MK Battery E27 SLD G — 12V 88Ah Group 27 Deep Cycle Sealed Gel Battery, Set of 2 (Blade B Terminal)
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MK Battery E27 SLD G — 12V 88Ah Group 27 Deep Cycle Sealed Gel Battery, Set of 2 (Blade B Terminal)
The highest capacity. The longest range. The MK standard. The MK Battery E27 SLD G is a Group 27 deep cycle sealed gel battery delivering an exceptional 88Ah per battery — engineered for heavy-duty power wheelchairs and mobility scooters where maximum range and all-day reliability are non-negotiable. This set of two with blade style B terminals delivers a complete 24-volt system and is compatible with most standard charging systems, backed by the most trusted name in mobility battery technology.
✔ Set of 2 — 24V System Total ✔ 88Ah Per Battery ✔ Blade Style B Terminal ✔ Compatible With Most Chargers ✔ FAA & IATA Approved ✔ Zero Maintenance
Specifications — Each Battery
| Model | MK Battery E27 SLD G (also M27 SLD G) |
|---|---|
| Battery Group | Group 27 |
| Voltage | 12 Volts |
| Capacity | 88 Amp Hours (Ah) at 20-Hour Rate |
| System Voltage (Set of 2) | 24 Volts Total |
| Battery Type | Deep Cycle Sealed Gel (VRLA) — Thixotropic Gel Electrolyte |
| Terminal Type | Blade Style B Terminal (T876) |
| Dimensions (Each) | 12.83" × 6.56" × 9.30" |
| Weight (Each) | 63 lbs |
| Charger Compatibility | Compatible with most standard charging systems |
| Travel Approved | FAA, DOT, ICAO & IATA Approved — Non-Spillable |
| Quantity | Set of 2 |
| Warranty | 1-Year Full Replacement Warranty |
Why the E27 SLD G Is in a Class of Its Own
At 88Ah per battery, the MK E27 SLD G is one of the largest and most capable deep cycle gel batteries available for mobility equipment. The Group 27 footprint combined with thixotropic gel technology delivers exceptional deep cycle recovery — meaning this battery handles daily full discharges without the performance degradation that standard SLA or lesser gel batteries suffer over time.
- 88Ah per battery — one of the highest capacities in mobility battery technology
- Thixotropic gel electrolyte — completely immobilized, zero spill risk in any position
- Higher charging range — compatible with most standard mobility charging systems
- No memory effect — recharge any time without reducing capacity
- Lead calcium plate alloy — longer service life and lower self-discharge
- Will not discharge sitting on concrete
- FAA, DOT, ICAO and IATA approved — safe for all transport
Note on charger compatibility: Unlike most gel batteries, the E27 SLD G has a higher charging range that makes it compatible with most standard charging systems. If you are uncertain about your charger, call us and we will confirm compatibility before you order.
Traveling With Your Power Chair or Scooter?
The MK E27 SLD G is FAA and IATA approved for travel — but at 63 lbs each, these are serious batteries that need serious transport solutions. Loading and unloading a heavy-duty power chair or scooter equipped with Group 27 batteries is a two-person job without the right equipment. A quality vehicle lift removes all of that effort and risk. See our Harmar Vehicle Lift Guide 2026 to find the right lift for your vehicle and equipment — and make every trip easier from the start.
Compatibility
The MK E27 SLD G fits heavy-duty power wheelchairs and mobility scooters requiring a 24-volt Group 27 deep cycle gel battery system with blade B terminals. Physical dimensions and terminal type must be confirmed before ordering. Call us with your equipment model and we will confirm the correct fit before you buy.
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
Ready to order or need terminal and charger compatibility confirmed first? Call 1-866-218-0902 — our team will make sure you get exactly the right batteries for your equipment.
