# Ritar RA12-33 · Electric wheelchair battery 12V 35Ah

![Ritar RA12-33 · Electric wheelchair battery 12V 35Ah](https://bateriasonline.es/2944-home_default/ritar-ra12-33.jpg)

> Ritar RA12-33: 35 Ah electric wheelchair battery, 195×130×180 mm, AGM. Equivalent to MK Battery ES33-12 and MK Battery MU-1 SLD M.

**Category:** [Electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries) → [Ritar](https://bateriasonline.es/en/ritar-batteries)

- **Canonical URL**: https://bateriasonline.es/en/ritar-ra12-33
- **Language**: en
- **Brand**: Ritar
- **Reference**: BOL-RITAR-RA12-33
- **MPN**: RA12-33
- **Price**: 128,48 € (VAT incl., Spain)
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Ritar |
| Range | RITAR RA |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 35 Ah |
| Length | 195 mm |
| Width | 130 mm |
| Height | 180 mm |
| Weight | 9.6 kg |
| Terminal type | M6 |

## Quick description

Ritar RA12-33: electric wheelchair battery with 12 V and 35 Ah, measuring 195 × 130 × 180 mm.

## Description

## The Ritar RA12-33 at a glance

The Ritar RA12-33 is made for powered wheelchairs. With 35 Ah per battery, the RA12-33 is designed for a full charge every night.
The RA12-33 belongs to the Ritar RITAR RA range. [More Ritar batteries](https://bateriasonline.es/en/ritar-batteries)

## Equivalents and alternatives to the Ritar RA12-33

Other AGM batteries that fit the RA12-33's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| MK Battery ES33-12 | AGM | 35 Ah | 196.1 × 130 × 180.1 |
| MK Battery MU-1 SLD M | AGM | 35 Ah | 196.1 × 130 × 180.1 |
| MK Battery MU-1 SLD M-33 | AGM | 33 Ah | 196.1 × 130 × 180.1 |
| MK Battery MU-1 SLD M-2 | AGM | 35 Ah | 197 × 131 × 180 |
| Long U1-34H | AGM | 34 Ah | 197 × 131 × 180 |
| Long U1-34HE | AGM | 34 Ah | 197 × 131 × 180 |

## Ritar RA12-33 vs RA12-40B

What sets the RA12-33 apart from its neighbours in the Ritar range:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Ritar RA12-33 (this one) | 35 Ah | 195 × 130 × 180 | 9.6 kg |
| Ritar RA12-40B | 42 Ah | 198 × 166 × 171 | 11.5 kg |

- Ritar RA12-40B: 7 Ah more, a different case (198 × 166 × 171 mm).

## AGM technology in the RA12-33

Inside, the RA12-33 has glass fibre separators (AGM) that hold the electrolyte. The RA12-33 needs a charger with an AGM mode that does not exceed 14.7 V.

## Before ordering the RA12-33, check this

- Length, width and height of the RA12-33: 195 × 130 × 180 mm.
- Your current battery should say about 35 Ah; a little more is also fine.

## Part numbers and codes for the Ritar RA12-33

This is how the Ritar RA12-33 appears on the label and in parts catalogues:

| Commercial reference | RA12-33 |
|---|---|
| Terminal type | M6 |

## Frequently asked questions about the Ritar RA12-33

### RA12-33 or RA12-40B: which one suits me?

Compared with the RA12-33, the Ritar RA12-40B has 7 Ah more. With 42 Ah, the RA12-40B runs longer between charges than the RA12-33 (35 Ah). Mind the space: the RA12-40B measures 198 × 166 × 171 mm.

### How much does the Ritar RA12-33 weigh?

9.6 kg, with 35 Ah of capacity. For reference, the Ritar RA12-40B (42 Ah) weighs 11.5 kg.

### Which battery is equivalent to the Ritar RA12-33?

Only other AGM batteries with its dimensions and polarity: MK Battery ES33-12, MK Battery MU-1 SLD M and MK Battery MU-1 SLD M-33. Neither an EFB nor a conventional battery replaces the RA12-33.

### Which charger does the Ritar RA12-33 need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

## Other options if you are unsure about the RA12-33

- [More electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [Full Ritar catalogue](https://bateriasonline.es/en/ritar-batteries)
- [MK Battery ES33-12](https://bateriasonline.es/en/mk-battery-es33-12) · 35 Ah, 196.1×130×180.1 mm
- [MK Battery MU-1 SLD M](https://bateriasonline.es/en/mk-battery-mu-1-sld-m) · 35 Ah, 196.1×130×180.1 mm

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