Cordless Chainsaw: the cordless chainsaw is compatible for Makita 18V batteries, e.g.: BL1860 BL1850 BL1840 BL1830, more portable for cutting wood, garden pruning, branch pruning, shrub pruning, no need to connect to electricity; Widely used in gardens, farms, parks, forests, pastures, fruit 11.1 - 1used. Cut through a 6 inch branch only 8 seconds, fast like cutting butter. Lightweight as 2.3 lbs, portable to control with one hand, also for women and the elderly to easily cut off dead branches, small trees, trunks and brushes. Easy to Install and Tension:You can rotate the chain tension for the mini chainsaw without tools, and the tool-free rail tension knob as well. If you want to replace the chain, just repeat the same process, just note the direction of the cutting teeth. The chainsaw is ready to use almost immediately after unpacking. Measures to protect against mutual influence: 1. Equipped with anti-cut gloves that protect your hands; 2. Safety lock prevents accidental activation (simultaneously press the safety lock & start button for the chainsaw to start); 3. Safety baffles prevent the wood from splashing; 4. Anti-slip texture handle design, let the mini chainsaw grip firmly; safety comes, please feel free to use it!