[LED Indicator] : Replacement for Ryobi 40V Battery 6Ah. There are 4 LED power indicators installed, 4 LEDs are fully illuminated for 100% power, 3 LEDs are illuminated for 75% power, 2 LEDs are illuminated for 50% power and 1 LED is illuminated for 1%-25% power, which means that the power can be recharged in time when you need it, so that you can work more efficiently
[Intelligent Protection] : Compatible with Ryobi 40v Battery Lithium. The built-in intelligent chip provides our battery over-charge, over-discharge, and over-current protection, short-circuit protection and voltage stabilization circuits. No memory effect, charging at any time will have no effect on the battery
【Product Packaging 】1Pack 6.0Ah 40v Replacement Battery for ryobi and 1 User Manual