Mk powered ES3.8-6 · Wheelchair battery 6V 3.8Ah AGM
Wheelchair battery MK Powered ES3.8-6 6V 3.8Ah AGM images
Specifications
| Brand | MK POWERED |
|---|---|
| Part number | ES3.8-6 |
| Voltage (V) | 6 |
| Capacity (C20) | 3.8Ah (c20) |
| Capacity (C5) | 3.23Ah (c5) |
| Technology | AGM |
| Length | 66.00 mm |
| Width | 33.00 mm |
| Height | 126.00 mm |
MK Powered ES3.8-6 6V 3Ah 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 ES3.8-6 Mk AGM 3.8Ah 6V
The 6 V, 3.8 Ah MK Powered ES3.8-6 from the Mk AGM range with AGM technology is the standard replacement for power wheelchairs, mobility scooters and light electric vehicles. Its 66 × 33 × 126 mm make it the exact replacement for the 3.8 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 MK Powered ES3.8-6 is for
With 3.8 Ah, the MK Powered ES3.8-6 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 0.73 kg and F1 terminals.
Size, terminals and hold-down of the MK Powered ES3.8-6
It has external dimensions of 66 × 33 × 126 mm and weighs 0.73 kg. It uses F1 terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.
The MK Powered ES3.8-6: Mk AGM range and AGM technology
The Mk AGM is the MK Powered range the ES3.8-6 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.
Why choose MK Powered batteries
MK batteries are the standard in the electric mobility sector: sealed, approved for air transport and with the consistency that wheelchair manufacturers demand as original equipment. 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 MK Powered ES3.8-6 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
Use the original charger or one compatible with the battery technology (AGM/GEL) and always replace both batteries in the set together. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.
Delivery times 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 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.
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ReferenceBCOM-MK-ES3.8-6
Data sheet
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BrandMK
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ReferenceES3.8-6
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ModelMK AGM
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Voltage (V)6
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Length66.00 mm
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Width33.00 mm
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Height126.00 mm
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Weight0.73 Kgs
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TechnologyAGM
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Terminal typeF1
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Capacity (C20)3.8Ah (c20)
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Capacity (C5)3.23Ah (c5)
Specific References
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UPC083996058781
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MPNES3.8-6
Recommended accessories
Frequently asked questions
Is the MK Powered ES3.8-6 an AGM battery and what are the benefits of AGM?
Yes. The ES3.8-6 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 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.
What is the service life of the ES3.8-6 model?
Expected lifespan of the MK Powered ES3.8-6 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 ES3.8-6 model?
Dimensions (length × width × height) are 66×33×126 mm — also written as 66x33x126 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 ES3.8-6?
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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