MK Battery

MK Battery MU-1 SLD M-33 · Electric wheelchair battery 12V 33Ah

Reference: BOL-MK-MU-1 SLD M-33

MK Battery MU-1 SLD M-33: electric wheelchair battery with 12 V and 33 Ah, measuring 196.1 × 130 × 180.1 mm.

MK Battery MU-1 SLD M-33 · Electric wheelchair battery 12V 33Ah – main view
Voltage
12V
Capacity
33Ah
Technology
AGM
Dimensions (L × W × H)
196.1 × 130 × 180.1 mm
€139.08
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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 MU-1 SLD M-33 is for

The MK Battery MU-1 SLD M-33 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 MU-1 SLD M-33 belongs to the MK Battery MK AGM range. See all MK Battery batteries

Equivalents and alternatives to the MK Battery MU-1 SLD M-33

Other AGM batteries that fit the MU-1 SLD M-33's tray with the same polarity: an AGM can only be replaced by another AGM.

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

MK Battery MU-1 SLD M-33 vs ES33-12 and MU-1 SLD M: differences

The real differences between the MU-1 SLD M-33 and the closest MK Battery models:

ModelCapacityDimensions (mm)Weight
MK Battery MU-1 SLD M-33 (this one)33 Ah196.1 × 130 × 180.110.48 kg
MK Battery ES33-1235 Ah196.1 × 130 × 180.110.48 kg
MK Battery MU-1 SLD M35 Ah196.1 × 130 × 180.110.48 kg
  • MK Battery ES33-12: 2 Ah more, the same dimensions.
  • MK Battery MU-1 SLD M: 2 Ah more, the same dimensions.

What it means that the MU-1 SLD M-33 is AGM

The MU-1 SLD M-33 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the MU-1 SLD M-33 can be fitted in the boot or under a seat with no risk of spills.

Before ordering the MU-1 SLD M-33, check this

  • Measure the space: the MU-1 SLD M-33 takes up 196.1 × 130 × 180.1 mm.
  • Capacity of the MU-1 SLD M-33: 33 Ah; the same as your current battery or slightly more is fine.

Frequently asked questions about the MK Battery MU-1 SLD M-33

MU-1 SLD M-33 or ES33-12: which one suits me?

Compared with the MU-1 SLD M-33, the MK Battery ES33-12 has 2 Ah more. With 35 Ah, the ES33-12 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-33 weigh?

10.48 kg, with 33 Ah of capacity. For reference, the MK Battery ES33-12 (35 Ah) weighs 10.48 kg.

Which battery is equivalent to the MK Battery MU-1 SLD M-33?

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

Which charger does the MK Battery MU-1 SLD M-33 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-33

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