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Ritar RA12-33 · Wheelchair battery 12V 35Ah AGM

Specifications

BrandRITAR
Part numberRA12-33
Voltage (V)12
Capacity (C20)35Ah (c20)
Capacity (C10)33Ah (c10)
TechnologyAGM
Length195.00 mm
Width130.00 mm
Height180.00 mm
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Price: €131.30
VAT included
Quantity
  • 24-48h delivery
  • 14-day returns
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Brand: Ritar batteries Part number: RA12-33

Ritar RA12-33 12V 35Ah is a sealed AGM/GEL battery for daily mobility use: maintenance-free, no risk of spills, and thousands of useful cycles well beyond a starter battery.

Why this wheelchair battery?

  • Daily cycling without wearhandles deep discharges without losing capacity
  • Sealed AGM/GELno maintenance, no risk of spills
  • Thousands of useful cyclesover its full lifetime
Voltage
12 V
Capacity
35 Ah C20
Dimensions
195×130×180 mm
Technology
AGM
Weight
9,6 kg
Model
RITAR RA
Logo Ritar

Leisure battery Ritar RA12-33 RA 35Ah 12V

12VVoltage
35AhCapacity
9.60kgWeight

The 12 V, 35 Ah Ritar RA12-33 battery from the RA range with AGM technology is designed for motorhomes, caravans and campers that need power off-grid. It replaces the original battery without adaptation in motorhomes and caravans with a 195 × 130 × 180 mm format: same 35 Ah capacity.

  • AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
  • Power for fridge, lighting, water pump and USB off-grid.
  • Sealed and gas-free: suitable for installation inside the living area.
  • Low self-discharge during months of storage.

What the Ritar RA12-33 is for

As a leisure battery, the Ritar RA12-33 is discharged and recharged every travelling day; avoid discharges below 50% to extend its life. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 9.60 kg and M6 terminals.

Will it fit your current battery tray?

The Ritar RA12-33 is made in the 195 × 130 × 180 mm format and weighs 9.60 kg. It uses M6 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.

Ritar: the maker behind the RA12-33

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 RA12-33: RA range and AGM technology

The RA12-33 is part of the Ritar RA range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.

In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.

Care and maintenance

Avoid routinely discharging the leisure battery below 50% and recharge it fully after every trip. During months of storage, keep it charged with a mains charger or a small solar panel; a battery left discharged for weeks loses capacity permanently.

Official warranty

The Ritar RA12-33 comes with the manufacturer's official warranty against manufacturing defects. Avoid repeated full discharges: they shorten its life and are not covered.

Shipping, delivery and returns

Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.

  • Reference
    BCOM-RITAR-RA12-33

Data sheet

  • Brand
    RITAR
  • Reference
    RA12-33
  • Model
    RITAR RA
  • Voltage (V)
    12
  • Length
    195.00 mm
  • Width
    130.00 mm
  • Height
    180.00 mm
  • Technology
    AGM
  • Terminal type
    M6
  • Capacity (C20)
    35Ah (c20)
  • Capacity (C10)
    33Ah (c10)

Specific References

  • MPN
    RA12-33

Comparison: Ritar RA12-33 vs equivalents — alternatives with the same dimensions, Ah and CCA

The Ritar RA12-33 is interchangeable with these equivalent references: MU-1 SLD M-2 (MK Powered).

Product Specifications Technology Price
Ritar RA12-33 Ritar RA12-33 This battery 12V 35Ah AGM €131.30
MK Powered MU-1 SLD M-2 MK Powered MU-1 SLD M-2 12V 35Ah AGM €141.60

Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.

Recommended accessories — complement the Ritar RA12-33 with a charger or tester

Frequently asked questions

Is the Ritar RA12-33 an AGM battery and what are the benefits of AGM?

Yes. The RA12-33 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 change this battery step by step?

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 our blog. 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 RA12-33 battery last?

Expected lifespan of the Ritar RA12-33 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 RA12-33 battery?

Dimensions (length × width × height) are 195×130×180 mm — also written as 195x130x180 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.

Will the Ritar RA12-33 battery fit my caravan?

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 RA12-33 typically fits a wide range of European vehicles thanks to its standard DIN case format.

What are the equivalents of the RA12-33 model?

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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