Odyssey ODP-AGM27M · Marine battery 85Ah 850A AGM
Marine battery Odyssey ODP-AGM27M 85Ah 850A AGM images
Specifications
| Brand | ODYSSEY |
|---|---|
| Part number | ODP-AGM27M |
| Capacity (C20) | 85Ah (c20) |
| Capacity (C10) | 79Ah (c10) |
| Cold cranking amps (EN) | 850 |
| Technology | AGM |
| Length | 318.00 cm |
| Width | 173.00 cm |
| Height | 224.00 cm |
This product is priced on demand to offer you the best available price at all times.
Please contact us to request a quote and we will inform you about availability and the best price on the entire website, as well as the delivery time.
Thank you
Odyssey ODP-AGM27M 85Ah 850A is a marine battery with reinforced anti-vibration case for moorings and offshore use. Tolerates the typical daily cycles on a boat (engine start + night-time services such as lights, sonar, fridge) and holds voltage even when the hull is rolling in open sea.
Why this marine battery?
- Marine designbuilt for boat swell and vibration
- Dual functionstarts the engine and powers onboard services
- Sealed and safemaintenance-free even when the boat rolls
Request a quote for your Marine battery Odyssey ODP-AGM27M 85Ah 850A AGM
- Reply in under 24 working hours
- Best price guaranteed
Marine battery Odyssey ODP-AGM27M ODP 85Ah 850A
With 85 Ah at V and 850 A of cold cranking current (EN), the Odyssey ODP-AGM27M from the ODP range is built for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 318 × 173 × 224 mm format: same 85 Ah capacity and the positive terminal on the left.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Reinforced case against vibration and swell.
- Powers onboard services: lights, sounder, GPS, fridge.
- Tolerates the daily cycling of a boat in season.
What the Odyssey ODP-AGM27M is for
On board, the Odyssey ODP-AGM27M provides 85 Ah with a case reinforced against vibration and swell. Keep the terminals clean and protected from salt humidity. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 27.10 kg and M terminals.
Dimensions, polarity and mounting
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 M 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.
The Odyssey ODP-AGM27M: ODP range and AGM technology
The ODP is the Odyssey range the ODP-AGM27M 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.
Odyssey: the maker behind the ODP-AGM27M
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. All the Odyssey batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Official warranty
The Odyssey ODP-AGM27M comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
Care and maintenance
Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. As a service battery, avoid routine discharges below 50% to extend its cycle life.
Shipping, delivery and returns
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
-
-
ReferenceBCOM-ODYSSEY-ODP-AGM27M
Data sheet
-
BrandODYSSEY
-
ReferenceODP-AGM27M
-
ModelODP
-
Length318.00 cm
-
Width173.00 cm
-
Height224.00 cm
-
Weight27.10 Kgs
-
TechnologyAGM
-
Terminal layoutPositive terminal on the left
-
Terminal typeM
-
Cold cranking amps (EN)850
-
Capacity (C20)85Ah (c20)
-
Capacity (C10)79Ah (c10)
Specific References
-
UPC635241140668
-
MPNODP-AGM27M
Recommended accessories
Frequently asked questions
Is the Odyssey ODP-AGM27M an AGM battery and what are the benefits of AGM?
Yes. The ODP-AGM27M 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 boats with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
How do I fit the ODP-AGM27M model in my boat?
In most boats 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 our blog. 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 — with positive on the left match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On boats with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Odyssey ODP-AGM27M battery last?
Expected lifespan of the Odyssey ODP-AGM27M is 5 to 8 years in mild-climate boat 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-AGM27M 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 boat before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
What polarity does the Odyssey ODP-AGM27M battery have?
Polarity: positive on the left. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk.
Does this battery fit my boat?
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-AGM27M typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Odyssey ODP-AGM27M?
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 boats. See the "Equivalents" section to view recommended options at the same performance level.
The top-rated online battery store in Spain
-
Audited by Trustpilot, no filters, no edits. The top-rated battery store in Spain.
Trustpilot · verified, no filters
-
Official Varta distributor
Official Varta wholesale distributor. 100% genuine batteries, recently manufactured, best price and no middlemen.
World’s best-selling battery brand
-
+100,000 satisfied customers
More than 100,000 customers already trust baterias.com — and recommend us to their friends and family.
They trust us and recommend us
Choose trust, choose quality, choose baterias.com.