# Wheelchair battery Kronobat ES9-12 12V 9Ah AGM

![Wheelchair battery Kronobat ES9-12 12V 9Ah AGM](https://baterias.com/3361-home_default/best-price-battery-12v-9ah-agm-es9-12.jpg)

> Kronobat ES9-12 wheelchair battery 12V 9Ah AGM. AGM DEEP CYCLE range. Dimensions 151×65×102 mm. For daily wheelchair use.

**Category:** [Mobility Vehicle Batteries](https://baterias.com/gb/batteries-for-mobility-vehicles) → [KRONOBAT](https://baterias.com/gb/kronobat)

- **Canonical URL**: https://baterias.com/gb/best-price-battery-12v-9ah-agm-es9-12
- **Language**: en-GB
- **Brand**: KRONOBAT
- **Reference**: BCOM-KRONOBAT-ES9-12
- **MPN**: ES9-12
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Reference | ES9-12 |
| Model | AGM DEEP CYCLE |
| Voltage (V) | 12 V |
| Largo | 151 mm |
| Ancho | 65 mm |
| Alto | 102 mm |
| Peso | 2.69 kg |
| Tecnología | AGM |
| Terminal type | F2 |
| Capacity (C20) | 9 Ah (c20) |

## Quick description

**Kronobat ES9-12 12V 9Ah** is a deep-cycle battery for wheelchairs and mobility scooters, optimised to be discharged and recharged daily down to 80 % DOD without losing range.

## Why this wheelchair battery?

- **Daily cycling without wear** handles deep discharges without losing capacity
- **Sealed AGM/GEL** no maintenance, no risk of spills
- **Thousands of useful cycles** over its full lifetime

🔌 Voltage
12 V

⚡ Capacity
9 Ah C20

📏 Dimensions
151×65×102 mm

⚙️ Technology
AGM

⚖️ Weight
2,69 kg

🏷️ Model
AGM DEEP CYCLE

## Description

## Mobility battery Kronobat ES9-12 AGM Deep Cycle 9Ah 12V

12*V* Voltage
9*Ah* Capacity
2.69*kg* Weight

The **Kronobat ES9-12** with AGM technology delivers **9 Ah** at **12 V** with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Its 151 × 65 × 102 mm make it the exact replacement for the 9 Ah battery fitted as standard to many power wheelchairs and mobility scooters.
- Approved for air and sea transport (VRLA).
- No maintenance, no water top-ups.
- Sealed AGM/GEL: safe indoors and in transport.
- AGM: faster recharging and better cycle resistance than a conventional battery.

### What the Kronobat ES9-12 is for

With 9 Ah, the Kronobat ES9-12 offers the daily range that power wheelchairs, mobility scooters and light electric vehicles need, with a sealed construction that is safe indoors. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 2.69 kg and F2 terminals.

### Dimensions, polarity and mounting

The Kronobat ES9-12 is made in the 151 × 65 × 102 mm format and weighs 2.69 kg. It uses F2 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.

### The Kronobat ES9-12: AGM Deep Cycle range and AGM technology

The ES9-12 is part of the Kronobat **AGM Deep Cycle** range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.
AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.

### Why choose Kronobat batteries

Kronobat is the exclusive brand of baterias.com: batteries made to the same production standards as the leading brands, with a value for money that is hard to match and an official warranty. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

### Manufacturer's warranty

The Kronobat ES9-12 comes with the **manufacturer's official warranty** against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.

### Usage and maintenance tips

Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together.

### Shipping, delivery and returns

Orders placed **before [[ks:cutoff]]** 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 **[[ks:return_days]] 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.

## Frequently asked questions

### Is the Kronobat ES9-12 an AGM battery and what are the benefits of AGM?

Yes. The ES9-12 from Kronobat 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 devices 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 devices 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 devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How long does the Kronobat ES9-12 battery last?

Expected lifespan of the Kronobat ES9-12 is 5 to 8 years in mild-climate device 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 measurements of the ES9-12 model?

Dimensions (length × width × height) are 151×65×102 mm — also written as 151x65x102 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### Which interchangeable batteries are there for this one?

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 devices. See the "Equivalents" section to view recommended options at the same performance level.


## Compatible vehicles

This battery fits 1125 vehicles. Most searched:

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- [Toshiba UC1A1A006C6TB](https://baterias.com/gb/batteries-for-sai-ups/toshiba/uc1a1a006c6tb)
- [Toshiba UH3G2L036C61T](https://baterias.com/gb/batteries-for-sai-ups/toshiba/uh3g2l036c61t)
- [Tripp Lite - Smart Series SMART2200RMXL2UP](https://baterias.com/gb/batteries-for-sai-ups/tripp-lite-smart-series/smart2200rmxl2up)
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- [Apc Part Number Cross Reference RBC105](https://baterias.com/gb/batteries-for-sai-ups/apc-part-number-cross-reference/rbc105)
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- [Belkin F6C350-USB](https://baterias.com/gb/batteries-for-sai-ups/belkin/f6c350-usb)
- [Best Power - Fortress - Rackmount LI1050VA](https://baterias.com/gb/batteries-for-sai-ups/best-power-fortress-rackmount/li1050va)
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## Equivalent batteries

- [MK POWERED ES7-12FR T2](https://baterias.com/gb/battery-mk-es7-12fr-t2-12v-72ah)
- [MK POWERED ES9-12](https://baterias.com/gb/battery-mk-es9-12-agm-12v-9ah)

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-10-20*