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OPTIMA Yellow Top Battery - 8040-218

65 Reviews
This product has been discontinued by OPTIMA Batteries.
We apologize for the inconvenience.
  • Part #: 8040-218
  • Measures:
    • Length: 9.340 in.
    • Width: 6.700 in.
    • Height: 7.685 in.
    • Weight: 36.4 lbs.
  • CCA: 620 amps
  • MCA: 770 amps
  • Voltage: 13.1V
  • Resistance: 0.0030 ohms
  • Capacity: 48 Ah (C/20)
  • Reserve Capacity: 100 minutes
  • Download battery spec sheet (PDF)
Ships between 11/11/2022 - 11/16/2022
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Product Info
  • Electrify your auto's cranking and cycling with the power-packed OPTIMA Yellow Top Battery
  • Two batteries in one—the Yellow Top is a true dual purpose starting and deep cycle battery
  • Ideal for performance autos, bumping stereo systems, bouncing hydraulic systems, racecars without charging systems, off-roaders with winches, diesel trucks, and any other vehicle with demanding electronics
  • Lasts up to twice as long as traditional lead-acid car batteries
  • Fully sealed and 100% maintenance free—never needs watering
  • Packed with OPTIMA's ingenious Spiralcell Technology for 15x greater vibration resistance over old-school batteries
  • Spill-proof even when turned 180°, giving you the freedom to mount your OPTIMA battery in almost any position
  • Cranks out plenty of juice even in extreme temperatures
  • Multiple sizes available
  • 36-month warranty

From bumping stereo systems to hard-pulling winches, power-hungry accessories gobble up traditional car batteries faster than hot dogs at a competitive eating match. Keep your electronics fully fed with the OPTIMA Yellow Top Battery. This dual purpose deep cycle and starting battery cranks out enough juice to satisfy the most demanding gear.

The difference between the OPTIMA Yellow Top Battery and old-school car batteries comes down to the guts. Instead of using flat sheets of impure lead, OPTIMA batteries are loaded with tightly coiled columns of 99.999% pure lead. This Spiralcell Technology ensures maximum vibration resistance, unbeatable output, ultra low ohms and nearly twice the lifespan of traditional batteries.

Forget about carrying around a bottle of distilled water in your trunk—your OPTIMA Yellow Top Battery is completely sealed and 100% maintenance free. You can even rotate your OPTIMA battery a full 180° without it dripping a drop. Plus, OPTIMA backs your Yellow Top Battery with a 36-month warranty.

Manufacturer Info
Return Information

Customer Reviews

Average Rating
Ease of Installation
65 Customer Reviews
5 Star
55 (85%)
4 Star
7 (11%)
3 Star
2 (3%)
2 Star
1 (2%)
1 Star
0 (0%)

Freakin awesome

Fixed my low power issue immediately?? I also get really fast start ups as well! Couldn't be happier
Ease of Installation
Posted By Joseph E (STATEN ISLAND, NY) / August 2, 2018
2007 Mazda 6

Power box

Full battery and pumps my expensive heavy juice running system well constantly
Ease of Installation
Posted By MICHAEL H (Boyds, MD) / February 17, 2018
2007 Toyota Sequoia

Dwain Donahue

Make sure that you use the spacer that they supply. No Problem!
Posted By Dwain A D (LINCOLN, CA) / November 4, 2016
2008 Toyota Tundra

High quality

Best battery I ever bought. Very reliable especially if you have a high powered sound system in your car. Will probably buy another one the next time I need one.
Posted By Christopher G (DICKSON, TN) / June 7, 2016
2012 Honda Ridgeline

AWESOME Battery!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Used my yellow top for dual battery installation.
Posted By Scott F (PHOENIX, AZ) / May 11, 2016


Great customer service from the guy I spoke to on the phone. The problem I have with the battery came with a cracked bottom piece on the plastic. Lucky it isn't into the battery. I didn't give it back because I need the battery for my car right now. So I had to makeshift fix it with duct tape. Not what I expected to get with a very expensive battery.
Posted By Brent B (Vallejo, CA) / December 29, 2015

Optima yellow top

Excellent battery,Super powerful starting,consistent voltage with all accessories on,Very Happy,...AutoAnything A++++
Posted By Dennis D (South Miami , FL ) / December 6, 2015
2015 Mercedes-Benz CLA-Class

My second Optima ????

I use one for the truck and the second one with a inverter to power ALL my camping gear so I can camp in luxury!! My Tacoma has built in inverter and I use it with my Battery Tender to keep my #2 Optima charged ! !
Posted By reed c (saratoga, CA) / February 27, 2015
2008 Toyota Tacoma

The Undisputed!

There is no question on which battery performs better. The only REAL question is red, yellow or blue.
Posted By Daniel B (ALTAMONTE SPRINGS, FL) / January 21, 2015
2011 Mazda 3

Brand new

I could tell the first crank that this battery had a great cold crank amp.
Posted By Graham C (Mission Viejo , CA ) / March 3, 2013
2007 Subaru Impreza

Great battery!!

4 months and running strong. I put it on the second car which we let sit for long, battery is strong everytime we start the car. Excellant customer service by autoanything and super fast shipping!!
Posted By Navdeepak S (Redmond, WA) / April 22, 2011
2004 Acura MDX
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