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Fit it Yourself?

Everything you need to fit it yourself at home

Only £30.00 

With Steering Wheel Control
Only £50.00 

5 Stars (1)
Batteries Varta Optima Yellow Top

Varta Optima Yellow Top YT S 4.2 (D34) Deep Cycle Battery

£224.99 Save £93.96 (29%)  was:£318.95
5 Stars
1 Review(s) / write a review
Quickfind Code - 27128
Save £93.96 (29%)
rrp: £318.95
This product has been discontinued

  • Free Car Air Freshener with every order Free Car Air Freshener with every order
  • Next Day Delivery available on all order before 5pm Next Day Delivery available on all order before 5pm
  • Easy Returns Easy Returns
  • 1 Year Easy Warranty 1 Year Easy Warranty

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Sorry, this product has been discountinued. please call us for alternatives

Key Features

YT S 4.2 (D34) Deep Cycle Battery - Varta Optima Yellow Top


  • Deep cycling and cranking power all packed into one battery.
  • Lasts up to 2 times longer than traditional flat-plate batteries.
  • Constant performance quality, which keeps your battery running at the same level even as it's being discharged.
  • More power in the initial 1, 3, 5, and 10 seconds of the starting process than comparably rated conventional lead-acid batteries.
  • Ideal for seasonal use, fully charged it can sit unused for up to 12 months at room temperature (or below) and still start a vehicle.
  • 15 times more resistant to vibration than traditional lead-acid batteries.
  • Mountable in almost any position.

Like You, It Doesn't Know When to Quit

There's not another battery in the world that works as hard as the OPTIMA® battery. Especially against the number one enemy: vibration. The unique SPIRALCELL® Technology used in the construction of the OPTIMA® YellowTop S 5.5 battery makes it an excellent power source for demanding heavy duty engine starting and deep cycle applications.

Deep Cycle Batteries for Professional Use

OPTIMA® YellowTop batteries are guaranteed to deliver uninterrupted power throughout the entire discharge cycle. The ability to hold a higher voltage during the discharge cycle makes it possible to utilise more of the stored power in the OPTIMA®, compared to ordinary batteries. Plus, it's spill-proof, highly resistant to extremes of temperature and can be stored for long periods without maintenance.

OPTIMA®'s YellowTop

last up to twice as long as traditional batteries, so if you rely on your vehicle to earn a living, you demand consistent high performance from all the parts you put into it. Unexpected downtime due to a battery failure can waste time and money and put you behind schedule. OPTIMA® YellowTop batteries are made to endure the extremes of commercial, heavy duty use and keep you moving.

NONSPILLABLE AND MAINTENANCE FREE OPTIMA® batteries are completely sealed and maintenance free, providing a solution for applications where flexibility in mounting is needed.

Where loud comes from

OPTIMA® YellowTop batteries, featuring SPIRALCELL® Technology, are designed for all of your deep cycle needs. It's perfect for people who are serious about sound. OPTIMA®'s power is cleaner with higher voltage output than conventional batteries enabling you to play your system louder and longer. They have a greater cycle life so they can be drained and recharged more often. Plus, they're spill-proof and can withstand 15 times the vibration of ordinary batteries.

Compact Power

New developments have created demanding electrical systems requiring a high performance deep-cycle automotive battery. OPTIMA® batteries can meet the needs of enthusiasts in the performance market. Our new YellowTop deep cycle YT 2.7 and YT 3.7 are ideally suited to meet your power needs.

Download image of Varta Optima Yellow Top Click here for Image of Varta Optima Yellow Top
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Customer reviews

great power
james on 28/10/2015 5 star rating

Now i Understand why i should use a second battery on a big system. since Ive added a second battery my distortion level has gone down and also i can run my system for a longer time without running down my battery.

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Questions/Answers About This Product
  • Question: 13 September 2015
    Car: Ford Fiesta - 2003-2005

    Is a bettery like this needed in a 1200w RMS system?

    hi there you will only require this sort of battery if you are running alot of current and power in additional audio,amplifiers from your cars battery. this car also replace your main car battery
    for 1200w you will not need a additional battery

    Found Useful? Yes 

  • Question: 10 October 2013
    hi will this OPTIMA® Yellow Top batteries fit my vw golf tdi or is the OPTIMA® red top batteries good .

    These are secondry batteries and should only be fitted on a split charge in the boot of the car.

    Found Useful? Yes 

Fitting Services

Need help with Installation?

Here at CarAudioCentre we offer a professional and reputable fitting service in all our stores. For all fitting enquiries and bookings please visit or call one of our nationwide stores. Our fitters can install your new car stereo, DAB radio, audio visual, speakers, subwoofers or amplifier. We can also help to connect your iPod or MP3 player to you existing audio unit and can offer the best advice on the right in-car entertainment for your vehicle, to further this more we also offer a total 100% custom installation service for demo and show vehicles. So if you have an idea come on in and run it past us, the possibilities are endless and we are never too busy for an enthusiastic chat about our favourite subject.

Please note:

"That our two year warranty on products is only applicable to purchases made directly from us and that have been fitted in one of our stores."

Our Stores:

542 546 Mansfield Road, Sherwood NG5 2FR
Tel: 0115 9624 986
743-745 Eastern Ave, Newbury Park, London, IG2 7RT
Tel: 0208 599 2368
835 Garratt Lane, Tooting, London, SW17 0PG
Tel: 0208 971 9181