Thank you for your detailed feedback. We are glad to hear the saw provides strong cutting performance, though we understand the challenges you have described. The battery runtime depends on material density and cutting technique; hardwoods and larger diameters will naturally reduce runtime. It’s also normal for lithium-ion batteries to heat up during heavy use when this happens, most chargers will not begin recharging until the pack cools to a safe temperature, which can add time between uses. Regarding the oiling system, the chain requires consistent lubrication for proper operation. If the oil port becomes clogged, the chain can quickly run dry. To avoid this, we recommend checking and cleaning the oil reservoir cap and port before use, and using a high-quality bar and chain oil. Regular maintenance helps prevent sawdust buildup that can block the flow. Running the saw without proper lubrication can shorten both chain and bar life. For extended cutting sessions, having a second charged battery available can help reduce downtime while one pack cools and recharges. We hope you will find this information useful. If you require any additional support or have questions regarding a product, we recommend try our Q&A section on the product's page or Chat with us direct on our website www.greenworkstools.com.