Kronobat ES45-12 · Wheelchair battery 12V 45Ah AGM

Batería Kronobat ES45-12 45Ah - 1
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  • Batería Kronobat ES45-12 45Ah - 1

Specifications

BrandKRONOBAT
Part numberES45-12
Voltage (V)12
Capacity (C20)45Ah (c20)
TechnologyAGM
Length198.00 mm
Width166.00 mm
Height171.00 mm
Weight14.47 Kgs
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Kronobat ES45-12 12V 45Ah 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 wearhandles deep discharges without losing capacity
  • Sealed AGM/GELno maintenance, no risk of spills
  • Thousands of useful cyclesover its full lifetime
Voltage
12 V
Capacity
45 Ah C20
Dimensions
198×166×171 mm
Technology
AGM
Weight
14,47 kg
Model
AGM DEEP CYCLE
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Mobility battery Kronobat ES45-12 AGM Deep Cycle 45Ah 12V

12VVoltage
45AhCapacity
14.47kgWeight

The 12 V, 45 Ah Kronobat ES45-12 from the AGM Deep Cycle range with AGM technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. Its 198 × 166 × 171 mm make it the exact replacement for the 45 Ah battery fitted as standard to many power wheelchairs and mobility scooters.

  • Sealed AGM/GEL: safe indoors and in transport.
  • AGM: faster recharging and better cycle resistance than a conventional battery.
  • Approved for air and sea transport (VRLA).
  • No maintenance, no water top-ups.

What the Kronobat ES45-12 is for

With 45 Ah, the Kronobat ES45-12 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 14.47 kg and F4 terminals.

Dimensions, polarity and mounting

It has external dimensions of 198 × 166 × 171 mm and weighs 14.47 kg. It uses F4 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.

Kronobat: the maker behind the ES45-12

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. All the Kronobat batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

The Kronobat ES45-12: AGM Deep Cycle range and AGM technology

Within the Kronobat catalogue, the AGM Deep Cycle series groups the references designed for this use. The ES45-12 is the 45 Ah model of that family, with the same performance as its siblings in other sizes.

In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.

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.

Official warranty

The Kronobat ES45-12 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.

When you get it and how to return it

Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic and Canary Islands and the rest of the European Union allow 3 to 5 working days. You have 14 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.

BCOM-KRONOBAT-ES45-12

Data sheet

Brand
Reference
ES45-12
Model
AGM DEEP CYCLE
Voltage (V)
12
Length
198.00 mm
Width
166.00 mm
Height
171.00 mm
Weight
14.47 Kgs
Technology
AGM
Terminal type
F4
Capacity (C20)
45Ah (c20)

Specific References

MPN
ES45-12

Comparison: Kronobat ES45-12 vs equivalents — alternatives with the same dimensions, Ah and CCA

The Kronobat ES45-12 is interchangeable with these equivalent references: DCG40-12 (Fullriver), M45-12 SLD M (MK Powered), RA12-40B (Ritar).

Product Specifications Technology Price
Kronobat ES45-12 Kronobat ES45-12 This battery 12V 45Ah AGM
Fullriver DCG40-12 Fullriver DCG40-12 ★ 4,8 12V 40Ah AGM €175.90
MK Powered M45-12 SLD M MK Powered M45-12 SLD M ★ 4,8 12V 45Ah AGM €149.50
Ritar RA12-40B Ritar RA12-40B ★ 4,8 12V 42Ah AGM €142.10

Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.

Recommended accessories — complement the Kronobat ES45-12 with a charger or tester

How to change the battery

Guide to replace a cyclic battery (12V 4-30Ah) for UPS, mobility scooter, alarm or backup device. Estimated time 10-15 minutes. Important: discharge residual voltage before handling.

⏱ 10-15 min🛠 Tools: Screwdriver or small wrench (3-5 mm typical) · Protective gloves
  1. Step 1. Power off and unplug the device

    Unplug the device (UPS, scooter, alarm) and leave it off for at least 30 seconds to discharge residual capacitor voltage. Work on an insulating surface.

  2. Step 2. Locate the battery compartment

    Usually under the seat (mobility scooter/wheelchair), in the rear module of the UPS, or behind a side panel with screws. Check the device manual for unusual models.

  3. Step 3. Disconnect the negative (−) first

    With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.

  4. Step 4. Disconnect the positive (+) terminal

    Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.

  5. Step 5. Remove the old battery

    Typical weight 1-15 kg depending on capacity. Many cyclic batteries are AGM/GEL — keep them upright. Do NOT invert the battery: even sealed, residue may exist.

  6. Step 6. Fit the new battery

    Same orientation and type (AGM, GEL or flooded). Polarity must match the device, not a chassis (this is not a car). Make sure terminals do not touch metal parts of the compartment.

  7. Step 7. Connect the positive (+) first

    On cyclic devices the order is reversed compared to cars: positive (+) first, negative (−) afterwards. Tighten without forcing — the plastic terminal housing of cyclic batteries damages easily.

  8. Step 8. Initial charge before first use

    Cyclic batteries ship at 60-80%. Before first use, connect the device charger for 8-12 hours (or use an AGM/GEL smart charger if available). This avoids short cycles and extends lifespan.

Frequently asked questions

Is the Kronobat ES45-12 an AGM battery and what are the benefits of AGM?

Yes. The ES45-12 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 is the Kronobat ES45-12 battery installed in the vehicle?

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 this page. 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 ES45-12 battery last?

Expected lifespan of the Kronobat ES45-12 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 ES45-12 model?

Dimensions (length × width × height) are 198×166×171 mm — also written as 198x166x171 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.

What are the equivalents of the ES45-12 model?

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.


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