40 V lithium-ion technology - High capacity cells with no-fade power for maximum job performance. No memory effect - Charge whenever you want without having to drain the battery or wait for full charge before use. Cord-free operation - No gas, oil, tune-ups, pull-cords, or tangled extension cords. Eco-friendly - Zero emissions for cleaner air. Reliable performance - 4.0 Ah (160 Wh) capacity provides 25-40 minutes of whisper-quiet run-time. For use with all Snow Joe and Sun Joe cordless iON models. ETL approved. Energy Star certified. Battery only. 90 days warranty. 6.5 in. L x 3.5 in. W x 2.5 in. H (2.9 lbs). Power up. Power your cordless iON tools the eco-friendly way with the 40-volt EcoSharp iBAT40 lithium-ion battery. Compatible with all Snow Joe and Sun Joe iON models, the iBAT40 features high capacity 4.0 Ah lithium-ion cells that deliver no-fade power for maximum job performance. Simply insert the EcoSharp battery pack into your iON tool of choice and power up instantly without having to mess with gas, oil, pull-cords, or tangled extension cords! Breathe easily and confidently while working with your iBAT40 since this Energy Star-rated battery pack provides for cleaner, emission-free air during operation. Although run-times will vary depending on the tool used and the job performed, 25-40 minutes of whisper-quiet operation is a good approximation of what to expect from your iBAT40-powered tool. The fuel gauge indicator lights on the EcoSharp will also let you easily monitor your battery's charge capacity while it is in use. When it is time to charge, simply slide the iBAT40 into its dedicated iCHRG40 charger. Just like your cell-phone battery, the iBAT40 has no memory effect, so there is no need to drain the battery or wait for full charge before use. The iBAT40 holds its charge well in storage and will retain up to 65% charge for six months. Easy, convenient, reliable, and super-lightweight (only 2.6 lbs.!), the 40-volt EcoSharp iBAT40 is the smart way to battery pack for your power trip.