# Car battery Long WTZ4V 12V 3.7Ah ![Car battery Long WTZ4V 12V 3.7Ah](https://baterias.com/1639-home_default/battery-long-wtz4v-12v-37ah.jpg) > Long WTZ4V car battery 12V 3.7Ah. Starting Series range. Dimensions 113Γ—70Γ—85 mm. Check fitment by plate. **Category:** [Car Batteries](https://baterias.com/gb/car-batteries) β†’ [LONG](https://baterias.com/gb/long) - **Canonical URL**: https://baterias.com/gb/battery-long-wtz4v-12v-37ah - **Language**: en-GB - **Brand**: LONG - **Reference**: BCOM-LONG-WTZ4V - **MPN**: WTZ4V - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | LONG | | Reference | WTZ4 V | | Model | Starting Series | | Voltage (V) | 12 V | | Largo | 113 cm | | Ancho | 70 cm | | Alto | 85 cm | | Peso | 1.58 kg | | Capacity (C20) | 3.7 Ah (c20) | | Capacity (C5) | 3.145 Ah (c5) | ## Quick description **Long WTZ4V 12V 3Ah** is a starter battery with OEM-equivalent quality, designed for modern passenger cars. Delivers reliable cold-cranks even after weeks of inactivity and supports stable auxiliary loads (lights, climate control, infotainment). ## Why this car battery? - **Original-equipment quality** without dealership prices - **Lasts 4 to 6 years** buy once instead of twice - **Real human tech support** if you have any doubts before buying πŸ”Œ Voltage 12 V ⚑ Capacity 3 Ah C20 πŸ“ Dimensions 113Γ—70Γ—85 mm βš–οΈ Weight 1,58 kg 🏷️ Model Starting Series ## Description ## Car battery Long WTZ4V Starting Series 3.7Ah 12V 12*V* Voltage 3.7*Ah* Capacity 1.58*kg* Weight With **3.7 Ah** at **12 V**, the **Long WTZ4V** from the **Starting Series** range is a starter battery built for passenger cars with conventional starting, without a Start-Stop system. Measuring 113 Γ— 70 Γ— 85 mm, it is the direct replacement for cars fitted from the factory with a 3.7 Ah battery of this format. - Low self-discharge: copes with long stops without losing charge. - Direct replacement for the original battery in size and terminals. - Original-equipment build quality without the dealership price. - Designed to last several years under normal daily use. ### What the Long WTZ4V is for The Long WTZ4V covers the needs of passenger cars with conventional starting, without a Start-Stop system: reliable starting, stable voltage for the electronics and a service life of several years in daily use. Check that it matches your current battery in size and terminal position. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 1.58 kg. ### The Long WTZ4V within the Starting Series range The WTZ4V is part of the Long **Starting Series** range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family. ### Dimensions, polarity and mounting In terms of format, the Long WTZ4V measures 113 Γ— 70 Γ— 85 mm (length Γ— width Γ— height) and weighs 1.58 kg. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change. ### What Long does differently Long batteries combine large-scale production with ISO quality standards and a batch-to-batch consistency that has made them the de-facto standard in backup systems and electric mobility. All the Long batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### Usage and maintenance tips Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. In normal daily use the alternator keeps the battery charged; if the car stands for weeks, a maintenance charge once a month prevents deep discharge. ### Official warranty The Long WTZ4V comes with the **manufacturer's official warranty** against manufacturing defects; the exact period is stated in the brand's conditions. If it fails through a defect within the period, we replace it free of charge. ### When you get it and how to return it Order **before [[ks:cutoff]]** with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have **[[ks:return_days]] days** to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email. ## Frequently asked questions ### How do I fit the WTZ4V model in my car? In most cars it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (βˆ’) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation β€” match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### How long does the Long WTZ4V battery last? Expected lifespan of the Long WTZ4V is 4 to 7 years in regular use (depends on technology and climate). In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured. ### What are the dimensions of the Long WTZ4V battery? Dimensions (length Γ— width Γ— height) are 113Γ—70Γ—85 mm β€” also written as 113x70x85 mm β€” following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Is the WTZ4V valid for my vehicle? Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year β€” we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The WTZ4V typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the WTZ4V model? Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology β€” an EFB cannot be replaced with a conventional battery in Start-Stop cars. See the "Equivalents" section to view recommended options at the same performance level. ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team β€” automotive battery specialists since 2015. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-11*