# Tudor TA681 · Car battery 12V 68Ah 650A

![Tudor TA681 · Car battery 12V 68Ah 650A](https://bateriasonline.es/2823-home_default/tudor-ta681.jpg)

> Tudor TA681: 68 Ah car battery, 650 A (EN), 277×175×190 mm, positive terminal on the left, L3 case. Equivalent to Exide EA681. Ask for a no-obligation quote.

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

- **Canonical URL**: https://bateriasonline.es/en/tudor-ta681
- **Language**: en
- **Brand**: Tudor
- **Reference**: BOL-TUDOR-TA681
- **EAN**: 3661024054317
- **MPN**: TA681
- **Last updated**: 2026-11-07

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Tudor |
| Range | TUDOR HIGH TECH |
| Application | Cars |
| Technology | Lead-acid |
| Voltage | 12 V |
| Capacity | 68 Ah |
| Cold cranking amps (EN) | 650 A |
| Length | 277 mm |
| Width | 175 mm |
| Height | 190 mm |
| Weight | 17 kg |
| Polarity | Positive terminal on the left |
| Case size | L3 (278 × 175 × 190 mm) |

## Quick description

Tudor TA681: car battery with 12 V, 68 Ah and 650 A cold cranking current, case size L3 (277 × 175 × 190 mm), with the positive terminal on the left. Need the positive terminal on the right? The same battery is the Tudor TA680.

## Description

## Who the Tudor TA681 is for

The Tudor TA681 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. The TA681 covers the daily routine of a car without automatic engine stop: cold starts, short trips and loads with the ignition off.
At 68 Ah it is the usual size for compact diesels and mid-size petrol saloons. The TA681 belongs to the Tudor TUDOR HIGH TECH range. [The full range of Tudor batteries](https://bateriasonline.es/en/tudor-batteries)

## Part numbers and codes for the Tudor TA681

The TA681 is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | TA681 |
|---|---|
| EAN | 3661024054317 |
| Case size (EN) | L3 |
| Not to be confused with | Tudor TA601 (60 Ah, 600 A), Tudor TA680 (68 Ah, 650 A, positive terminal on the right) |

## Tudor TA681 vs TB741, TA680 and TB708

The real differences between the TA681 and the closest Tudor models:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Tudor TA681 (this one) | 68 Ah | 650 A | 277 × 175 × 190 | left | 17 kg |
| Tudor TB741 | 74 Ah | 680 A | 278 × 175 × 190 | left | 16.6 kg |
| Tudor TA680 | 68 Ah | 650 A | 277 × 175 × 190 | right | 17 kg |
| Tudor TB708 | 70 Ah | 740 A | 260 × 180 × 186 | left | 16.7 kg |

- Tudor TB741: 6 Ah more, 30 A more cranking power, the same L3 case.
- Tudor TA680: identical to the TA681 except for the positive terminal, which is on the other side (positive terminal on the right).
- Tudor TB708: 2 Ah more, 90 A more cranking power, a different case (260 × 180 × 186 mm).

## Equivalents and alternatives to the Tudor TA681

Batteries that fit the TA681's tray with the same polarity; besides other conventional batteries, an EFB or AGM of this size is a valid upgrade for the TA681.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EA681 | Lead-acid | 68 Ah | 650 A | 277 × 175 × 190 |

## Inside the TA681: lead-acid technology

The TA681 is a conventional lead-acid battery, with plates immersed in liquid electrolyte. Avoid leaving them discharged, as they sulphate, and charge them with a charger that cuts off or switches to maintenance when finished.

## Before ordering the TA681, check this

- If your car has Start-Stop, the TA681 is not the right one: it needs an EFB or an AGM.
- Cold cranking: 650 A (EN), equal to or higher than the original.
- Your current battery should say about 68 Ah; a little more is also fine.
- Polarity of the TA681: positive terminal on the left (if yours has it on the other side, the cables will not reach).
- The TA681 needs 277 × 175 × 190 mm of space (European case size L3): measure it with the hold-down clamp in place.

## Frequently asked questions about the Tudor TA681

### TA681 or TB741: which one suits me?

Compared with the TA681, the Tudor TB741 has 6 Ah more and 30 A more cranking power. If your current battery says 680 A or more, choose the TB741; if it says 650 A or less, the TA681 is enough. Both measure 277 × 175 × 190 mm, so they fit the same tray.

### Tudor TA681 or TA680: what is the difference?

Only the polarity: the TA681 has the positive terminal on the left and the TA680 the positive terminal on the right. Capacity (68 Ah), cranking power and dimensions are identical.

### Can the Tudor TA681 be used in a car with Start-Stop?

No. The TA681 is a lead-acid battery for cars without automatic engine stop; Start-Stop needs an EFB or an AGM.

### How much does the Tudor TA681 weigh?

17 kg, with 68 Ah of capacity. For reference, the Tudor TB741 (74 Ah) weighs 16.6 kg.

### Which battery is equivalent to the Tudor TA681?

With the same dimensions, polarity and similar capacity you have the Exide EA681. As the TA681 is a conventional battery, an EFB or AGM of the same size also works.

### What case size is the Tudor TA681?

Case size L3: 277 × 175 × 190 mm. The TA681 fits any standard L3 battery tray such as the Exide EA681.

### Does the new battery need to be registered in the car?

In cars with energy management (common since 2010) it is worth registering the battery in the control unit so it adjusts charging. In older cars you just connect it.

## Other options if you are unsure about the TA681

- [More car batteries](https://bateriasonline.es/en/car-batteries)
- [The whole Tudor range](https://bateriasonline.es/en/tudor-batteries)
- [Varta E12](https://bateriasonline.es/en/varta-e12) · 74 Ah, 680 A, 278×175×190 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-10*