MK Battery

MK Battery M40-12 SLD G · Electric wheelchair battery 12V 40Ah

Reference: BOL-MK-M40-12 SLD G · EAN 3660766462596

The MK Battery M40-12 SLD G is an electric wheelchair battery with 12 V and 40 Ah, measuring 197.1 × 168.1 × 174.8 mm.

MK Battery M40-12 SLD G · Electric wheelchair battery 12V 40Ah – main view
Voltage
12V
Capacity
40Ah
Technology
GEL
Dimensions (L × W × H)
197.1 × 168.1 × 174.8 mm
€176.91
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For Spain, Portugal, France, Germany, Italy, Belgium and the Netherlands you see the exact cost before paying. For the rest of Europe we send you a shipping quote, with no obligation. 14 days to return your order
If it does not fit, you have 14 days from delivery to return it unused.

Who the MK Battery M40-12 SLD G is for

The MK Battery M40-12 SLD G is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. With 40 Ah per battery, the M40-12 SLD G is designed for a full charge every night.

The M40-12 SLD G belongs to the MK Battery MK GEL range. See all MK Battery batteries

Inside the M40-12 SLD G: GEL technology

The M40-12 SLD G is a gel battery: the electrolyte is immobilised in silica gel. It requires a charger with a specific gel profile.

MK Battery M40-12 SLD G vs 8GU1 and MU-1 SLD G

How the M40-12 SLD G compares with MK Battery batteries of similar size and capacity:

ModelCapacityDimensions (mm)Weight
MK Battery M40-12 SLD G (this one)40 Ah197.1 × 168.1 × 174.814.29 kg
MK Battery 8GU131.6 Ah195.8 × 131.6 × 183.410.66 kg
MK Battery MU-1 SLD G31.6 Ah195.8 × 131.6 × 183.410.66 kg
  • MK Battery 8GU1: 8.40 Ah less, a different case (195.8 × 131.6 × 183.4 mm).
  • MK Battery MU-1 SLD G: 8.40 Ah less, a different case (195.8 × 131.6 × 183.4 mm).

Equivalents and alternatives to the MK Battery M40-12 SLD G

Other gel batteries with the dimensions and polarity of the M40-12 SLD G: with gel it is best to stay with gel, because the charging profile is different.

ModelTechnologyCapacityDimensions (mm)
Deka 8G40GEL40 Ah197.1 × 168.1 × 174.8
Long LG40-12GEL40 Ah199 × 166 × 171
Long LG40-12NGEL40 Ah199 × 166 × 171
MK Battery 8G40GEL40 Ah197.1 × 168.1 × 174.8

MK Battery M40-12 SLD G codes and part numbers

The M40-12 SLD G is listed under these codes on labels, in garages and in catalogues:

Commercial referenceM40-12 SLD G
EAN3660766462596
Terminal typeC (INSERT)
Not to be confused withMK Battery M40-12 SLD M (45 Ah)

Before ordering the M40-12 SLD G, check this

  • Capacity of the M40-12 SLD G: 40 Ah; the same as your current battery or slightly more is fine.
  • The M40-12 SLD G needs 197.1 × 168.1 × 174.8 mm of space: measure it with the hold-down clamp in place.

Frequently asked questions about the MK Battery M40-12 SLD G

MK Battery M40-12 SLD G or 8GU1?

Compared with the M40-12 SLD G, the MK Battery 8GU1 has 8.40 Ah less. With 40 Ah, the M40-12 SLD G runs longer between charges than the 8GU1 (31.6 Ah). Mind the space: the 8GU1 measures 195.8 × 131.6 × 183.4 mm.

How much does the MK Battery M40-12 SLD G weigh?

The M40-12 SLD G weighs 14.29 kg. For reference, the MK Battery 8GU1 (31.6 Ah) weighs 10.66 kg.

Which battery is equivalent to the MK Battery M40-12 SLD G?

For the M40-12 SLD G, other gel batteries with its size and polarity: Deka 8G40, Long LG40-12 and Long LG40-12N.

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 M40-12 SLD G

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