Optima Yellow Top YTS 4.2 Dual Purpose AGM Battery
Optima Yellow Top Battery YTS 4.2 (8012-254) (BCI D34) YTS4.2 AGM
Ideal for dual battery setups, we even offer a discount when bought in pairs.
£247.37 inc. UK VAT
Ships direct from UK supplier warehouse (tracked)
Family-run Land Rover parts specialist supplying Genuine, OEM & trusted aftermarket parts.
Free mainland UK shipping £99+ · Express options available
Worldwide Tracked Delivery Available
Please fill in the fields below with the shipping destination details in order to calculate the shipping cost.
The YELLOWTOP high-performance AGM battery is one of the few true dual-purpose automotive batteries available. With premium cranking power and impressive cycling capability, this heavy-duty battery is also perfect for modern accessory-loaded vehicles. Low internal resistance also provides more consistent power output and faster recharges.
Benefits
- Deep-cycle and cranking power
- Up to 3X longer life
- 15 times more vibration-resistant
- Virtually spillproof
- Mountable in virtually any position
- Maintenance-free
- Faster recharging
- Optimal starting power
- 300+ discharge/recharge cycles
| Optima Long Code | 812 254 000 888 2 |
| Voltage | 12V |
| Battery Capacity (C20) | 55Ah |
| Cold Cranking | 765CCA |
| Terminal Type | A, Standard Automotive |
| Terminal Layout | Left Hand Positive |
| Dimensions (Including Terminals) | L254 x W175 x H220mm |
| Weight | 19.5Kg |
| Warranty | 2 Years |
| Country of Manufacture | Mexico |
| Battery Technology | AGM |
| Battery Application | Dual Purpose |
Battery delivery

Batteries can only be delivered within the UK. Because batteries travel through a different courier route and may be sent direct from the battery supplier, order batteries separately from other parts where possible to avoid delays or additional carriage issues.
Battery warranty and vehicle checks
This battery is covered by the manufacturer’s warranty against manufacturing defects. Battery warranty does not cover failure caused by vehicle faults, incorrect charging, overcharging, undercharging, deep discharge, parasitic drain, poor earths, loose terminals, faulty alternators, faulty voltage regulators or unsuitable auxiliary wiring.
If a battery problem occurs, we need to establish whether the battery itself is faulty or whether the vehicle charging system, wiring or electrical equipment has caused the issue. A faulty alternator, regulator, earth, terminal connection or parasitic drain can discharge or damage a battery, and that is not covered as a manufacturing fault.
Before a warranty replacement can be arranged, the battery may need to be fully charged and tested, and we may need charging-system checks from the vehicle. Test results may need to show battery voltage, cold cranking amps and battery health.
Please contact us before returning a battery. We do not normally send a replacement battery before the original battery has been tested and a battery fault has been confirmed.
| Weight | 20 kg |
|---|
Brand
Optima Batteries
Warranty Info
Warranty covers all faults caused by manufacturing workmanship or materials.
Warranty does not cover:
- Sulphation
- Wear and Tear
- Deep or Over Cycling
- Overcharging
- Physical Damage
- Incorrect Application
- Damage from a faulty alternator
Information:
All batteries once filled with electrolyte become active, and will slowly self-discharge. The higher the temperature that they are stored at, the higher this self discharge rate will be.
It is important that no battery is allowed to discharge to the point of sulphating (12.06v), or so that they are no longer able to start the car/bike/truck or operate the required equipment. To prevent this we recommend monthly voltage checks, especially on vehicles that are used infrequently, or stand by equipment. Ideally a volt meter should be fitted to your vehicle so that you can monitor battery and alternator performance.
Once a battery’s voltage drops to 12.4v, we recommend that it is then recharged at a rate of around 10% of the battery’s capacity for 10 hours or until it has a voltage at rest of at least 12.65V.
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Twinwoods 4x4 ships Land Rover parts across the UK and around the world. We regularly send parts overseas and use trusted tracked courier services so UK and international customers can order with confidence.
Standard UK shipments are normally sent with DPD. UK orders containing oils or fluids are normally sent with DHL where required, because some carriers restrict liquid shipments.
Worldwide delivery is available through DPD and DHL Express, depending on the destination, parcel size, weight and available courier services. Add the parts you need to your basket, enter your delivery address, and the checkout will show the available delivery options and prices before payment.
Free mainland UK postage and packaging is available on eligible orders over £99, subject to our delivery terms and conditions.
- Return within 14 days of delivery of your order.
- Items must be unused, unopened and in original packaging.
- Faulty items: we’ll cover return postage—keep your receipt.
- Refunds & Replacements are dealt with once the original item is received and inspected.
Returns – quick FAQs
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Please include your order number and a brief reason for the return.
Buy with confidence: all new parts sold by Twinwoods 4x4 include at least 12 months manufacturer warranty against defects in materials and workmanship under normal use.
Some products and brands may include a longer warranty period where this is provided by the manufacturer. Where applicable, this will normally be stated on the individual product page or covered by the manufacturer’s own warranty terms.
Warranty cover applies to manufacturing defects. It does not cover misuse, incorrect fitting, competition use unless stated, contamination, modification, damage during installation, normal wear and tear, or failure caused by an unrelated vehicle fault. For certain components, proof of professional fitment may be required.
Warranty claims may require the part to be returned for inspection and/or supplier testing before the claim is accepted. Any advance replacement is discretionary.
Warranty remedies relate to the part itself, meaning repair or replacement, or refund if those are not possible. Warranty does not cover labour, removal or refitting, diagnostics, consumables, travel or other incidental costs.
This warranty is in addition to your legal rights and does not reduce those rights.
For full details, please see our Terms and Conditions.

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