MK Battery MU-1 SLD M-33 — 12V 33Ah Sealed AGM Mobility Battery, Set of 2
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MK Battery MU-1 SLD M-33 — 12V 33Ah Sealed AGM Mobility Battery, Set of 2
Trusted MK quality at a more accessible price point. The MK MU-1 SLD M-33 is a U1-size sealed AGM battery designed as a cost-effective alternative to standard U1 mobility batteries — delivering dependable 24-volt power for scooters and power wheelchairs used for occasional trips, shorter distances, or periodic mobility needs. This set of two gives you everything you need in a complete system, maintenance free and ready to install.
✔ Set of 2 — 24V System Total ✔ More Affordable Than Standard U1 ✔ Sealed AGM — Spill Proof ✔ Deep Cycle Design ✔ Zero Maintenance
Specifications — Each Battery
| Model | MK Battery MU-1 SLD M-33 |
|---|---|
| Voltage | 12 Volts |
| Capacity | 33 Amp Hours (Ah) |
| System Voltage (Set of 2) | 24 Volts Total |
| Battery Type | Sealed AGM (Absorbed Glass Mat) — VRLA |
| Dimensions (Each) | 7.68" × 5.16" × 6.14" |
| Weight (Each) | 23 lbs |
| Best For | Occasional use, shorter distances, periodic mobility needs |
| Quantity | Set of 2 |
| Warranty | 1-Year Warranty |
Is This the Right Battery for Your Usage?
The MU-1 SLD M-33 is specifically recommended for mobility devices used occasionally or for shorter distances. It replaces scooters or power chairs requiring a 31, 32, or 33Ah U1-size battery and offers a shorter charging range than standard 31–33Ah batteries — making it ideal for the user who does not depend on their scooter for all-day, every-day heavy use.
- Best for occasional use — trips to appointments, shopping, outings
- Suitable for shorter daily distances where maximum range is not critical
- Sealed AGM technology — electrolyte fully absorbed, zero spill risk
- Fortified posts and welds resist vibration on uneven terrain
- Premium sealing valve prevents capacity loss and controls pressure
- Deep cycle design — rechargeable multiple times without memory effect
Need a battery for heavy daily use? If your scooter or power chair is your primary means of getting around every day, we recommend stepping up to the MK MU-1 SLD A (32Ah) or MK MU-1 SLD G gel (31.6Ah) for better cycle life and longer-term performance. Call us and we will help you choose the right battery for your actual usage pattern.
Is Your Scooter Having Other Issues?
Sometimes reduced performance goes beyond worn batteries. If your scooter continues to underperform after a battery replacement — losing power unexpectedly, showing error codes, or cutting out mid-ride — it may need a professional inspection. Our Southwest Florida repair team services all major mobility brands and can diagnose and fix most issues fast. Read our Mobility Scooter Repair Guide to know when to replace, when to repair, and when to call us.
Compatibility
The MK MU-1 SLD M-33 fits mobility scooters and power wheelchairs requiring a 31, 32, or 33Ah U1-size battery in a 24-volt (2-battery) system. Recommended for occasional or shorter-distance use only. Call us to confirm the correct fit for your equipment before ordering.
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 this is the right battery for your usage? Call 1-866-218-0902 — our team will match you to the right battery for how you actually use your scooter.
