# Kronobat ES45-12 · Electric wheelchair battery 12V 45Ah

![Kronobat ES45-12 · Electric wheelchair battery 12V 45Ah](https://bateriasonline.es/2154-home_default/kronobat-es45-12.jpg)

> Kronobat ES45-12: 45 Ah electric wheelchair battery, 198×166×171 mm, AGM. Equivalent to MK Battery ES40-12 and MK Battery M40-12 SLD M.

**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-es45-12
- **Language**: en
- **Brand**: Kronobat
- **Reference**: BOL-KRONOBAT-ES45-12
- **MPN**: ES45-12
- **Last updated**: 2026-11-06

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Kronobat |
| Range | AGM DEEP CYCLE |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 45 Ah |
| Length | 198 mm |
| Width | 166 mm |
| Height | 171 mm |
| Weight | 14.47 kg |
| Terminal type | F4 |

## Quick description

The Kronobat ES45-12 is an electric wheelchair battery with 12 V and 45 Ah, measuring 198 × 166 × 171 mm.

## Description

## Who the Kronobat ES45-12 is for

The Kronobat ES45-12 is made for powered wheelchairs. With 45 Ah per battery, the ES45-12 is designed for a full charge every night.
The ES45-12 belongs to the Kronobat AGM DEEP CYCLE range. [More Kronobat batteries](https://bateriasonline.es/en/kronobat-batteries)

## Equivalents and alternatives to the Kronobat ES45-12

Other AGM batteries that fit the ES45-12's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| MK Battery ES40-12 | AGM | 45 Ah | 198.1 × 166.1 × 170.9 |
| MK Battery M40-12 SLD M | AGM | 45 Ah | 198.1 × 166.1 × 170.9 |
| Long WP45-12 | AGM | 45 Ah | 199 × 166 × 171 |
| Long WP45-12N | AGM | 45 Ah | 199 × 166 × 171 |
| Long WP45-12NE | AGM | 45 Ah | 199 × 166 × 171 |
| MK Battery M45-12 SLD M | AGM | 45 Ah | 198.9 × 166.1 × 170.9 |

## Kronobat ES45-12 vs ES50-12 and ES34-12

How the ES45-12 compares with Kronobat batteries of similar size and capacity:

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

- Kronobat ES50-12: 5 Ah more, the same dimensions.
- Kronobat ES34-12: 11 Ah less, a different case (197 × 131 × 180 mm).

## What it means that the ES45-12 is AGM

Inside, the ES45-12 has glass fibre separators (AGM) that hold the electrolyte. The ES45-12 needs a charger with an AGM mode that does not exceed 14.7 V.

## What to look at before buying the ES45-12

- Measure the space: the ES45-12 takes up 198 × 166 × 171 mm.
- Your current battery should say about 45 Ah; a little more is also fine.

## Part numbers and codes for the Kronobat ES45-12

This is how the Kronobat ES45-12 appears on the label and in parts catalogues:

| Commercial reference | ES45-12 |
|---|---|
| Terminal type | F4 |
| Not to be confused with | Kronobat ES5-12 (5 Ah), Kronobat ES55-12 (55 Ah), Kronobat ES75-12 (75 Ah) |

## Frequently asked questions about the Kronobat ES45-12

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

Compared with the ES45-12, the Kronobat ES50-12 has 5 Ah more. 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 ES45-12 weigh?

14.47 kg, with 45 Ah of capacity. For reference, the Kronobat ES50-12 (50 Ah) weighs 15.06 kg.

### Which battery is equivalent to the Kronobat ES45-12?

Only other AGM batteries with its dimensions and polarity: MK Battery ES40-12, MK Battery M40-12 SLD M and Long WP45-12. Neither an EFB nor a conventional battery replaces the ES45-12.

## More batteries to compare with the ES45-12

- [All electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [The whole Kronobat range](https://bateriasonline.es/en/kronobat-batteries)
- [MK Battery ES40-12](https://bateriasonline.es/en/mk-battery-es40-12) · 45 Ah, 198.1×166.1×170.9 mm
- [MK Battery M40-12 SLD M](https://bateriasonline.es/en/mk-battery-m40-12-sld-m) · 45 Ah, 198.1×166.1×170.9 mm

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