather: [2008 Subaru Outback]Fits nearly perfectly, but if your car doesn't have battery terminal covers. I would suggest getting some, so that the hood/bonnet doesn't ground the terminals out.(As of February 23, 2023 Outback is still running)
Top reviews from the United States
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Reviewed in the United States on April 10, 2024
Product Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on April 3, 2024
Product Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on December 4, 2023
Product Packaging: Standard PackagingVerified Purchase
Reviewed in the United States on September 20, 2020
I've bought two of these for my 2015 Equinox LT (Mothers vehicle) & 2012 Chevy Malibu LS (personal vehicle), and one as a spare. Despite the amount of horrible reviews on this page, I researched it this is basically one of if not the best battery. Now while I don't plan to fully utilize it's capabilities (maybe I'll add running AUXILIARY lights), I wanted it because of its impeccable qualities (Cold cranking, long life, not lead acid, amp draw).
I do believe it's worth it for the price, BUT if you need to do alterations on your vehicle consider getting help. (I did it myself and as an Engineer it wasn't to hard just not alot of work room).
Totally worth the money. 💯💯👍👍
NOTE:
- The manufacturer was correct and that alot of vehicles won't work for this.
(both my chevys technically aren't compatible, and my Outback didn't have a battery bracket (so I got a battery reloacter and modified it))
- Reguardless of cold/Heat car will always start
- If you forget to turn off the headlights or Interior light, the battery won't be dead the following day.
- If your alternator fails on the road (I.E. Battery light), you can drive for several miles with no problem (when I was in this situation, I had driven 30miles in traffic to get home & the car was fine.)
- If you aren't sure if this will fit. Autozone carries Optima Now, so ask a clerk there if you can test fit the battery.
(Vehicle photos have been provided)
Rather: [2012 Chevy Malibu LS]
I had to straightened out the termial connectors to make them fit, thank goodness the factory lines have enough slack.
(As of February 08, 2023 the Malibu is still running)
(I have since sold this car, loved it to peices)
Rather: [2015 Chevy Equinox LT]
This one was the most challenging, since the factory lines are backwards (meaning when you rotate the battery 180 degrees to have the right orientation ( "↕️↕️ not ↗️↖️" ) the male leads are 4 inchs too far from the female connectors). I had to cut the original heads off the lines and extend them by 6ins so I'd have plenty of slack. That job took me 5hrs to do and it tuned out near flawless. The only issues is that the bracket that secures the battery is now 1.5ins higher then the original postion and when you place everything back together. The hood closes, but there is a slight 3cm gap at the driverside lamp (maybe I'll correct this later, not a big deal).
(As of February 23, 2023 Equinox is still running)
Rather: [2008 Subaru Outback]
Fits nearly perfectly, but if your car doesn't have battery terminal covers. I would suggest getting some, so that the hood/bonnet doesn't ground the terminals out.
(As of February 23, 2023 Outback is still running)
Product Packaging: Standard PackagingVerified Purchase
Perfect, BUT might need to adjust factory lines.
Reviewed in the United States on September 20, 2020
Purchased 3: September of 2020Reviewed in the United States on September 20, 2020
I've bought two of these for my 2015 Equinox LT (Mothers vehicle) & 2012 Chevy Malibu LS (personal vehicle), and one as a spare. Despite the amount of horrible reviews on this page, I researched it this is basically one of if not the best battery. Now while I don't plan to fully utilize it's capabilities (maybe I'll add running AUXILIARY lights), I wanted it because of its impeccable qualities (Cold cranking, long life, not lead acid, amp draw).
I do believe it's worth it for the price, BUT if you need to do alterations on your vehicle consider getting help. (I did it myself and as an Engineer it wasn't to hard just not alot of work room).
Totally worth the money. 💯💯👍👍
NOTE:
- The manufacturer was correct and that alot of vehicles won't work for this.
(both my chevys technically aren't compatible, and my Outback didn't have a battery bracket (so I got a battery reloacter and modified it))
- Reguardless of cold/Heat car will always start
- If you forget to turn off the headlights or Interior light, the battery won't be dead the following day.
- If your alternator fails on the road (I.E. Battery light), you can drive for several miles with no problem (when I was in this situation, I had driven 30miles in traffic to get home & the car was fine.)
- If you aren't sure if this will fit. Autozone carries Optima Now, so ask a clerk there if you can test fit the battery.
(Vehicle photos have been provided)
Rather: [2012 Chevy Malibu LS]
I had to straightened out the termial connectors to make them fit, thank goodness the factory lines have enough slack.
(As of February 08, 2023 the Malibu is still running)
(I have since sold this car, loved it to peices)
Rather: [2015 Chevy Equinox LT]
This one was the most challenging, since the factory lines are backwards (meaning when you rotate the battery 180 degrees to have the right orientation ( "↕️↕️ not ↗️↖️" ) the male leads are 4 inchs too far from the female connectors). I had to cut the original heads off the lines and extend them by 6ins so I'd have plenty of slack. That job took me 5hrs to do and it tuned out near flawless. The only issues is that the bracket that secures the battery is now 1.5ins higher then the original postion and when you place everything back together. The hood closes, but there is a slight 3cm gap at the driverside lamp (maybe I'll correct this later, not a big deal).
(As of February 23, 2023 Equinox is still running)
Rather: [2008 Subaru Outback]
Fits nearly perfectly, but if your car doesn't have battery terminal covers. I would suggest getting some, so that the hood/bonnet doesn't ground the terminals out.
(As of February 23, 2023 Outback is still running)
Images in this review
Reviewed in the United States on March 5, 2020
Product Packaging: Standard PackagingVerified Purchase
This is the 4th Optima Battery that I have owned. The previous ones were excellent and held up for years. From the git-go, this battery has failed to keep a good charge. I use a digital volt meter to monitor the battery. It charges up well and when fully charged, it hovers around around ~13.8V when idling. After sitting overnight, the voltage drops down to ~12.15V. I just returned from an 800 mile camping trip and was able to track the battery performance under many conditions. The results were depressing. Even charging a cell phone directly from the battery with key off, drops the voltage below 12.0V, showing that the battery just doesn't retain its capacity. From the AGM battery voltage chart above, one can see that the resting battery voltage should be up around 12.3 to 12.5V, as were all my previous batteries. Something negative has happened with the manufacture of Optima batteries and I will never buy another one. This is unfortunate since they were once the best battery out there.
Images in this review
Reviewed in the United States on February 21, 2021
I didn't know 5 years ago that there was any issue with these batteries being made in Mexico and of lesser quality control, but mine is one of those and has been working great compared to conventional lead acid batteries. 5 years ago I paid almost 100 dollars less than the current price, so I'm not so sure I'd buy another one at these prices, and I'd explore other reliable AGM options first. However, I got a very well performing D34 yellow top to start a 40 year old Jeep that was never a daily driver, and although Amazon says it won't fit my vehicle, it fits an AMC FSJ perfectly.
Whenever I had the chance to keep the battery on a maintainer/charger for a week or two between starts, I did. Over 5 years that 15 or so year old charger didn't seem as effective so I recently got a new smart charger that has an AGM Mode to see how much more life this Optima battery still has in it. I have my doubts that it's holding its original charge that it had when it was new, so I'll have to check it but as long as it isn't drained it still starts the 360 V8 in cold winter below 30 degrees. The old truck definitely seems to slowly discharge the battery when it sits, so maintenance is a must.
I've brought this battery back from an almost completely dead state a few times using a slow recharge, so I've been satisfied with the resilience of the battery design and the extra deep cycle cranking amps. An ordinary battery would have been wrecked and maybe would need some expert regeneration techniques just to perform like this one has without having to take it out of the engine bay.
If I could get another one that works like this one did for the same price it was 5 years ago, I would.
Product Packaging: Standard PackagingVerified Purchase
This battery is coming up on 5 years, constantly being drained and still kicking.
Reviewed in the United States on February 21, 2021
Overall, this battery has been reliable and it seems I got a decent one, even though I've killed this battery multiple times over the years by draining it by accident, letting it sit too long without starting and maintaining, or other ordinary situations. I probably need to replace it by now, but as long as I keep an eye on the battery being charged between starts, it continues to function.Reviewed in the United States on February 21, 2021
I didn't know 5 years ago that there was any issue with these batteries being made in Mexico and of lesser quality control, but mine is one of those and has been working great compared to conventional lead acid batteries. 5 years ago I paid almost 100 dollars less than the current price, so I'm not so sure I'd buy another one at these prices, and I'd explore other reliable AGM options first. However, I got a very well performing D34 yellow top to start a 40 year old Jeep that was never a daily driver, and although Amazon says it won't fit my vehicle, it fits an AMC FSJ perfectly.
Whenever I had the chance to keep the battery on a maintainer/charger for a week or two between starts, I did. Over 5 years that 15 or so year old charger didn't seem as effective so I recently got a new smart charger that has an AGM Mode to see how much more life this Optima battery still has in it. I have my doubts that it's holding its original charge that it had when it was new, so I'll have to check it but as long as it isn't drained it still starts the 360 V8 in cold winter below 30 degrees. The old truck definitely seems to slowly discharge the battery when it sits, so maintenance is a must.
I've brought this battery back from an almost completely dead state a few times using a slow recharge, so I've been satisfied with the resilience of the battery design and the extra deep cycle cranking amps. An ordinary battery would have been wrecked and maybe would need some expert regeneration techniques just to perform like this one has without having to take it out of the engine bay.
If I could get another one that works like this one did for the same price it was 5 years ago, I would.
Images in this review
Top reviews from other countries
NF
Does not work 2017 Subaru Outback
Reviewed in Canada on December 31, 2021Product Packaging: Standard PackagingVerified Purchase
Kim Waller
Do not buy anything from Canada direct !
Reviewed in Canada on May 16, 2023Product Packaging: Standard PackagingVerified Purchase
Kim Waller
Reviewed in Canada on May 16, 2023
Images in this review
