MK Battery

MK Battery 8G31DT · Electric wheelchair battery 12V 97.6Ah

Reference: BOL-MK-8G31DT

The MK Battery 8G31DT is an electric wheelchair battery with 12 V and 97.6 Ah, measuring 328.4 × 171.2 × 238.8 mm.

The MK Battery 8G31DT at a glance

The MK Battery 8G31DT is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. The 8G31DT is fitted in pairs: two 12 V batteries in series give the chair's 24 V.

The 8G31DT belongs to the MK Battery MK GEL range. See all MK Battery batteries

Equivalents and alternatives to the MK Battery 8G31DT

Gel alternatives to the 8G31DT, with the same size and polarity: a gel charger does not treat an AGM or a flooded battery the same way.

ModelTechnologyCapacityDimensions (mm)
Deka 8G31GEL97.6 Ah328.4 × 171.5 × 237.2
MK Battery 8G31GEL97.6 Ah328.4 × 171.2 × 237
MK Battery E31 SLD G STGEL97.6 Ah328.4 × 171.2 × 237

MK Battery 8G31DT vs E27 SLD G, 8G30H and E31 SLD G: differences

How the 8G31DT compares with MK Battery batteries of similar size and capacity:

ModelCapacityDimensions (mm)Weight
MK Battery 8G31DT (this one)97.6 Ah328.4 × 171.2 × 238.831.07 kg
MK Battery E27 SLD G88 Ah325.9 × 166.6 × 23728.12 kg
MK Battery 8G30H97.6 Ah328.4 × 171.2 × 247.731.07 kg
MK Battery E31 SLD G97.6 Ah328.4 × 171.2 × 247.731.07 kg
MK Battery M27 SLD G88 Ah325.9 × 166.6 × 23728.12 kg
  • MK Battery E27 SLD G: 9.60 Ah less, a different case (325.9 × 166.6 × 237 mm).
  • MK Battery 8G30H: the same capacity, a different height (247.7 mm instead of 238.8 mm). It only fits if there is room for 247.7 mm of height.
  • MK Battery E31 SLD G: the same capacity, a different height (247.7 mm instead of 238.8 mm). It only fits if there is room for 247.7 mm of height.
  • MK Battery M27 SLD G: 9.60 Ah less, a different case (325.9 × 166.6 × 237 mm).

Inside the 8G31DT: GEL technology

The 8G31DT is a gel battery: the electrolyte is immobilised in silica gel. The 8G31DT handles repeated deep discharges well, its strong point compared with an AGM.

Before ordering the 8G31DT, check this

  • Length, width and height of the 8G31DT: 328.4 × 171.2 × 238.8 mm.
  • With 97.6 Ah, the 8G31DT replaces an original battery of that capacity or slightly less.

Part numbers and codes for the MK Battery 8G31DT

Look for any of these 8G31DT codes on your current battery or in the manufacturer's catalogue:

Commercial reference8G31DT
Terminal typeEAPT / ST
Not to be confused withMK Battery 8A31DT (105 Ah)

Frequently asked questions about the MK Battery 8G31DT

8G31DT or E27 SLD G: which one suits me?

Compared with the 8G31DT, the MK Battery E27 SLD G has 9.60 Ah less. With 97.6 Ah, the 8G31DT runs longer between charges than the E27 SLD G (88 Ah). Mind the space: the E27 SLD G measures 325.9 × 166.6 × 237 mm.

MK Battery 8G31DT or 8G30H/E31 SLD G: what changes?

Mainly the height: the 8G31DT is 238.8 mm tall and the MK Battery 8G30H 247.7 mm, with the same length and width and 97.6 Ah against 97.6 Ah. The MK Battery E31 SLD G is 247.7 mm tall, with 97.6 Ah and A. Before choosing between the 8G31DT and the 8G30H, measure the free height of the battery compartment with the cover or bonnet closed.

How much does the MK Battery 8G31DT weigh?

31.07 kg, with 97.6 Ah of capacity. For reference, the MK Battery E27 SLD G (88 Ah) weighs 28.12 kg.

Which battery is equivalent to the MK Battery 8G31DT?

For the 8G31DT, other gel batteries with its size and polarity: Deka 8G31, MK Battery 8G31 and MK Battery E31 SLD G ST.

Which charger does the MK Battery 8G31DT 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.

Keep comparing: alternatives to the 8G31DT

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