# 50Ah batteries

We stock 38 batteries of 50 Ah (AGM, lead-acid, LiFePO4) priced between 47.04 € and 1757.15 €, VAT included. Amp-hour capacity is the total energy the battery stores: when replacing, always fit equal or slightly higher capacity than the original, never lower.

50Ah is the typical capacity for petrol superminis and small hatchbacks (Citroën C3, Fiat Panda, Renault Clio and similar). A quality conventional battery is plenty for this segment if the car has no Start-Stop.

At this rating we stock AGM, lead-acid, LiFePO4. Start-Stop golden rule: never downgrade technology — factory AGM must be replaced with AGM; factory EFB can be upgraded to AGM but never downgraded to conventional.

Brands available right now in at 50 Ah: Exide (10), Optima (7), Fullriver (7), Tudor (5), Long (5), Varta (2). All with official warranty and live stock.

Cold cranking amps (CCA, EN standard) of the listed models range from 270 to 815 A. When replacing, pick a CCA equal or higher than your original: every amp counts in winter.

## 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 | 254×175×200 | AGM ESPIRAL |  | 185,15 | ✓ | https://baterias.com/gb/battery-optima-red-top-rtc-42-8001-287-12v-50ah |
| Deep-cycle battery Long LG50-12N 12V 50Ah GEL | 12 | 50 | 0 | 199×166×171 | GEL |  | 112,15 | ✓ | https://baterias.com/gb/battery-long-lg50-12n-12v-50ah |
| Deep-cycle battery Long WP50-12NE 12V 50Ah AGM | 12 | 50 | 0 | 199×166×171 | AGM |  | 100,10 | ✓ | https://baterias.com/gb/battery-long-wp50-12ne-12v-50ah |
| Marine battery Exide EP450 12V 50Ah AGM | 12 | 50 | 750 | 260×173×206 | AGM |  | 141,15 | ✓ | https://baterias.com/gb/battery-exide-ep450-12v-50ah-750a |
| Car battery Optima RTS-4.2 12V 50Ah 815A AGM | 12 | 50 | 815 | 254×175×200 | AGM ESPIRAL |  | 186,70 | ✓ | https://baterias.com/gb/battery-optima-red-top-rts-42-8002-250-12v-50ah |
| Start-Stop battery Varta A9 12V 50Ah 540A AGM | 12 | 50 | 540 | 207×175×190 | AGM |  | 100,10 | ✓ | https://baterias.com/gb/battery-varta-a9-12v-50ah-540a |
| Car battery Exide EB500 12V 50Ah 450A | 12 | 50 | 450 | 207×175×190 | PLOMO/ACIDO |  | 47,15 | ✓ | https://baterias.com/gb/battery-exide-eb500-12v-50ah-450a |
| Car battery Optima RTU-4.2 12V 50Ah 815A AGM | 12 | 50 | 815 | 254×175×200 | AGM ESPIRAL |  | 185,15 | ✓ | https://baterias.com/gb/battery-optima-red-top-rtu-42-8004-250-12v-50ah |
| Car battery Optima RTS-2.1 6V 50Ah 815A AGM | 6 | 50 | 815 | 254×90×203 | AGM ESPIRAL |  | 162,96 | ✓ | https://baterias.com/gb/battery-optima-red-top-rts-21-8010-355-12v-50ah |
| Start-Stop battery Tudor TK508 12V 50Ah 800A AGM | 12 | 50 | 800 | 260×173×206 | AGM |  | 141,91 | ✓ | https://baterias.com/gb/battery-tudor-tk508-50ah-800a |
| Marine battery Optima BTSLI-4.2 12V 50Ah AGM | 12 | 50 | 815 | 254×175×200 | AGM ESPIRAL |  | 180,80 | ✓ | https://baterias.com/gb/battery-optima-blue-top-btsli-42-8006-252-12v-50ah |
| Start-Stop battery Exide EK508 12V 50Ah 800A AGM | 12 | 50 | 800 | 260×173×206 | AGM |  | 139,86 | ✓ | https://baterias.com/gb/battery-exide-ek508-12v-50ah-800a |
| Start-Stop battery Varta N50 12V 50Ah 550A EFB | 12 | 50 | 550 | 207×175×190 | EFB |  | 85,15 | ✓ | https://baterias.com/gb/battery-varta-n50-12v-50ah-550a |
| Car battery Tudor TB500 12V 50Ah 450A | 12 | 50 | 450 | 207×175×190 | PLOMO/ACIDO |  | 49,46 | ✓ | https://baterias.com/gb/battery-tudor-tb500-50ah-450a |
| Car battery Tudor TB501 12V 50Ah 450A | 12 | 50 | 450 | 207×175×190 | PLOMO/ACIDO |  | 60,69 | ✓ | https://baterias.com/gb/battery-tudor-tb501-50ah-450a |
| Car battery Optima RTR-4.2 12V 50Ah 815A AGM | 12 | 50 | 815 | 254×175×200 | AGM ESPIRAL |  | 209,20 | ✓ | https://baterias.com/gb/battery-optima-red-top-rtr-42-8003-251-12v-50ah |
| Marine battery Exide EM1000 12V 50Ah AGM | 12 | 50 | 800 | 260×173×206 | AGM |  | 255,03 | ✓ | https://baterias.com/gb/battery-exide-em1000-12v-50ah-800a |
| Deep-cycle battery Long LG50-12 12V 50Ah GEL | 12 | 50 | 0 | 199×166×171 | GEL |  | 196,00 | ✓ | https://baterias.com/gb/battery-long-lg50-12-12v-50ah |
| Car battery Tudor TB504 12V 50Ah 360A | 12 | 50 | 360 | 200×173×222 | PLOMO/ACIDO |  | 103,09 | ✓ | https://baterias.com/gb/battery-tudor-tb504-50ah-360a |
| Car battery Exide EB504 12V 50Ah 360A | 12 | 50 | 360 | 200×173×222 | PLOMO/ACIDO |  | 96,47 | ✓ | https://baterias.com/gb/battery-exide-eb504-12v-50ah-360a |
| Car battery Tudor TB505 12V 50Ah 360A | 12 | 50 | 360 | 200×173×222 | PLOMO/ACIDO |  | 103,09 | ✓ | https://baterias.com/gb/battery-tudor-tb505-50ah-360a |
| Deep-cycle battery MK Powered M50-12 SLD M 12V 50Ah AGM | 12 | 50 | 0 | 199×166×171 | AGM |  | 154,20 | — | https://baterias.com/gb/battery-mk-m50-12-sld-m-agm-12v-50ah |
| Car battery Exide EB501 12V 50Ah 450A | 12 | 50 | 450 | 207×175×190 | PLOMO/ACIDO |  | 47,04 | — | https://baterias.com/gb/battery-exide-eb501-12v-50ah-450a |
| Car battery Optima RTF-4.2 12V 50Ah 815A AGM | 12 | 50 | 815 | 254×185×184 | AGM ESPIRAL |  | 197,00 | — | https://baterias.com/gb/battery-optima-red-top-rtf-42-8078-209-12v-50ah |
| Marine battery Fullriver DC50-12A 12V 50Ah AGM | 12 | 50 | 440 | 241×175×190 | AGM |  | 216,25 | — | https://baterias.com/gb/battery-agm-fullriver-dc50-12a-12v-50ah |
| Marine battery Fullriver DC50-12B 12V 50Ah AGM | 12 | 50 | 270 | 198×166×171 | AGM |  | 182,48 | — | https://baterias.com/gb/battery-agm-fullriver-dc50-12b-12v-50ah |
| Deep-cycle battery Fullriver HC14V50 14V 50Ah AGM | 14 | 50 | 570 | 260×164×183 | AGM |  | 450,02 | — | https://baterias.com/gb/battery-fullriver-hc14v50-14v-50ah-570-cca |
| Marine battery Exide EN500 12V 50Ah | 12 | 50 | 450 | 207×175×190 | PLOMO/ACIDO |  | 94,69 | — | https://baterias.com/gb/battery-exide-en500-12v-50ah-450a |
| Marine battery Fullriver FT610-47 12V 50Ah AGM | 12 | 50 | 610 | 241×175×190 | AGM |  | 267,64 | — | https://baterias.com/gb/battery-fullriver-ft610-47-12v-50ah-610a |
| Marine battery Fullriver DCG50-12 12V 50Ah AGM | 12 | 50 | 0 | 241×175×190 | AGM |  | 233,82 | — | https://baterias.com/gb/battery-fullriver-dcg50-12-12v-50ah |
| Deep-cycle battery Fullriver HC16V50 16V 50Ah AGM | 16 | 50 | 570 | 260×164×183 | AGM |  | 494,08 | — | https://baterias.com/gb/battery-fullriver-hc16v50-16v-50ah-570-cca |
| Deep-cycle battery Fullriver HC50 12V 50Ah AGM | 12 | 50 | 560 | 241×175×190 | AGM |  | 377,33 | — | https://baterias.com/gb/battery-fullriver-hc50-12v-50ah-560-cca |
| Deep-cycle battery Long WP50-12 12V 50Ah AGM | 12 | 50 | 0 | 199×166×171 | AGM |  | 144,67 | — | https://baterias.com/gb/battery-long-wp50-12-12v-50ah |
| Deep-cycle battery Long WP50-12N 12V 50Ah AGM | 12 | 50 | 0 | 199×166×171 | AGM |  | 144,67 | — | https://baterias.com/gb/battery-long-wp50-12n-12v-50ah |
| Deep-cycle battery Q-battery 12LCP-50 12V 50Ah AGM | 12 | 50 | 0 | 198×166×171 | AGM |  | 199,49 | — | https://baterias.com/gb/battery-q-battery-12lcp-50-12v-50ah |
| Car battery Exide EB505 12V 50Ah 360A | 12 | 50 | 360 | 200×173×222 | PLOMO/ACIDO |  | 96,47 | — | https://baterias.com/gb/battery-exide-eb505-12v-50ah-360a |
| Marine battery Exide EV640 12V 50Ah Litio | 12 | 50 | 0 | 308×168×211 | LifePo4 BT |  | 929,96 | — | https://baterias.com/gb/battery-exide-ev640-128v-50ah-640wh |
| Marine battery Exide EV1300/24 25V 50Ah Litio | 25 | 50 | 0 | 307×170×216 | LifePo4 BT |  | 1757,15 | — | https://baterias.com/gb/battery-exide-ev130024-256v-50ah-1300wh |

## Frequently asked questions

### How much does a 50Ah battery cost?
Between 47.04 € and 1757.15 €, VAT included, depending on technology (AGM, lead-acid, GEL) and brand. Price grows with cold cranking amps (CCA) and Start-Stop technologies such as EFB or AGM.

### Can I fit a battery with more capacity than 50Ah?
Yes, as long as the dimensions and terminal layout match your tray and the CCA is equal or higher than the original. What you should never do is fit LESS capacity than the manufacturer specifies.

### What sizes do 50Ah batteries usually have?
The most common sizes for this rating are 207x175x190 · 199x166x171 · 254x175x200 (length × width × height, in mm). Always check your tray before buying: each product page lists exact dimensions.

### AGM, EFB or conventional for my car?
It depends on the equipment: with advanced Start-Stop (regenerative braking) fit AGM; with basic Start-Stop, EFB — or AGM, never less —; without Start-Stop a quality conventional battery is enough. On this page you can filter by technology to see only the ones that suit your case.

### How do I know which polarity I need?
Look at your current battery from the front with the terminals on the far side: if the positive (+) sits on the right it is right polarity; on the left, left polarity. Every card shows the polarity and you can filter by it above — with the wrong polarity the cables will not reach the terminal.

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Updated: 2026-07-26 · https://baterias.com/gb/batteries-50ah