Summary: One code, one battery: MK Battery ES17-12S, 18Ah 12V, for mobility scooters and wheelchairs. The code ES17-12S on your old label is the quickest confirmation.
12VVoltage
18AhAmp-hours at C20
5.85 kgWeighs
MK Battery ES17-12S: what it is and who it suits
Daily trips to the shops or the park often depend on the MK Battery ES17-12S. Voltage, capacity and terminal style decide whether a mobility battery fits, and all three are below. Search MK Battery ES17-12S and the right page comes up straight away.
18Ah makes it a smaller battery, good for light electrical loads.
MK Battery ES17-12S: dimensions and ratings
ManufacturerMK Battery
ReferenceES17-12S
Product lineMK AGM
Applicationmobility scooters and wheelchairs
Voltage12V
Amp-hours at C2018Ah
Battery technologyAGM
Size L × W × H181.1 × 75.9 × 166.9 mm
Weighs5.85 kg
Fitting and everyday care
A scooter that used to manage a full day at the shops now struggles to get home by teatime. Plug in at the end of each day out, whatever the gauge says. Leaving batteries partly charged for days harms deep-cycle batteries.
About the technology: AGM
Compression inside the case is part of what makes glass-mat batteries so sturdy. Because nothing can spill, AGM batteries can live inside a cabin, a boot or under a seat. Do not mix AGM and flooded batteries in one bank.
Quick compatibility checklist
- ✓ Sticking with AGM avoids surprises, unless your vehicle maker approves a change.
- ✓ Check 181.1 × 75.9 × 166.9 mm against the tray, not just the old battery.
- ✓ Capacity 18Ah: equal to or a little above your old label is ideal.
Questions and answers
What family does this battery come from?
It belongs to the MK AGM line from MK Battery. Other models in the same line share the construction and differ mainly in size and capacity.
How do I check compatibility quickly?
The safest test is a direct comparison: same voltage, same or slightly higher capacity, same case size and the same terminal orientation. Your owner's manual usually lists the original values.
Same size and layout
Other references from our catalogue with the same measurements and terminal position.
Kronobat ES17-12Long WP18-12Long WP18-12ILong WP18-12NLong WP18-12U
Explore more
Everything on baterias.online is filed by brand and reference, so ordering the MK Battery ES17-12S is straightforward. If the terminal side or size differ, browse the alternatives before ordering.
