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.
12VNominal voltage
40AhCapacity, 20-hour rate (C20)
14.29 kgWeighs
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
Can I use the MK Battery 8G40 instead of my old battery?
Read the code on your old unit and set it beside 8G40, then check dimensions, terminal layout and electrical ratings on this page. If all of them match, the replacement is equivalent.
Can I buy the MK Battery 8G40 online?
Only a few minutes once you have checked the figures and the code.
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.
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.
