Bring push-button lifting power to your home garage. The GarageMax GM-EJ300S combines a 3-ton rated lifting capacity with a durable steel design built for routine maintenance, tire rotations, and other garage projects. Its battery-powered hydraulic system replaces repeated manual pumping with convenient lifting and lowering controls built into the ergonomic handle, making vehicle maintenance easier to tackle.
With a 5-inch (125 mm) minimum saddle height and an 18-1/4-inch (463 mm) maximum lift height, the GM-EJ300S is designed for many factory-height passenger cars, crossovers, and light-duty SUVs. A durable steel trolley frame and smooth-rolling wheels make the 70.4 lb (32 kg) jack easy to position at the vehicle manufacturer’s specified lifting points.
Built-in motor protection helps guard against overheating during repeated use. If battery power is depleted, the manual-release cable allows the jack to be lowered safely. LED indicators on the handle keep battery charge and system status easy to see.
What’s included: One GM-EJ300S EJack, steel handle assembly, GM-B104 4Ah lithium-ion battery, and GM-BC100 battery charger. It is backed by a 2-year limited manufacturer warranty covering defects in materials and workmanship. Replacement service parts are available through the official GarageMax store.






| Item | GM-EJ300S 3 Ton Heavy-Duty EJack |
|---|---|
| Model | GM-EJ300S |
| Rated Capacity | 3 Ton |
| Minimum Saddle Height | 5" (125 mm) |
| Maximum Saddle Height | 18-1/4" (463 mm) |
| Net Weight | 70.4 lbs (32 kg) |
| Gross Weight | 78.1 lbs (35.5 kg) |
| Product Dimensions (Without Handle) | 30.2" (767 mm) × 13.7" (348 mm) × 5.9" (151 mm) |
| Battery Model | GM-B104 |
| Battery Type | Lithium-ion |
| Battery Rating | 18V (20V Max), 4.0 Ah, 80Wh |
| Charger Model | GM-BC100 (RT-105) |
| Charger Input | 100-240V AC 50-60 Hz, 45W |
| Charger Output | 14.4-20V DC, 2A |
| Included Accessories | EJack, Steel Handle Assembly, GM-B104 4Ah Battery, GM-BC100 Battery Charger |
| Warranty | 2-Year Limited Manufacturer Warranty |


Floor jacks, lifts and stands — everything for your garage upgrade is built for reliable performance.