Mk powered ES12-6FR HR · Wheelchair battery 6V 12Ah AGM
Specifications
| Brand | MK POWERED |
|---|---|
| Part number | ES12-6FR HR |
| Voltage (V) | 6 |
| Capacity (C20) | 12Ah (c20) |
| Capacity (C5) | 10.2Ah (c5) |
| Technology | AGM |
| Length | 150.90 mm |
| Width | 50.00 mm |
| Height | 99.10 mm |
€38.70
VAT included
4,73/5★★★★★14 reviewsVerified purchases
- ★★★★Julian Duran:
Excelente asesoramiento
- ★★★★★Adrian Serrano:
Pedí la batería en Viernes y el Lunes ya la tenía aquí
- ★★★★★Jordi Ortiz:
Ya me había encantado que me ayudaran con la elección de la MK ES12-6FR HR, pero es que encima me asesoraron al momento de instalarla. To…
MK Powered ES12-6FR HR 6V 12Ah is a sealed AGM/GEL battery for daily mobility use: maintenance-free, no risk of spills, and thousands of useful cycles well beyond a starter battery.
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
6 V
Capacity
12 Ah
Dimensions
150×50×99 mm
Technology
AGM
Weight
1,84 kg
Model
MK AGM
Mobility battery MK Powered ES12-6FR HR Mk AGM 12Ah 6V
6VVoltage
12AhCapacity
1.84kgWeight
The MK Powered ES12-6FR HR with AGM technology delivers 12 Ah at 6 V with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Measuring 150 × 50 × 99 mm, it is the direct replacement for power wheelchairs and mobility scooters fitted from the factory with a 12 Ah battery of this format.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Sealed AGM/GEL: safe indoors and in transport.
- No maintenance, no water top-ups.
- Approved for air and sea transport (VRLA).
Dimensions, polarity and mounting
In terms of format, the MK Powered ES12-6FR HR measures 150 × 50 × 99 mm (length × width × height) and weighs 1.84 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.
What the MK Powered ES12-6FR HR is for
The MK Powered ES12-6FR HR is designed for power wheelchairs, mobility scooters and light electric vehicles. Wheelchairs and scooters normally use two identical batteries in series: replace them together. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 1.84 kg.
The MK Powered ES12-6FR HR: Mk AGM range and AGM technology
The ES12-6FR HR is part of the MK Powered Mk AGM 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 means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly.
MK Powered: the maker behind the ES12-6FR HR
MK Battery (MK Powered) is the US specialist in AGM and GEL batteries for mobility: power wheelchairs, scooters and medical equipment rely on its batteries for safety and cycle life. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
Warranty and coverage
The MK Powered ES12-6FR HR 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.
How to make it last longer
Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.
Shipping, delivery and returns
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-MK-ES12-6FR HR
Data sheet
- Brand
- MK
- Reference
- ES12-6FR HR
- Model
- MK AGM
- Voltage (V)
- 6
- Length
- 150.90 mm
- Width
- 50.00 mm
- Height
- 99.10 mm
- Weight
- 1.84 Kgs
- Technology
- AGM
- Capacity (C20)
- 12Ah (c20)
- Capacity (C5)
- 10.2Ah (c5)
Specific References
- MPN
- ES12-6FR HR
4,73/5
Verified purchasesLatest verified reviews
★★★★★Julian Duran
06/05/2026Gracias por su asesoramiento
Excelente asesoramiento
★★★★★Adrian Serrano
26/01/2026La batería llegó a tiempo
Pedí la batería en Viernes y el Lunes ya la tenía aquí
★★★★★Jordi Ortiz
08/01/2026Ayudan con la instalación
Ya me había encantado que me ayudaran con la elección de la MK ES12-6FR HR, pero es que encima me asesoraron al momento de instalarla. Todo de 10
★★★★★Fernando Marin
03/01/2026Buen sitio
Resultó facil instalar la batería en mi coche gracias a su asesoría. Web 100% recomendada
Recommended accessories
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.
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.
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.
Step 3. Disconnect the negative (−) first
With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.
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.
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.
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.
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.
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 ES12-6FR HR model AGM? What does this technology offer?
Yes. The ES12-6FR HR from MK Powered 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 MK Powered ES12-6FR HR 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 many years does this battery last?
Expected lifespan of the MK Powered ES12-6FR HR 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 dimensions of the MK Powered ES12-6FR HR battery?
Dimensions (length × width × height) are 151×50×99 mm — also written as 151x50x99 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 ES12-6FR HR 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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