Varta E44 Dynamic SLI · Car battery 77Ah 780A

On most cars it is a 15-30 minute job needing only a 10 mm spanner (up to twice as long when the battery is under a seat or in the boot). With the engine stopped and the key removed, always start with the negative (−) terminal, then the positive (+). Free the clamp, swap the battery without turning it round (this one has positive on the right) so the polarity stays the same, and reconnect in reverse: positive (+) first, negative (−) last. If the car manufacturer lists any extra step in the handbook, follow it. More detail in how to replace the car battery.

As a rough estimate, the Varta E44 typically lasts 4 to 6 years in regular car use without 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.

Measure the battery tray before ordering: a one-millimetre difference is enough for the hold-down clamp not to close. It measures 278×175×190 mm in length × width × height, with the terminals included in the height; that is the European L3 case size.

Polarity of the Varta E44: positive on the right. It must match your current battery: reversed polarity means lengthening cables or reconfiguring the system, with a risk of short circuit. Seen from the front, terminals towards you, the positive (+) is the post with the red ring.

Its EAN-13 barcode is 4016987167427. The ETN, the European identifier in parts catalogues, is 5774000783162, also written 577 400 078; and the manufacturer's reference is E44. It belongs to the Varta Dynamic SLI range. Any of them pins down this exact battery.

The compatibility list for the E44 runs to 1,350 verified vehicle versions. 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. Interchangeable means the same dimensions, same polarity, same Ah and same CCA; for the E44, 77 Ah (780 A cranking).

The leaner option in the same range, below the E44. Compared with the E44 it has 2 Ah less and 130 A of cold cranking less. It costs €166.75 more. Enough if the original was that capacity; the E44 gives you more margin for a little more.

The Exide alternative that fits where the E44 goes, with the same polarity. Compared with the E44 it has 20 A of cold cranking less. It costs €18.65 less. A straight swap with nothing to adapt; the difference is the price and the brand you prefer.