# Odyssey ODX-AGM31 · Car battery 100Ah

![Odyssey ODX-AGM31 · Car battery 100Ah](https://bateriasonline.es/3599-home_default/odyssey-odx-agm31.jpg)

> Odyssey ODX-AGM31: 100 Ah car battery, 330×173×241 mm, positive terminal on the left, TPPL. Compare sizes and equivalents; 14-day returns.

**Category:** [Car batteries](https://bateriasonline.es/en/car-batteries) → [Odyssey](https://bateriasonline.es/en/odyssey-batteries)

- **Canonical URL**: https://bateriasonline.es/en/odyssey-odx-agm31
- **Language**: en
- **Brand**: Odyssey
- **Reference**: BOL-ODYSSEY-ODX-AGM31
- **MPN**: ODX-AGM31
- **Price**: 541,35 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Odyssey |
| Range | ODX |
| Application | Cars |
| Technology | TPPL |
| Capacity | 100 Ah |
| Length | 330 mm |
| Width | 173 mm |
| Height | 241 mm |
| Weight | 35.3 kg |
| Polarity | Positive terminal on the left |
| Terminal type | 3/8-16" Stud |

## Quick description

The Odyssey ODX-AGM31 is a car battery (TPPL) with 100 Ah, measuring 330 × 173 × 241 mm, with the positive terminal on the left.

## Description

## The Odyssey ODX-AGM31 at a glance

The Odyssey ODX-AGM31 is a starter battery for cars without Start-Stop: it delivers the current the starter motor needs and then powers lights, control units and audio with the engine off. Its job is to start the engine in the cold with margin to spare and keep the car's electronics powered.
At 100 Ah it moves into large diesels, SUVs, vans and cars with heavy electrical equipment. The ODX-AGM31 belongs to the Odyssey ODX range. [The full range of Odyssey batteries](https://bateriasonline.es/en/odyssey-batteries)

## Part numbers and codes for the Odyssey ODX-AGM31

Look for any of these ODX-AGM31 codes on your current battery or in the manufacturer's catalogue:

| Commercial reference | ODX-AGM31 |
|---|---|
| Terminal type | 3/8-16" Stud |
| Not to be confused with | Odyssey ODP-AGM31 (100 Ah, 925 A), Odyssey ODX-AGM34 (68 Ah), Odyssey ODX-AGM31M (103 Ah) |

## Equivalents and alternatives to the Odyssey ODX-AGM31

We have no other battery with exactly the dimensions and polarity of the ODX-AGM31. Browse the rest of our [car batteries](https://bateriasonline.es/en/car-batteries) to compare close options.

## What to look at before buying the ODX-AGM31

- The ODX-AGM31 needs 330 × 173 × 241 mm of space: measure it with the hold-down clamp in place.
- With the terminals facing you, the positive terminal of the ODX-AGM31 is on the left.
- With 100 Ah, the ODX-AGM31 replaces an original battery of that capacity or slightly less.
- The ODX-AGM31 is AGM: it replaces an AGM or an EFB of the same size. You can swap an EFB for an AGM, but not an AGM for an EFB.

## What it means that the ODX-AGM31 is TPPL

The ODX-AGM31 is TPPL: thin plate pure lead AGM. It is the technology behind ODYSSEY, GENESIS and PowerSafe.

## Frequently asked questions about the Odyssey ODX-AGM31

### Can the Odyssey ODX-AGM31 be used in a car with Start-Stop?

Yes. As an AGM battery, the ODX-AGM31 handles automatic engine stop and brake energy recovery, and it can replace an EFB of the same size.

### How much does the Odyssey ODX-AGM31 weigh?

35.3 kg, with 100 Ah of capacity.

### Which side is the positive terminal on the Odyssey ODX-AGM31?

On the ODX-AGM31, the positive terminal is on the left with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

### Which charger does the Odyssey ODX-AGM31 need?

A charger with an AGM mode able to deliver high current: TPPL batteries charge fast and accept up to 40% of their capacity in amps. Absorption voltage 14.4-14.7 V.

## Other options if you are unsure about the ODX-AGM31

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [Full Odyssey catalogue](https://bateriasonline.es/en/odyssey-batteries)

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*bateriasonline.es — Batteries and accessories · 2026-11-11*