Tudor TK950 AGM Microhybrid · Start-Stop battery 95Ah 850A

Yes. The Tudor TK960 is AGM (Absorbent Glass Mat): sealed lead-acid, with the electrolyte absorbed in glass fibre. Compared with a conventional battery it withstands more charge/discharge cycles and handles heat better; it is the required technology for cars with advanced Start-Stop and regenerative braking.

AGM batteries support advanced Start-Stop and regenerative braking thanks to their higher cycle count. The Tudor TK960 is AGM, so yes, it is designed for Start-Stop cars. Basic Start-Stop: EFB. Start-Stop with regenerative braking: AGM, which withstands more cycles. Check the handbook for the technology the car manufacturer requires. It works once fitted; on most modern cars, registering it via OBD is advisable so the alternator applies the optimum charging profile.

If the car manufacturer lists any extra step in the handbook, follow it. More detail in how to replace the car battery. With a 10 mm spanner, swapping in the Tudor TK960 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. The right order: engine off and key out; disconnect the negative (−) first, then the positive (+); release the hold-down clamp, lift out the old battery and seat the new one in the same position (positive on the right), keeping the polarity; reconnect the positive (+) first and the negative (−) last. On cars with Start-Stop or BMS, registering the battery via OBD makes the alternator charge with the correct profile. Mind the IBS sensor on the negative terminal too: loosen the cable nut, not the sensor. And the replacement must be the same technology (AGM or EFB) or higher: a conventional battery fails within months.

As a rough estimate, the Tudor TK960 typically lasts 5 to 8 years in mild-climate car use with Start-Stop; it is a guide figure, not a guaranteed period. What weighs most: temperature (cold makes starts harder and intense heat evaporates the electrolyte), frequent short trips, the condition of the alternator and charging system, power draw while parked and maintenance, not forgetting the type of car and Start-Stop.

It measures 353×175×190 mm in length × width × height, with the terminals included in the height; that is the European L5 case size. Measure the battery tray before ordering: a one-millimetre difference is enough for the hold-down clamp not to close.

Polarity of the Tudor TK960: positive on the right. Seen from the front, terminals towards you, the positive (+) is the post with the red ring. 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.

Three routes: the "Compatible vehicles" tab on this page, with the vehicles verified by our technical team; your number plate in the finder, from which DGT/DVLA/KBA detect model and engine; and WhatsApp, with make, model, engine and year, during business hours (Mon–Fri 10:00–13:30 and 16:30–18:00 (Spanish time, CET)). In every case, the car manufacturer's specifications (owner's handbook) take precedence.

See the "Equivalents" section of this page for the recommended options at the same performance level. Mind the technology: in Start-Stop cars an EFB is not swapped for a conventional battery. A direct equivalent needs what this TK960 offers: 353×175×190 mm, positive on the right, the same Ah and CCA and AGM technology.

Sister reference of the TK950, practically identical on paper. Compared with the TK950 it has the same Ah and cranking power. It costs 41,90 € less. Choose by price and availability: in real use you will not notice a difference.

It is the verified Varta equivalent for the TK950 tray. Compared with the TK950 it has 1 Ah less. It costs 7,99 € more. Decide by price, brand preference and availability: both fit and crank the same.

For regenerative braking systems such as BMW EfficientDynamics, Mercedes Eco, Audi MHEV, Land Rover ECO or Volvo i-Stop, AGM is the recommendation; it also copes better than an EFB with tilting, vibration and extreme temperatures. AGM means Absorbent Glass Mat: the electrolyte soaks a glass-fibre mat (no spills), and an AGM battery lasts many more cycles than a conventional one. Cold cranking current (EN) of the Tudor TK960: 850 A.

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.