# Car battery Odyssey ODP-AGM27 85Ah 850A AGM ![Car battery Odyssey ODP-AGM27 85Ah 850A AGM](https://baterias.com/1384-home_default/battery-odyssey-odp-agm27-85ah-850a.jpg) > Odyssey ODP-AGM27 car battery 85Ah 850A AGM. ODP range. Dimensions 318×173×224 mm, + terminal on the left. Check fitment by plate. **Category:** [Car batteries equipped with start stop system](https://baterias.com/gb/car-batteries-equipped-with-start-stop-system) → [ODYSSEY](https://baterias.com/gb/odyssey) - **Canonical URL**: https://baterias.com/gb/battery-odyssey-odp-agm27-85ah-850a - **Language**: en-GB - **Brand**: ODYSSEY - **Reference**: BCOM-ODYSSEY-ODP-AGM27 - **MPN**: ODP-AGM27 - **Price**: 355,60 € - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | ODYSSEY | | Reference | ODP-AGM27 | | Model | ODP | | Largo | 318 cm | | Ancho | 173 cm | | Alto | 224 cm | | Peso | 27.1 kg | | Tecnología | AGM | | Terminal layout | Positive terminal on the left | | Terminal type | SAE | | Cold cranking amps (EN) | 850 | | Capacity (C20) | 85 Ah (c20) | | Capacity (C10) | 79 Ah (c10) | ## Quick description **Odyssey ODP-AGM27 85Ah 850A** 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 ⚡ Capacity 85 Ah C20 🔋 Cold cranking 850 A SAE 📏 Dimensions 318×173×224 mm ⚙️ Technology AGM 🧭 Polarity Positive on the left ⚖️ Weight 27,1 kg 🏷️ Model ODP ## Description ## Start-Stop battery Odyssey ODP-AGM27 ODP 85Ah 850A 85*Ah* Capacity 850*A* Cold cranking 27.10*kg* Weight The **Odyssey ODP-AGM27** with AGM technology delivers the **85 Ah** at ** V** and **850 A** of cold cranking current (EN) that cars with Start-Stop, regenerative braking and heavy electrical loads need. It measures 318 × 173 × 224 mm and the positive terminal on the left, the format sought by anyone replacing a 85 Ah battery in Start-Stop cars. - Up to three times the cycles of a conventional battery. - Compatible with regenerative braking and energy management (BMS). - Withstands hundreds of starts a day without degrading. - AGM technology: absorbed electrolyte, no spills, can be mounted at an angle. ### What the Odyssey ODP-AGM27 is for In Start-Stop cars the battery works far harder than in a conventional car; the Odyssey ODP-AGM27 is built for that intensive cycling and to recharge quickly on the move. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 27.10 kg and SAE terminals. ### Size, terminals and hold-down of the Odyssey ODP-AGM27 It has external dimensions of 318 × 173 × 224 mm and weighs 27.10 kg. The positive terminal on the left decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses SAE 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. ### Odyssey: the maker behind the ODP-AGM27 Odyssey, part of the EnerSys group, makes thin-plate pure-lead (TPPL) batteries: extreme cranking, total vibration resistance and very long service life in motorsport, 4x4, marine and demanding vehicles. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty. ### The Odyssey ODP-AGM27: ODP range and AGM technology The **ODP** is the Odyssey range the ODP-AGM27 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle. AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly. ### Usage and maintenance tips Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. If the vehicle only does very short trips, a periodic maintenance charge with an AGM/EFB-compatible charger greatly extends its life. ### Official warranty The Odyssey ODP-AGM27 comes with the **manufacturer's official warranty**. To keep it valid, always fit the same technology as the original battery (AGM or EFB) and register the replacement if your vehicle requires it. ### 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 ### Is the ODP-AGM27 model AGM? What does this technology offer? Yes. The ODP-AGM27 from Odyssey uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for cars with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions. ### Is the Odyssey ODP-AGM27 battery suitable for Start-Stop? Yes. As AGM technology it is designed for Start-Stop vehicles. AGM batteries support advanced Start-Stop and regenerative braking thanks to their higher cycle count. EFB is recommended for basic Start-Stop; AGM is recommended when regenerative braking is also present, thanks to its higher cycle capability. It works straight out of the box — on most modern vehicles registering the battery via OBD is recommended so the alternator automatically applies the optimal charging profile. ### How is the Odyssey ODP-AGM27 battery installed in the vehicle? 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 (−) 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 cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### How many years does this battery last? Expected lifespan of the Odyssey ODP-AGM27 is 5 to 8 years in mild-climate car use with 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 Odyssey ODP-AGM27 battery? Dimensions (length × width × height) are 318×173×224 mm — also written as 318x173x224 mm — 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 ODP-AGM27 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 — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The ODP-AGM27 typically fits a wide range of European vehicles thanks to its standard DIN case format. ### What are the equivalents of the ODP-AGM27 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 — 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. ### What advantages does the Odyssey ODP-AGM27 AGM battery offer over an EFB? AGM (Absorbent Glass Mat) technology uses absorbent fibreglass that retains the electrolyte, eliminating leaks and allowing up to 3× more charge/discharge cycles than a conventional battery. It is the recommended option when the car has advanced Start-Stop with regenerative braking (BMW EfficientDynamics, Mercedes Eco, Audi MHEV, Land Rover ECO, Volvo i-Stop). Withstands tilted positions, high vibration and extreme temperatures better than EFB. The Odyssey ODP-AGM27 is fully original and meets European EN 50342-6 standards for advanced Start-Stop. ### Do I need to register the Odyssey ODP-AGM27 on the car after installation? On most cars it is not strictly necessary — the alternator detects the new battery and adapts the charge automatically. It is recommended to register the battery via OBD so that the alternator applies the optimal charging profile from the first minute and extends the battery life as much as possible (especially on brands with sophisticated BMS: BMW, Mercedes, Audi, Volvo, Land Rover). Any workshop with an OBD scanner (~10-15 € labour) does it in 5 minutes. DIY apps: VCDS / Carista (VAG), Bimmercode (BMW), iCarsoft. If you do not register, the car will still start correctly — the alternator just takes a few days to adjust the profile. The Odyssey ODP-AGM27 ships factory-charged at 80-90% so you can use it straight after fitting. ## 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 · 2026-09-28*