MK Battery

MK Battery MU-1 SLD M · Electric wheelchair battery 12V 35Ah

Reference: BOL-MK-MU-1 SLD M · EAN 8404653009076

MK Battery MU-1 SLD M: electric wheelchair battery with 12 V and 35 Ah, measuring 196.1 × 130 × 180.1 mm.

The MK Battery MU-1 SLD M at a glance

The MK Battery MU-1 SLD M is a deep-cycle battery for electric wheelchairs: sealed, maintenance-free and built to discharge and recharge every day without losing capacity. The MU-1 SLD M is fitted in pairs: two 12 V batteries in series give the chair's 24 V.

The MU-1 SLD M belongs to the MK Battery MK AGM range. The full range of MK Battery batteries

Equivalents and alternatives to the MK Battery MU-1 SLD M

As the MU-1 SLD M is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

ModelTechnologyCapacityDimensions (mm)
Ritar RA12-33AGM35 Ah195 × 130 × 180
Long U1-34HAGM34 Ah197 × 131 × 180
Long U1-34HEAGM34 Ah197 × 131 × 180
Long U1-36HEAGM36 Ah197 × 131 × 180
Kronobat ES34-12AGM34 Ah197 × 131 × 180
Long U1-33HAGM33 Ah197 × 131 × 180

MK Battery MU-1 SLD M vs MU-1 SLD M-33 and 8AU1H: differences

What sets the MU-1 SLD M apart from its neighbours in the MK Battery range:

ModelCapacityDimensions (mm)Weight
MK Battery MU-1 SLD M (this one)35 Ah196.1 × 130 × 180.110.48 kg
MK Battery MU-1 SLD M-3333 Ah196.1 × 130 × 180.110.48 kg
MK Battery 8AU1H32 Ah213.6 × 131.6 × 183.410.43 kg
  • MK Battery MU-1 SLD M-33: 2 Ah less, the same dimensions.
  • MK Battery 8AU1H: 3 Ah less, a different case (213.6 × 131.6 × 183.4 mm).

What it means that the MU-1 SLD M is AGM

The MU-1 SLD M is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the MU-1 SLD M can be fitted in the boot or under a seat with no risk of spills.

Check this before ordering the MK Battery MU-1 SLD M

  • The MU-1 SLD M needs 196.1 × 130 × 180.1 mm of space: measure it with the hold-down clamp in place.
  • With 35 Ah, the MU-1 SLD M replaces an original battery of that capacity or slightly less.

MK Battery MU-1 SLD M codes and part numbers

Look for any of these MU-1 SLD M codes on your current battery or in the manufacturer's catalogue:

Commercial referenceMU-1 SLD M
EAN8404653009076
Not to be confused withMK Battery MU-1 SLD A (32 Ah), MK Battery MU-1 SLD G (31.6 Ah), MK Battery MU-1 SLD M-2 (35 Ah)

Frequently asked questions about the MK Battery MU-1 SLD M

MK Battery MU-1 SLD M or MU-1 SLD M-33?

Compared with the MU-1 SLD M, the MK Battery MU-1 SLD M-33 has 2 Ah less. With 35 Ah, the MU-1 SLD M runs longer between charges than the MU-1 SLD M-33 (33 Ah). Both measure 196.1 × 130 × 180.1 mm, so they fit the same tray.

How much does the MK Battery MU-1 SLD M weigh?

The MU-1 SLD M weighs 10.48 kg. For reference, the MK Battery MU-1 SLD M-33 (33 Ah) weighs 10.48 kg.

Which battery is equivalent to the MK Battery MU-1 SLD M?

Only other AGM batteries with its dimensions and polarity: Ritar RA12-33, Long U1-34H and Long U1-34HE. Neither an EFB nor a conventional battery replaces the MU-1 SLD M.

Which charger does the MK Battery MU-1 SLD M need?

A charger with an AGM mode that limits voltage to about 14.4-14.7 V. Never an old unregulated charger: overcharging dries out an AGM beyond repair.

Other options if you are unsure about the MU-1 SLD M

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