42V Brushless 16" Cordless Chainsaw — Dual 5.0Ah Batteries, Charger, Tool-Free Tensioner & Instant-Stop Chain Brake

High-performance cordless chainsaw with a 16" guide bar and brushless 42V motor designed for cutting trees and firewood. The saw ships with 2 x 5000mAh (5.0Ah) batteries and a charger; the dual-battery setup and dual-charging outlet extend runtime so you can work longer between charges. An LED battery indicator plus individual battery level buttons let you check the charge of each pack at any time. Built-in safety protections on the batteries include max 75A discharge overcurrent protection, max 70°C discharge high temperature protection, and max 230A short-circuit protection current, giving reliable defense against common battery faults. The tool also features an instant-stop chain brake for added operator safety and a tool-free tensioner for quick, on-the-job chain adjustments. An automatic oiler keeps the chain continuously lubricated to reduce wear and downtime. For top-handle chainsaw use, add lubricant to the tank based on operating time — after one hour of use it is recommended to add 2-3 scale of lubricating oil. To avoid leakage, do not overfill the tank. This cordless package delivers the convenience of battery power with professional features: brushless efficiency, dual batteries for extended work periods, intuitive charge indicators, enhanced battery protections, automatic oiling, and easy maintenance with tool-free tensioning and instant-stop braking.