MK Battery 8G40: cyclic battery for electric wheelchairs 40Ah 12V

At a glance: The battery on this page is the MK Battery 8G40, aimed at mobility scooters and wheelchairs. Get the size and terminal side right and you are most of the way there.

Why choose the MK Battery 8G40

Carers often look up the MK Battery 8G40 after noticing the chair runs out of charge earlier than before. Built for deep cycles, it copes with being run low and refilled every evening. Carers buy batteries online to avoid waiting for a dealer.

A capacity of 40Ah matches what many vehicles and machines in this group expect.

Before you order: a quick checklist

• ✓ Tape measure time: 197.1 × 168.1 × 174.8 mm is the footprint and height of this case. Leave a little clearance for the clamp and the cable lugs.
• ✓ Capacity 40Ah: equal to or a little above your old label is ideal.
• ✓ This reference uses gel. If your current battery has a different technology printed on it, find out why before switching.

MK Battery 8G40 data sheet

Questions buyers ask about the MK Battery 8G40

What gel means for you

Gel batteries are sealed and valve-regulated, much like AGM. Powerchairs and mobility scooters often use gel because it takes daily deep discharges well. Never open a gel battery to add water.

Batteries with the same format

Other references from our catalogue with the same measurements and terminal position.

Deka 8G40MK Battery M40-12 SLD G

More options

Ordering online at baterias.online is the quick part once the checks are done. A minute spent comparing the label of your old battery avoids most mistakes.

• Other batteries for mobility scooters and wheelchairs
• More from MK Battery

Fitting and everyday care

Hilly routes and soft tyres drain mobility batteries faster than flat pavements. Use the charger supplied with the chair or one set for the gel chemistry. Corroded connectors can cut power on bumps.