Ritar RA12-145 · Caravan battery 12V 153Ah AGM
Specifications
| Brand | RITAR |
|---|---|
| Part number | RA12-145 |
| Voltage (V) | 12 |
| Capacity (C20) | 153Ah (c20) |
| Capacity (C10) | 145Ah (c10) |
| Technology | AGM |
| Length | 340.00 mm |
| Width | 173.00 mm |
| Height | 285.00 mm |
€481.95
VAT included
4,87/5★★★★★11 reviewsVerified purchases
- ★★★★★Salvador Perez:
Para los que no entendemos de baterías se agradece su ayuda
- ★★★★★Juan Jose Lorenzo:
Al final fue facil la instalación gracias a su ayuda
- ★★★★★Rafael Castillo:
No tenía ni idea de cómo instalar la batería en mi coche y me ayudaron de principio a fin. Muchas gracias
Ritar RA12-145 12V 153Ah is a leisure battery for campers, motorhomes and caravans. Designed to power the entire interior kit (fridge, heater, water pump, USB, LED lighting) for several days off-grid, with no need to plug into a campsite hookup.
Why this caravan battery?
- Real off-grid autonomyno campsite hookup needed
- Lasts the whole seasonhandles daily discharges without capacity loss
- Powers it all at oncefridge, water pump, LED and USB without issues
Voltage
12 V
Capacity
153 Ah
Dimensions
340×173×285 mm
Technology
AGM
Weight
41,5 kg
Model
RITAR RA
Leisure battery Ritar RA12-145 RA 153Ah 12V
12VVoltage
153AhCapacity
41.50kgWeight
For motorhomes, caravans and campers that need power off-grid, the Ritar RA12-145 from the RA range provides 153 Ah of energy with AGM technology. It replaces the original battery without adaptation in motorhomes and caravans with a 340 × 173 × 285 mm format: same 153 Ah capacity.
- Sealed and gas-free: suitable for installation inside the living area.
- Low self-discharge during months of storage.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Power for fridge, lighting, water pump and USB off-grid.
What the Ritar RA12-145 is for
The Ritar RA12-145 is designed for motorhomes, caravans and campers that need power off-grid: it powers fridge, lights, pump and chargers for several days off-grid. Its 153 Ah capacity sets the available autonomy. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 41.50 kg and M8 terminals.
Will it fit your current battery tray?
In terms of format, the Ritar RA12-145 measures 340 × 173 × 285 mm (length × width × height) and weighs 41.50 kg. It uses M8 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.
What Ritar does differently
With more than twenty years making sealed lead batteries, Ritar offers general-purpose, long-life, high-rate and front-terminal ranges for every stationary application. All the Ritar batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
The Ritar RA12-145: RA range and AGM technology
The RA is the Ritar range the RA12-145 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 (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.
Usage and maintenance tips
Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Avoid routinely discharging the leisure battery below 50% and recharge it fully after every trip.
Manufacturer's warranty
The Ritar RA12-145 comes with the manufacturer's official warranty against manufacturing defects. Avoid repeated full discharges: they shorten its life and are not covered.
When you get it and how to return it
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
BCOM-RITAR-RA12-145
Data sheet
- Brand
- RITAR
- Reference
- RA12-145
- Model
- RITAR RA
- Voltage (V)
- 12
- Length
- 340.00 mm
- Width
- 173.00 mm
- Height
- 285.00 mm
- Technology
- AGM
- Terminal type
- M8
- Capacity (C20)
- 153Ah (c20)
- Capacity (C10)
- 145Ah (c10)
Specific References
- MPN
- RA12-145
4,87/5
Verified purchasesLatest verified reviews
★★★★★Salvador Perez
19/05/2026Resolvieron mis dudas
Para los que no entendemos de baterías se agradece su ayuda
★★★★★Juan Jose Lorenzo
31/12/2025Ayudan con la instalación
Al final fue facil la instalación gracias a su ayuda
★★★★★Rafael Castillo
29/12/2025Llegó en plazo
No tenía ni idea de cómo instalar la batería en mi coche y me ayudaron de principio a fin. Muchas gracias
★★★★★Mario Garcia
12/10/2025Me asesoraron
Para los que no entendemos de baterias se agradece su ayuda
Recommended accessories
How to change the battery
Guide to replace the leisure battery of your motorhome or caravan. Estimated time 15-25 minutes. Important: isolate the 12V auxiliary system before handling.
Step 1. Switch off 12V equipment and unplug shore power
Turn off fridge, lights, water pump, Truma Mover and other auxiliary loads. Disconnect the 230V shore power and solar panels if any.
Step 2. Locate the leisure battery compartment
On motorhomes usually under the driver/passenger seat, in an outside locker or in the garage area. Verify this is NOT the engine starter battery — that one is up front with the engine.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Loosen the bottom hold-down clamp with the same wrench. Lift the battery carefully (it can weigh 15-25 kg). Clean the tray with a brush and baking soda if there is corrosion.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the charger and auxiliary services
After connecting, check the combi charger (CBE/Schaudt/Nordelettronica) recognises the new battery: voltage should stabilise at 13.2-13.8 V with 230V connected. Test a couple of services (lights + pump) before heading out.
Frequently asked questions
Is this battery AGM? What is it for?
Yes. The RA12-145 from Ritar 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 caravans with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
How do I fit the RA12-145 model in my caravan?
In most caravans 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 this page. 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 — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On caravans with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Ritar RA12-145 battery last?
Expected lifespan of the Ritar RA12-145 is 5 to 8 years in mild-climate caravan 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 Ritar RA12-145 battery?
Dimensions (length × width × height) are 340×173×285 mm — also written as 340x173x285 mm — following the European DIN standard. Always measure the space in your caravan before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Is the RA12-145 valid for my vehicle?
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 RA12-145 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Ritar RA12-145?
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 caravans. See the "Equivalents" section to view recommended options at the same performance level.
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