TD5 & 300TDI Starter Battery – Hankook 115Ah 1000CCA | MF31-1000
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£132.00 inc. UK VAT
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Hankook MF31-1000 12V starter battery with 115Ah capacity and 1000CCA, giving TD5 and 300TDI Land Rovers strong cranking performance from a full-size Type 643/644 battery. The sealed calcium construction is maintenance-free in normal use and the battery fits the standard battery trays used on Defender, Discovery 2 and Range Rover P38.
On Defender TD5 and Discovery 2 TD5, the MF31-1000 is a replacement for YGD100860, now superseded by LR135238. Its large 115Ah capacity and 1000CCA output also make it well suited to 300TDI Land Rovers using the same full-size battery installation.
Vehicle Fitment
- Defender TD5
- Defender 300TDI
- Discovery 2 TD5
- Discovery 1 300TDI
- Range Rover Classic 300TDI
- Range Rover P38
Older Land Rovers are frequently found with replacement battery clamps, altered cables or different-size batteries fitted over the years. Where the existing installation is not standard, check the case dimensions and terminal position before ordering.
Technical Specifications
| Specification | Details |
|---|---|
| Voltage | 12V |
| Capacity | 115Ah (C20) |
| Cold cranking output | 1000CCA |
| Battery type | Type 643 / 644 |
| Technology | Sealed calcium |
| Terminal type | Standard automotive |
| Terminal layout | Centre |
| Dimensions including terminals | 330 × 172 × 242mm |
| Weight | 24.8kg |
| Start-stop suitable | No |
For alternative starting batteries and different capacities, see our TD5 batteries and 300TDI starter batteries.
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 | 25 kg |
|---|---|
| Dimensions | 36 × 24 × 30 cm |
| Product Dimensions (inc. terminals) | L330 x W172 x H242mm |
| Battery Voltage | 12V |
| Cold Cranking Amps (CCA) | 1000 CCA |
| Battery Capacity | 115 Ah |
| Battery Type | 643/644 |
| Battery Technology | Sealed Calcium |
| Terminal Layout | Centre |
| Warranty (Years) | 2 years |
Brand
Hankook Batteries
Hankook starter and dual-purpose batteries for Land Rover Defender, Discovery and Range Rover models, including high-capacity batteries for TD5, 300TDI and Defender Puma vehicles.
Hankook is an established automotive battery manufacturer producing conventional starter and dual-purpose batteries. Twinwoods stocks selected Hankook batteries where their capacity, cranking performance and physical fitment suit the Land Rover applications we specialise in.
Hankook batteries at Twinwoods 4x4
Our Hankook range includes high-cranking starter batteries for older Defender, Discovery and Range Rover models, a dedicated Defender Puma starter battery, and the XV27 dual-purpose battery for auxiliary and leisure installations.Related battery sections
See our Land Rover 12V batteries, TD5 batteries, 300TDI batteries and Defender Puma batteries for the wider battery range.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.
6 reviews for TD5 & 300TDI Starter Battery – Hankook 115Ah 1000CCA | MF31-1000
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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.
- Changed your mind within 14 days? UK and EEA consumers have statutory cancellation rights. Tell us within 14 days of receiving your order, then return the goods within the following 14 days.
- Need longer? Eligible products can be returned under our voluntary extended returns policy. Contact us within 60 days of delivery and, once the return has been agreed, send the goods back within 14 days.
- Extended returns must be unused, unfitted, complete and suitable for resale as new. Goods must be undamaged, unmarked and uncontaminated, with all components and accessories supplied and their original product packaging where this formed part of the supplied product.
- A £10 handling charge applies to extended returns. This is charged once per return consignment, regardless of how many eligible products are returned together. It does not apply where your statutory cancellation rights apply.
- Return carriage and safe packing are your responsibility for change-of-mind returns.
- Managed UK returns: where suitable, we can provide a convenient prepaid tracked return service with straightforward drop-off, proof of handover and tracking linked to your return. The cost will be advised before it is arranged and may be deducted from your refund.
- Please do not fit or attempt to fit a part unless you intend to keep it. Fitting, attempted fitting, contamination, damage or excessive handling can substantially reduce the value of the goods. A product which has been fitted or used will not normally qualify for our voluntary extended returns policy.
- Faulty, damaged or incorrectly described? Contact us first. We will advise the appropriate return method and will normally provide a prepaid return service or cover reasonable agreed return costs.
Returns – quick FAQs
How long do I have to return an item?
For UK and EEA consumers, statutory change-of-mind cancellation rights also apply: tell us within 14 days of receiving your order, then return the goods within the following 14 days.
Which products qualify for 60-day returns?
Products purchased for £250 or more are not automatically covered, although we may agree to accept them for return at our discretion. Eligibility is based on the price of each individual product rather than the total order value.
Is there a charge for an extended return?
This charge does not apply where the return is being made under your statutory cancellation rights.
Who pays return carriage?
If an item is faulty, damaged or incorrectly described, contact us first. Where return is reasonably required, we will normally provide a prepaid return service or cover reasonable return costs agreed with us.
What condition must an extended return be in?
Can I fit a part and then return it?
Once a part has been fitted or an attempt has been made to fit it, it may be marked, contaminated, damaged or otherwise unsuitable for resale as a new part. Fitted or used goods will not normally qualify for our voluntary extended returns policy.
Where statutory cancellation rights apply, handling beyond what is reasonably necessary to inspect the goods may result in a reduction to your refund if it has reduced their value.
What if the item is faulty?
Are any items excluded from 60-day returns?
Extended returns must also meet the condition requirements above. Statutory exclusions and any separate statutory rights continue to apply as set out in our full Terms & Conditions.
How do I start a return?
Please include your order number and a brief reason for the return. Do not send anything back until you have received the appropriate return instructions.
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.







Verified owner Keith Norton (verified owner) –
Nice powerful battery good name to it x speedy service will use again .
Verified owner Allan (verified owner) –
Arrived quickly and good courier
Verified owner Sam H. (verified owner) –
Very happy with the part and fast delivery highly recommend Twinwoods4x4
Verified owner Nicky (verified owner) –
Very helpful advice and fast efficient delivery. Would recommend and definitely use again
Verified owner Neil (verified owner) –
Got my 90 started straight away after taking out the old standard battery. Very happy
Verified owner Anonymous (verified owner) –