MK Battery

MK Battery ES12-12SA · Electric wheelchair battery 12V 12Ah

Reference: BOL-MK-ES12-12SA

MK Battery ES12-12SA: electric wheelchair battery with 12 V and 12 Ah, measuring 150.9 × 98 × 98 mm.

The MK Battery ES12-12SA at a glance

The MK Battery ES12-12SA 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 ES12-12SA belongs to the MK Battery MK AGM range. See all MK Battery batteries

AGM technology in the ES12-12SA

Inside, the ES12-12SA has glass fibre separators (AGM) that hold the electrolyte. The ES12-12SA needs a charger with an AGM mode that does not exceed 14.7 V.

MK Battery ES12-12SA vs ES14-12 and ES14-12TE: differences

What sets the ES12-12SA apart from its neighbours in the MK Battery range:

ModelCapacityDimensions (mm)Weight
MK Battery ES12-12SA (this one)12 Ah150.9 × 98 × 983.74 kg
MK Battery ES14-1214 Ah150.9 × 98 × 100.14.39 kg
MK Battery ES14-12TE14 Ah150.9 × 99.1 × 964.39 kg
  • MK Battery ES14-12: 2 Ah more, a different case (150.9 × 98 × 100.1 mm).
  • MK Battery ES14-12TE: 2 Ah more, the same dimensions.

Equivalents and alternatives to the MK Battery ES12-12SA

As the ES12-12SA 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)
Long WP12-12AGM12 Ah151 × 98 × 98
Long WP12-12AAGM12 Ah151 × 98 × 98
Long WP12-12EAGM12 Ah151 × 98 × 98
Kronobat ES12-12AGM12 Ah151 × 99 × 100
Q-Battery 12LCP-12AGM13 Ah151 × 98 × 95
Long WP14-12SEAGM14 Ah151 × 98 × 100

What to look at before buying the ES12-12SA

  • With 12 Ah, the ES12-12SA replaces an original battery of that capacity or slightly less.
  • The ES12-12SA needs 150.9 × 98 × 98 mm of space: measure it with the hold-down clamp in place.

Frequently asked questions about the MK Battery ES12-12SA

MK Battery ES12-12SA or ES14-12?

Compared with the ES12-12SA, the MK Battery ES14-12 has 2 Ah more. With 14 Ah, the ES14-12 runs longer between charges than the ES12-12SA (12 Ah). Mind the space: the ES14-12 measures 150.9 × 98 × 100.1 mm.

How much does the MK Battery ES12-12SA weigh?

The ES12-12SA weighs 3.74 kg. For reference, the MK Battery ES14-12 (14 Ah) weighs 4.39 kg.

Which battery is equivalent to the MK Battery ES12-12SA?

Only other AGM batteries with its dimensions and polarity: Long WP12-12, Long WP12-12A and Long WP12-12E. Neither an EFB nor a conventional battery replaces the ES12-12SA.

Which charger does the MK Battery ES12-12SA 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.

Keep comparing: alternatives to the ES12-12SA

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