# Batteries 254 × 172 × 184 mm

> Looking for a battery measuring 254 × 172 × 184 mm (length × width × height)? These 2 models fit that tray exactly, with capacities of 50 Ah and prices from 185.15 €, VAT included.

## Available models

| Modelo | V | Ah | CCA (EN) | L×An×Al mm | Tech | Polarity | € VAT incl. | Stock | URL |
|---|---|---|---|---|---|---|---|---|---|
| Car battery Optima RTC-4.2 12V 50Ah 815A AGM | 12 | 50 | 815 | 254×172×184 | AGM ESPIRAL |  | 185,15 | ✓ | https://baterias.com/gb/battery-optima-red-top-rtc-42-8001-287-12v-50ah |
| Car battery Optima RTF-4.2 12V 50Ah 815A AGM | 12 | 50 | 815 | 254×172×184 | AGM ESPIRAL | + left | 197,00 | — | https://baterias.com/gb/battery-optima-red-top-rtf-42-8078-209-12v-50ah |

## Frequently asked questions

### Which battery measures 254x172x184 mm?
The 2 models on this page fit a 254x172x184 mm tray exactly (length × width × height), with prices from 185.15 € VAT included.

### Can I fit a slightly smaller battery?
Yes, if it is properly clamped with the original fixing: a few millimetres less in length or height is usually fine. What never fits is a battery LARGER than the tray, and watch terminal height so it does not touch the bonnet.

### Which capacities exist in 254x172x184 mm?
In this size you will find batteries of 50 Ah. For equal size, more Ah and more CCA usually means a better battery for your car.

### Do the dimensions include terminals and the hold-down ledge?
Yes. We publish each battery's total maximum volume: hold-down ledge, lid edges and terminal height where they protrude. If your tray takes these figures, the battery fits safely.

### Can I change technology while keeping this size?
Yes, always equal or upwards: from conventional to EFB or AGM is fine — they share the standard case — but never downwards in Start-Stop cars. Each model's technology is shown on its card and you can filter by it above.

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Updated: 2026-07-19 · https://baterias.com/gb/batteries-254x172x184