MK Battery

MK Battery 8G4D · Electric wheelchair battery 12V 183Ah

Reference: BOL-MK-8G4D · EAN 8404653002626

MK Battery 8G4D: electric wheelchair battery with 12 V and 183 Ah, measuring 527.6 × 214.1 × 250.2 mm.

Where the MK Battery 8G4D fits

The MK Battery 8G4D is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. It is fitted as a 12 V pair and takes hundreds of daily cycles, something a starter battery could not handle.

The 8G4D belongs to the MK Battery MK GEL range. More MK Battery batteries

Inside the 8G4D: GEL technology

The 8G4D is a gel battery: the electrolyte is immobilised in silica gel. It requires a charger with a specific gel profile.

MK Battery 8G4D vs 8G8D

The real differences between the 8G4D and the closest MK Battery models:

ModelCapacityDimensions (mm)Weight
MK Battery 8G4D (this one)183 Ah527.6 × 214.1 × 250.257.83 kg
MK Battery 8G8D225 Ah519.2 × 278.6 × 253.571.21 kg
  • MK Battery 8G8D: 42 Ah more, a different case (519.2 × 278.6 × 253.5 mm).

Equivalents and alternatives to the MK Battery 8G4D

We have no other battery with exactly the dimensions and polarity of the 8G4D. Browse the rest of our electric wheelchair batteries to compare close options.

Part numbers and codes for the MK Battery 8G4D

The 8G4D is listed under these codes on labels, in garages and in catalogues:

Commercial reference8G4D
EAN8404653002626
Terminal typeEAPT
Not to be confused withMK Battery 8A4D (198 Ah), MK Battery 8G40 (40 Ah), MK Battery 8G8D (225 Ah)

What to look at before buying the 8G4D

  • With 183 Ah, the 8G4D replaces an original battery of that capacity or slightly less.
  • Measure the space: the 8G4D takes up 527.6 × 214.1 × 250.2 mm.

Frequently asked questions about the MK Battery 8G4D

8G4D or 8G8D: which one suits me?

Compared with the 8G4D, the MK Battery 8G8D has 42 Ah more. With 225 Ah, the 8G8D runs longer between charges than the 8G4D (183 Ah). Mind the space: the 8G8D measures 519.2 × 278.6 × 253.5 mm.

How much does the MK Battery 8G4D weigh?

57.83 kg, with 183 Ah of capacity. For reference, the MK Battery 8G8D (225 Ah) weighs 71.21 kg.

Which charger does the MK Battery 8G4D need?

A charger with a GEL mode not exceeding 14.1-14.4 V. Charging it with a conventional lead-acid profile damages it through overcharging.

More batteries to compare with the 8G4D

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