# Kronobat ES50-12 · Electric wheelchair battery 12V 50Ah

![Kronobat ES50-12 · Electric wheelchair battery 12V 50Ah](https://bateriasonline.es/2158-home_default/kronobat-es50-12.jpg)

> Kronobat ES50-12: 50 Ah electric wheelchair battery, 198×166×171 mm, AGM. Equivalent to Q-Battery 12LCP-50 and Long WP50-12. Ask for a no-obligation quote.

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

- **Canonical URL**: https://bateriasonline.es/en/kronobat-es50-12
- **Language**: en
- **Brand**: Kronobat
- **Reference**: BOL-KRONOBAT-ES50-12
- **MPN**: ES50-12
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Kronobat |
| Range | AGM DEEP CYCLE |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 50 Ah |
| Length | 198 mm |
| Width | 166 mm |
| Height | 171 mm |
| Weight | 15.06 kg |
| Terminal type | M6 |

## Quick description

Kronobat ES50-12: electric wheelchair battery with 12 V and 50 Ah, measuring 198 × 166 × 171 mm.

## Description

## Where the Kronobat ES50-12 fits

The Kronobat ES50-12 is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. The ES50-12 is fitted in pairs: two 12 V batteries in series give the chair's 24 V.
The ES50-12 belongs to the Kronobat AGM DEEP CYCLE range. [See all Kronobat batteries](https://bateriasonline.es/en/kronobat-batteries)

## Equivalents and alternatives to the Kronobat ES50-12

Other AGM batteries that fit the ES50-12's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| Q-Battery 12LCP-50 | AGM | 50 Ah | 198 × 166 × 171 |
| Long WP50-12 | AGM | 50 Ah | 199 × 166 × 171 |
| Long WP50-12N | AGM | 50 Ah | 199 × 166 × 171 |
| Long WP50-12NE | AGM | 50 Ah | 199 × 166 × 171 |
| MK Battery ES50-12 | AGM | 50 Ah | 198.9 × 166.1 × 170.9 |
| MK Battery M50-12 SLD M | AGM | 50 Ah | 198.9 × 166.1 × 170.9 |

## Kronobat ES50-12 vs ES45-12 and ES34-12: which one to choose?

The real differences between the ES50-12 and the closest Kronobat models:

| Model | Capacity | Dimensions (mm) | Weight |
|---|---|---|---|
| Kronobat ES50-12 (this one) | 50 Ah | 198 × 166 × 171 | 15.06 kg |
| Kronobat ES45-12 | 45 Ah | 198 × 166 × 171 | 14.47 kg |
| Kronobat ES34-12 | 34 Ah | 197 × 131 × 180 | 10.48 kg |

- Kronobat ES45-12: 5 Ah less, the same dimensions.
- Kronobat ES34-12: 16 Ah less, a different case (197 × 131 × 180 mm).

## AGM technology in the ES50-12

The ES50-12 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. It withstands many more cycles than a conventional lead battery, at the cost of being more sensitive to overcharging.

## Check this before ordering the Kronobat ES50-12

- Measure the space: the ES50-12 takes up 198 × 166 × 171 mm.
- Your current battery should say about 50 Ah; a little more is also fine.

## Part numbers and codes for the Kronobat ES50-12

The ES50-12 is listed under these codes on labels, in garages and in catalogues:

| Commercial reference | ES50-12 |
|---|---|
| Terminal type | M6 |
| Not to be confused with | Kronobat ES5-12 (5 Ah), Kronobat ES55-12 (55 Ah) |

## Frequently asked questions about the Kronobat ES50-12

### ES50-12 or ES45-12: which one suits me?

Compared with the ES50-12, the Kronobat ES45-12 has 5 Ah less. With 50 Ah, the ES50-12 runs longer between charges than the ES45-12 (45 Ah). Both measure 198 × 166 × 171 mm, so they fit the same tray.

### How much does the Kronobat ES50-12 weigh?

15.06 kg, with 50 Ah of capacity. For reference, the Kronobat ES45-12 (45 Ah) weighs 14.47 kg.

### Which battery is equivalent to the Kronobat ES50-12?

Only other AGM batteries with its dimensions and polarity: Q-Battery 12LCP-50, Long WP50-12 and Long WP50-12N. Neither an EFB nor a conventional battery replaces the ES50-12.

### Which charger does the Kronobat ES50-12 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.

## Keep comparing: alternatives to the ES50-12

- [More electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [The whole Kronobat range](https://bateriasonline.es/en/kronobat-batteries)
- [Q-Battery 12LCP-50](https://bateriasonline.es/en/q-battery-12lcp-50) · 50 Ah, 198×166×171 mm
- [Long WP50-12](https://bateriasonline.es/en/long-wp50-12) · 50 Ah, 199×166×171 mm

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