Tudor TL1000 EFB Microhybrid · Start-Stop battery 100Ah 900A

Yes. The Tudor TL1000 uses EFB (Enhanced Flooded Battery) technology, that is, flooded lead-acid with plates reinforced by additives. More affordable than an equivalent AGM and with more cycles than a conventional battery (though fewer than AGM), it is what cars with basic Start-Stop use, without regenerative braking.

Yes, the EFB technology of the TL1000 is built for Start-Stop. EFB batteries cover basic Start-Stop (no regenerative braking). If the car recovers energy when braking, AGM is recommended for its higher cycle count; for basic Start-Stop, EFB. The manufacturer's specification comes first. Once fitted it is ready to go; registering it via OBD, advisable on most modern models, lets the alternator charge with the optimum profile.

With a 10 mm spanner, swapping in the Tudor TL1000 takes 15 to 30 minutes on most cars; if the battery sits in the boot or under a seat, allow up to twice as long. Start-Stop or BMS specifics: do not remove the IBS sensor on the negative terminal (just loosen the cable nut); after the swap, register the battery via OBD so the alternator charges with the right profile; and never step down in technology: if the car had AGM or EFB, the new one must be the same or better, as a conventional battery lasts only a few months. What matters most is the terminal order: removing, negative (−) before positive (+); refitting, positive (+) before negative (−). In between, with the engine off and the key out, release the clamp and fit the new battery the same way round as the original, positive on the right (polarity). If the car manufacturer lists any extra step in the handbook, follow it. More detail in how to replace the car battery.

There is no exact figure: for a battery such as the Tudor TL1000 (EFB), a reasonable guide is 4 to 6 years in basic Start-Stop car use. It can vary considerably with usage (short or long journeys), temperature, the condition of the alternator and charging system, power drawn with the engine off and maintenance, plus the car itself and Start-Stop. Cold demands more at every start and intense heat evaporates the electrolyte.

The Tudor TL1000 takes up 353×175×190 mm (length, width and height, terminals included), the European L5 case size. Before buying, measure the space in your car: one extra millimetre can stop the hold-down clamp from closing.

It has the positive on the right (polarity). Put it in front of you, terminals towards you: the post with the red ring and the + sign is the positive. A change of polarity from the original means longer cables or a reconfigured system and can cause a short circuit: check it before ordering.

Not sure? Try your number plate in the finder (DGT/DVLA/KBA detect model and engine) or the "Compatible vehicles" tab, checked by our technical team; if your car is not there, send us make, model, engine and year on WhatsApp and we will reply during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). The car manufacturer's specifications always take priority over our tables. According to our data, 13 verified vehicle versions are compatible with the TL1000.

A direct equivalent needs what this TL1000 offers: 353×175×190 mm, positive on the right, the same Ah and CCA and EFB technology. Not just any technology will do: an EFB cannot be replaced with a conventional battery in Start-Stop cars. The "Equivalents" section further down lists the recommended alternatives.

It is the verified Exide equivalent for the TL1000 tray. Compared with the TL1000 it has the same Ah and cranking power. It costs 17,10 € more. Decide by price, brand preference and availability: both fit and crank the same.

Renault Energy TCe, Peugeot/Citroën PureTech, Fiat MultiAir, Hyundai/Kia ISG and Ford EcoBoost are examples of basic Start-Stop (no regenerative braking) fitted with it from new. The EFB (Enhanced Flooded Battery) is a reinforced flooded battery: plates with carbon and polyethylene additives and thicker grids, giving it more cycles than a conventional one; for cycles and deep discharges it still sits below an AGM. EFB is the right technology if your car came with one from the factory (moving up to AGM is optional and the gain marginal). If it came with an AGM, fit an AGM instead.

The alternator detects the new battery and adapts the charge automatically, so on most cars it is not compulsory. Even so, it is advisable to register it via OBD so charging is optimum from the first minute and the battery lasts longer, particularly on BMW, Mercedes, Audi, Volvo or Land Rover, with more sophisticated BMS. Without registration there is no starting problem: the alternator adjusts the profile within a few days. Any workshop with an OBD scanner does it in a few minutes; DIY, with VCDS or Carista (VAG group), Bimmercode (BMW) or iCarsoft.