Klein Tools KTB500 Portable Power Station, 505 Wh, 500W, up to 1000W Pure Sine
Brand new Klien Tools KTB500 500W Portable Power Station / Pure Sine Backup UPS Power Supply Generator. You will see the price difference in non-sine wave balanced models vs higher priced sine wave balanced models. PURE SINE is simply meaning that the UL has verified this device to be safe with modern laptops or SFF computers. There is nearly zero risk with a pure sine battery bank for backup. However it is always recommended to back up your data somewhere safe.