Tudor TL605 EFB Microhybrid · Start-Stop battery 60Ah 520A

Yes, it is EFB: a flooded lead-acid battery whose plates carry reinforcing additives (what is an EFB). It goes into cars with basic Start-Stop (no energy recovery when braking): more cycles than a conventional battery, fewer than an AGM, and cheaper than an equivalent AGM.

Yes. It is a EFB battery of 60 Ah, designed for vehicles with Start-Stop. EFB batteries cover basic Start-Stop (no regenerative braking). It works once fitted; on most modern cars, registering it via OBD is advisable so the alternator applies the optimum charging profile. The general recommendation is EFB for basic Start-Stop and AGM where there is regenerative braking (it handles more cycles), unless the car manufacturer says otherwise.

If the car has Start-Stop or BMS: a) the technology must match the original (AGM or EFB) or be higher, because a conventional battery would fail within months; b) undo the negative cable at its nut, leaving the IBS sensor in place; c) it is advisable to register the battery via OBD so the alternator applies the proper charging profile. With a 10 mm spanner, swapping in the Tudor TL605 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. Steps: 1) switch off and remove the key; 2) find the battery (bonnet, boot or under a seat); 3) undo the negative (−), then the positive (+); 4) remove the clamp and the old battery; 5) fit the new one facing the same way (positive on the left) to match the polarity; 6) connect the positive (+) and finally the negative (−). If the car manufacturer lists any extra step in the handbook, follow it. More detail in how to replace the car battery.

Estimated lifespan of the Tudor TL605: 4 to 6 years in basic Start-Stop car use. Treat it as an approximate guide, as every case is different. Many factors play a part: how it is used (lots of short trips, for example), temperature (cold makes every start harder and intense heat evaporates the electrolyte), the condition of the alternator and charging system, power drawn with the engine off and maintenance, as well as the type of car and whether it has Start-Stop.

Measure your car's battery tray first; if the battery exceeds it by even a millimetre, the hold-down clamp may not close. Length × width × height: 230x173x222 mm. Height is measured to the top of the terminals.

The TL605 has the positive on the left: that is its polarity. Face the battery with its terminals nearest you and see which side the positive post (+, red ring) is on. Compare it with the battery you are replacing: if it does not match, cables must be lengthened or the system reconfigured, with a risk of short circuit.

The TL605 typically fits a wide range of European vehicles thanks to its standard DIN case format. For your own vehicle: type your number plate into the finder (DGT/DVLA/KBA identify model and engine), check the "Compatible vehicles" tab below, listing vehicles verified by our technical team, or message us on WhatsApp with make, model, engine and year; we reply during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). If our table and the car handbook disagree, go with what the manufacturer says.

A direct equivalent needs what this TL605 offers: 230×173×222 mm, positive on the left, the same Ah and CCA and EFB technology. The "Equivalents" section of this page gathers the recommended options with equivalent performance; remember that in Start-Stop cars an EFB should not be replaced with a conventional battery.

The Exide alternative that fits where the TL605 goes, with the same polarity. Compared with the TL605 it has the same Ah and cranking power. It costs €5.80 more. A straight swap with nothing to adapt; the difference is the price and the brand you prefer.

Thicker grids plus carbon and polyethylene additives in the plates: that is what sets an EFB apart from a conventional flooded battery. The result is more cycles and more resistance to deep discharges, without reaching AGM level. 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. 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.

It is not strictly necessary on most cars, because the alternator detects the change and adapts the charge. The advisable step is to register it via OBD: the charging profile is optimum from the first minute and the battery lasts longer, especially on brands with sophisticated BMS (BMW, Mercedes, Audi, Volvo, Land Rover). Without registration there is no starting problem: the alternator adjusts the profile within a few days. Any garage with an OBD scanner can do it in a few minutes. If you prefer to do it yourself: VCDS / Carista (VAG), Bimmercode (BMW) or iCarsoft.