Off-Road AGM Group 34 Battery Wrangler JK/JKU/JL/JLU and Jeep Gladiator

Review Optima Yellow Top D34/78

The perfect battery that fits most dual battery trays and double clamp trays (Rugged Ridge, M.O.R.E., Genesis, etc.)


The Yellow Top is everywhere in Canada and USA and very popular among week-end wheelers. But Jeepers into long-distance solo expeditions or those working in remote areas normally prefer other brands like Odyssey, Northstar, or ACDelco.

Optima D34/78 Yellow for Jeep Wrangler


It's highly shock and vibration resistant and not only off-roaders like that battery but also drag racing vehicle owners.



Review - Chart Optima Yellow Top D34/78


Weight Ah Cold Cranking Dual Purpose Price


43.5 lbs
















*Dual Purpose = Combines both for starting (high cranking power) and deep cycling (use accessories while the engine is off). It also maintains the charge of the battery for a longer period of time. It's 2 batteries in 1.


  • The cranking power is not as massive as the Odyssey 34R PC1500T (870A for the Optima compared to 1500A for the Odyssey), but it's powerful enough to start the engine of any 1/2-ton pickup truck in cold weather. Spiral winding for the plates and tubes makes that battery highly resistant to constant vibrations. It's also a genuine dual purpose battery made to power several accessories (winch, cb radio, off-road light bars, etc.) at the same time while the engine is off. Self-discharging is at least 50% slower compared to budget car batteries like EverStart Maxx, Lucas, Volta, Amaron, Centennial, Super Charge, Raylite, Apollo Power, DieHard Gold (Regular Lead-Acid), or even the Costco Interstate (AGM).

Dimensions Optima D34/78 :

10.06'' x 6.94'' x 7.88'' (Height) / Metric 25.4 cm x 17.5 cm x 19.8 cm (Height)

Dimensions Optima Yellow Top D34 78

Compatible with (battery compartment fitments):

Wrangler JK 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Wrangler JK Unlimited 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Wrangler JL 2018 2019

Wrangler JL Unlimited 2018 2019


This Optima Battery can be considered as an alternative to :

1 2 3 4 5 6 7 8



- Easy to find in a lot of local brick and mortar stores

- A bit lighter than the average AGM Group 34/78 battery available for Jeepers

- Warranty 3 Years No Question Asked (Almost!)

- Dual Terminals (2xSAE + 2xGM Posts) to connect the winch separately

- Sealed and 100% spillproof

- Mountable on the side too

- Great with most dual battery trays : carry 2 batteries instead of one

- Vibration resistance : ★★★★



- Only 55 Amp hour of energy

- Mounting clamp doesn't perfectly fit in a Wrangler JK/JL (you need to force and curved it, but it works)

- Impossible to repair in the remote wilderness


Top competitors : Kinetic I Stinger I Optima I ACDelco I DieHard I XS Power I NorthStar I VMAX

10 Batteries Comparable to Odyssey and Optima

Best for these uses : Off-Road Adventures I 4x4 Long-Distance Expedition I Overlander I Safari I Mountain Climbing I Rough Trails I Rock Crawling I Water Fording I Winter Wheeling

Where you might get a discount if you buy online : Quadratec I 4wheelparts I Summitracing I Autozone I Carid I Morris 4x4 Center


Optima Battery 34 Off-Road Use

Optima Battery Yellow Top 12V D34/78 with 4 Terminals for Jeep Wrangler JK/JKU/JL/JLU

Manufactured by: Johnson Controls International
Model: SC34DU OPT8014-045 8014-045 N9934 78YEL
4.6 stars based on 155 reviews
$359.99 New + $50 to $100 Shipping Cost


- Where to buy -


Manufacturer's website :

Misspelled Keywords (products name) : Optimma Battery - 4X4 Optima - Optima Yelow Top

Disclaimer : It's only my humble opinion. I'm not a professional. This review and test has been conducted by a Jeep Wrangler enthusiast! Please, double-check details before buying it somewhere.

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XS Power D3400

- Alternatives to Odyssey and Optima -
10 Off-Road Batteries for Wrangler JK/JL