MK Battery

MK Battery 8GU1 · Electric wheelchair battery 12V 31.6Ah

Reference: BOL-MK-8GU1

MK Battery 8GU1: electric wheelchair battery with 12 V and 31.6 Ah, measuring 195.8 × 131.6 × 183.4 mm.

Where the MK Battery 8GU1 fits

The MK Battery 8GU1 is made for powered wheelchairs. It is fitted as a 12 V pair and takes hundreds of daily cycles, something a starter battery could not handle.

The 8GU1 belongs to the MK Battery MK GEL range. More MK Battery batteries

Inside the 8GU1: GEL technology

Inside, the 8GU1 holds its electrolyte in gel form. To charge the 8GU1, use a charger with a gel profile.

MK Battery 8GU1 vs 8G40 and M40-12 SLD G: which one to choose?

What sets the 8GU1 apart from its neighbours in the MK Battery range:

ModelCapacityDimensions (mm)Weight
MK Battery 8GU1 (this one)31.6 Ah195.8 × 131.6 × 183.410.66 kg
MK Battery 8G4040 Ah197.1 × 168.1 × 174.814.29 kg
MK Battery M40-12 SLD G40 Ah197.1 × 168.1 × 174.814.29 kg
  • MK Battery 8G40: 8.40 Ah more, a different case (197.1 × 168.1 × 174.8 mm).
  • MK Battery M40-12 SLD G: 8.40 Ah more, a different case (197.1 × 168.1 × 174.8 mm).

Equivalents and alternatives to the MK Battery 8GU1

Other gel batteries with the dimensions and polarity of the 8GU1: with gel it is best to stay with gel, because the charging profile is different.

ModelTechnologyCapacityDimensions (mm)
Deka 8GU1GEL31.6 Ah195.8 × 131.6 × 183.4
Long LG32-12GEL32 Ah197 × 131 × 180
MK Battery MU-1 SLD GGEL31.6 Ah195.8 × 131.6 × 183.4

MK Battery 8GU1 codes and part numbers

This is how the MK Battery 8GU1 appears on the label and in parts catalogues:

Commercial reference8GU1
Not to be confused withMK Battery 8G31 (97.6 Ah), MK Battery 8GU1H (31.6 Ah)

Check this before ordering the MK Battery 8GU1

  • Capacity of the 8GU1: 31.6 Ah; the same as your current battery or slightly more is fine.
  • Length, width and height of the 8GU1: 195.8 × 131.6 × 183.4 mm.

Frequently asked questions about the MK Battery 8GU1

MK Battery 8GU1 or 8G40?

Compared with the 8GU1, the MK Battery 8G40 has 8.40 Ah more. With 40 Ah, the 8G40 runs longer between charges than the 8GU1 (31.6 Ah). Mind the space: the 8G40 measures 197.1 × 168.1 × 174.8 mm.

How much does the MK Battery 8GU1 weigh?

The 8GU1 weighs 10.66 kg. For reference, the MK Battery 8G40 (40 Ah) weighs 14.29 kg.

Which battery is equivalent to the MK Battery 8GU1?

For the 8GU1, other gel batteries with its size and polarity: Deka 8GU1, Long LG32-12 and MK Battery MU-1 SLD G.

Do I have to replace both batteries at once?

Yes. Wheelchairs fit two batteries in series, and a new one next to a worn one becomes unbalanced and lasts much less.

More batteries to compare with the 8GU1

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