# Kronobat ES3-12 · Electric wheelchair battery 12V 3Ah

![Kronobat ES3-12 · Electric wheelchair battery 12V 3Ah](https://bateriasonline.es/2103-home_default/kronobat-es3-12.jpg)

> Kronobat ES3-12: 3 Ah electric wheelchair battery, 134×67×65.5 mm, AGM. Equivalent to MK Battery ES3-12. Price on request: ask for a free 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-es3-12
- **Language**: en
- **Brand**: Kronobat
- **Reference**: BOL-KRONOBAT-ES3-12
- **MPN**: ES3-12
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Kronobat |
| Range | AGM DEEP CYCLE |
| Application | Electric wheelchairs |
| Technology | AGM |
| Voltage | 12 V |
| Capacity | 3 Ah |
| Length | 134 mm |
| Width | 67 mm |
| Height | 65.5 mm |
| Weight | 1.3 kg |
| Terminal type | F1 |

## Quick description

Kronobat ES3-12: electric wheelchair battery with 12 V and 3 Ah, measuring 134 × 67 × 65.5 mm.

## Description

## Where the Kronobat ES3-12 fits

The Kronobat ES3-12 is made for powered wheelchairs. With 3 Ah per battery, the ES3-12 is designed for a full charge every night.
The ES3-12 belongs to the Kronobat AGM DEEP CYCLE range. [The full range of Kronobat batteries](https://bateriasonline.es/en/kronobat-batteries)

## What it means that the ES3-12 is AGM

Inside, the ES3-12 has glass fibre separators (AGM) that hold the electrolyte. It is fitted in cars with advanced Start-Stop and in deep-cycle equipment.

## Equivalents and alternatives to the Kronobat ES3-12

Other AGM batteries that fit the ES3-12's tray with the same polarity: an AGM can only be replaced by another AGM.

| Model | Technology | Capacity | Dimensions (mm) |
|---|---|---|---|
| MK Battery ES3-12 | AGM | 3 Ah | 134.1 × 67.1 × 65.5 |

## Part numbers and codes for the Kronobat ES3-12

Shops, garages and catalogues identify the ES3-12 with these codes:

| Commercial reference | ES3-12 |
|---|---|
| Terminal type | F1 |
| Not to be confused with | Kronobat ES5-12 (5 Ah), Kronobat ES7-12 (7 Ah), Kronobat ES9-12 (9 Ah) |

## Before ordering the ES3-12, check this

- Capacity of the ES3-12: 3 Ah; the same as your current battery or slightly more is fine.
- The ES3-12 needs 134 × 67 × 65.5 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Kronobat ES3-12

### How much does the Kronobat ES3-12 weigh?

1.3 kg, with 3 Ah of capacity.

### Which battery is equivalent to the Kronobat ES3-12?

Only other AGM batteries with its dimensions and polarity: MK Battery ES3-12. Neither an EFB nor a conventional battery replaces the ES3-12.

### Which charger does the Kronobat ES3-12 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.

## More batteries to compare with the ES3-12

- [All electric wheelchair batteries](https://bateriasonline.es/en/electric-wheelchair-batteries)
- [The whole Kronobat range](https://bateriasonline.es/en/kronobat-batteries)
- [MK Battery ES3-12](https://bateriasonline.es/en/mk-battery-es3-12) · 3 Ah, 134.1×67.1×65.5 mm

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