MK Battery M50-12 SLD M — 12V 50Ah Deep Cycle Sealed AGM Mobility Battery, Set of 2 (Recessed Screw Terminal)
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MK Battery M50-12 SLD M — 12V 50Ah Deep Cycle Sealed AGM Mobility Battery, Set of 2 (Recessed Screw Terminal)
Big scooters need big batteries — and the right terminal. The MK Battery M50-12 SLD M is a 12V 50Ah sealed AGM battery engineered for large-frame mobility scooters and heavy-duty power wheelchairs. The recessed internal screw terminals allow this battery to fit in equipment where overhead space is at a premium and standard post terminals simply will not work. This set of two delivers a complete 24-volt system with MK quality, maintenance-free performance, and full airline approval.
✔ Set of 2 — 24V System Total ✔ 50Ah Per Battery ✔ Recessed Screw / Internal Thread Terminal ✔ Includes Handle for Easy Carry ✔ FAA & IATA Approved
Specifications — Each Battery
| Model | MK Battery M50-12 SLD M |
|---|---|
| Voltage | 12 Volts |
| Capacity | 50 Amp Hours (Ah) |
| System Voltage (Set of 2) | 24 Volts Total |
| Battery Type | Sealed AGM (Absorbed Glass Mat) — VRLA |
| Terminal Type | Recessed Internal Screw / Threaded Insert (F8 / F11 / M6) |
| Dimensions (Each) | 7.76" × 6.50" × 6.69" |
| Weight (Each) | ~31.3 lbs |
| Handle | Yes — built-in carry handle |
| Self-Discharge | 98% retained after 1 month at 20°C |
| Travel Approved | FAA, IATA, DOT & UPS Approved |
| Quantity | Set of 2 |
| Warranty | 1-Year Warranty |
Why the Screw Terminal Matters
Most mobility batteries use standard post or flag terminals that require clearance above the battery for cable connections. The M50-12 SLD M uses recessed internal screw terminals — meaning connections are made from the top surface down into the battery, requiring significantly less overhead clearance. This makes it the correct battery for specific large-frame scooter models where the battery compartment lid sits close to the top of the battery.
- Recessed screw terminals — ideal for tight battery compartments
- Replaces any standard 12V 40–50Ah battery with compatible terminal type
- Built-in carry handle for easier installation and removal
- Heavy-duty sealed no-leak design — no corrosion, no spills
- Fortified posts, straps and welds resist vibration damage
- Ultra-premium sealing valve prevents capacity loss
- High-density oxide construction for maximum power per charge
Known compatible models include: Activecare Prowler 3310, Activecare Prowler 3410, Pride Victory LX Sport 4-Wheel (S710LXW). Always verify terminal type and dimensions against your specific model before ordering.
Is Your Scooter Having More Than a Battery Issue?
A fresh set of 50Ah batteries will restore range and performance on most large-frame scooters — but if your equipment continues to underperform after a battery swap, the issue may run deeper. Our Southwest Florida repair team services all major mobility brands and specializes in diagnosing power, motor, and controller issues that batteries alone cannot fix. Read our Mobility Scooter Repair Guide to know when to replace, when to repair, and when to call us.
Compatibility
The MK M50-12 SLD M fits large-frame mobility scooters and power wheelchairs requiring a 24-volt 50Ah AGM battery with internal recessed screw terminals. Terminal type, physical dimensions, and compartment clearance must all be verified before ordering. Call us with your model number and we will confirm the correct fit.
Call 1-866-218-0902 — Mon–Fri, 9am–5pm EST
Why Buy From Medical Department Store?
- 30+ years serving mobility customers — A+ BBB Rated
- 110% Low Price Guarantee — we beat any competitor
- Mobility specialists on the phone, not a call center
- Ships to all 50 states — 5 Southwest Florida locations for local pickup
Not sure if the terminal type is correct for your scooter? Call 1-866-218-0902 — our team will confirm fitment before you order.
