Check the listing for details. Greenworks 48V (2x24V) 16 inch String Trimmer Attachment Capable (2)x4Ah Battery. Condition: New. Listed at 249.99 USD. Greenworks 48V (2x24V) 16 inch String Trimmer (Attachment Capable)w/ (2) 4.0Ah USB Battery & DualSlot Charger2123402 STE457 ST48L4410Including - (2)x 24V 4.0Ah USB Battery and 24V Dualslot ChargerUsing two 24V batteries to generate 48V power.16 inch Cutting Path0.095 inch Dual LineBump Feed SystemUp to 45 Minutes for RuntimeAttachment Capable - Accepts most attachments from multiple brands.Brushless motorLock-Out ButtonVariable Speed TriggerHigh / Low Speed SelectorAdjustable Auxiliary HandleCushioned Overmold GripUSB Battery can be used as a 30000mAh Power Bank3 Year Warranty for the device and battery. What's included1 48V String Trimmer2 24V 4.0Ah USB Battery1 24V Dual Slot Charger1 Auxiliary Handle1 Should Strap1 Guard1 User manual Greenworks 24v Battery SystemThe Greenworks 24v Li-ion System is a range of 24v tools where all 24v batteries of all ah ratings fit all tools, allowing you to buy just a few batteries but as many of the range of bare tools that you need without the expense of a new batteries and chargers each time. In some cases there may be tools that take 2 x 24v batteries to power a 48v motor - These are still part of the 24v battery system but with the added benefit of a more powerful motor.