# Traction battery Trojan J305G-AC 6V 315Ah ![Traction battery Trojan J305G-AC 6V 315Ah](https://baterias.com/666-home_default/battery-trojan-j305g-ac-678a.jpg) > Trojan J305G-AC traction battery 6V 315Ah. ciclo profundo - T2 Technology range. Dimensions 309×174×366 mm. For industrial vehicles. **Category:** [Golf Buggy Batteries](https://baterias.com/gb/batteries-for-golf-buggy) → [TROJAN](https://baterias.com/gb/trojan) - **Canonical URL**: https://baterias.com/gb/battery-trojan-j305g-ac-678a - **Language**: en-GB - **Brand**: TROJAN - **Reference**: BCOM-TROJAN-J305G-AC - **EAN**: 8404653001599 - **MPN**: J305G-AC - **Price**: 442,10 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | TROJAN | | Reference | J305 G-AC | | Model | TROJAN Deep Cycle - T2 Technology | | Voltage (V) | 6 V | | Largo | 309 mm | | Ancho | 174 mm | | Alto | 366 mm | | Peso | 40 kg | | Tecnología | Lead-acid | | Terminal type | 4 | | Capacity (C20) | 315 Ah (c20) | | Capacity (C5) | 258 Ah (c5) | ## Quick description **Trojan J305G-AC 6V 315Ah** is a traction battery for industrial electric vehicles: forklifts, pallet trucks, elevating platforms, cleaning machines (scrubbers) and golf buggies. Built for deep discharges and 8-hour continuous work cycles. ### Why this traction battery? - **Industrial design** built for 8 hours of continuous daily work - **Deep discharges without damage** fully recovers when recharged - **Long industrial lifespan** pays back the investment over time 🔌 Voltage 6 V ⚡ Capacity 315 Ah C20 📏 Dimensions 309×174×366 mm ⚙️ Technology Lead-acid ⚖️ Weight 40 kg 🏷️ Model TROJAN ciclo profundo - T2 Technology ## Description ## Golf cart battery Trojan J305G-AC ciclo profundo - T2 Technology 315Ah 6V 6*V* Voltage 315*Ah* Capacity 40*kg* Weight The **Trojan J305G-AC** is a **315 Ah**, **6 V** deep-cycle battery for golf carts and electric utility vehicles. Measuring 309 × 174 × 366 mm, it is the direct replacement for golf carts fitted from the factory with a 315 Ah battery of this format. - Long service life in daily duty cycles. - Standard format for golf carts and utility vehicles. - Good balance of capacity, cranking power and price. - Reinforced plate construction for intensive use. ### What the Trojan J305G-AC is for Designed for golf carts and electric utility vehicles, the Trojan J305G-AC withstands intensive seasonal use with a reinforced plate construction. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 40 kg and 4 terminals. ### Size, terminals and hold-down of the Trojan J305G-AC It has external dimensions of 309 × 174 × 366 mm and weighs 40 kg. It uses 4 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery. ### What Trojan does differently Founded in 1925 in California, Trojan invented the golf cart battery and remains the standard in deep-discharge applications that demand thousands of cycles. All the Trojan batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty. ### The Trojan J305G-AC: ciclo profundo - T2 Technology range and conventional lead-acid technology Within the Trojan catalogue, the **ciclo profundo - T2 Technology** series groups the references designed for this use. The J305G-AC is the 315 Ah model of that family, with the same performance as its siblings in other sizes. Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour. ### Usage and maintenance tips Recharge the set fully after each round and avoid routine discharges below 20%. Always replace all the batteries in the bank at once and use the charger specified by the vehicle manufacturer. ### Official warranty The Trojan J305G-AC comes with the **manufacturer's official warranty** against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you. ### Delivery times and returns Same-day dispatch from our warehouse for in-stock orders placed **before [[ks:cutoff]]**: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email. ## Frequently asked questions ### How is the Trojan J305G-AC battery installed in the vehicle? In most devices 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 (−) 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 — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### What is the service life of the J305G-AC model? Expected lifespan of the Trojan J305G-AC is 4 to 6 years in regular device use without Start-Stop. 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 Trojan J305G-AC battery? Dimensions (length × width × height) are 309×174×366 mm — also written as 309x174x366 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Which batteries are equivalent to the Trojan J305G-AC? 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 — an EFB cannot be replaced with a conventional battery in Start-Stop devices. See the "Equivalents" section to view recommended options at the same performance level. ## Equivalent batteries - [TROJAN J305E-AC](https://baterias.com/gb/battery-trojan-j305e-ac-645a) ## Reviews - **Average rating**: 4.8 / 5 (32 reviews) ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-01*