Mk powered ES20-12C · Wheelchair battery 12V 20Ah AGM
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Wheelchair battery MK Powered ES20-12C 12V 20Ah AGM images
Specifications
| Brand | MK POWERED |
|---|---|
| Part number | ES20-12C |
| Voltage (V) | 12 |
| Capacity (C20) | 20Ah (c20) |
| Capacity (C5) | 17Ah (c5) |
| Technology | AGM |
| Length | 181.10 mm |
| Width | 75.90 mm |
| Height | 166.90 mm |
MK Powered ES20-12C 12V 20Ah 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
Mobility battery MK Powered ES20-12C Mk AGM 20Ah 12V
Designed for power wheelchairs, mobility scooters and light electric vehicles, the MK Powered ES20-12C from the Mk AGM range offers 20 Ah of deep-cycle capacity with AGM technology. Its 181 × 75 × 166 mm make it the exact replacement for the 20 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.
Will it fit your current battery tray?
In terms of format, the MK Powered ES20-12C measures 181 × 75 × 166 mm (length × width × height) and weighs 5.94 kg. 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.
What the MK Powered ES20-12C is for
The MK Powered ES20-12C 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 5.94 kg.
The MK Powered ES20-12C: Mk AGM range and AGM technology
The Mk AGM is the MK Powered range the ES20-12C belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
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.
MK Powered: the maker behind the ES20-12C
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. All the MK Powered batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Warranty and coverage
The MK Powered ES20-12C 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.
Care and maintenance
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.
When you get it and how to return it
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
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ReferenceBCOM-MK-ES20-12C
Data sheet
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BrandMK
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ReferenceES20-12C
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ModelMK AGM
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Voltage (V)12
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Length181.10 mm
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Width75.90 mm
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Height166.90 mm
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Weight5.94 Kgs
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TechnologyAGM
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Capacity (C20)20Ah (c20)
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Capacity (C5)17Ah (c5)
Specific References
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MPNES20-12C
Recommended accessories
Frequently asked questions
Is the ES20-12C model AGM? What does this technology offer?
Yes. The ES20-12C 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 do I fit the ES20-12C model in my device?
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 MK Powered ES20-12C battery last?
Expected lifespan of the MK Powered ES20-12C 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 size is this battery?
Dimensions (length × width × height) are 181×76×167 mm — also written as 181x76x167 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 batteries are equivalent to the MK Powered ES20-12C?
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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