Keep your tools running strong with the Ronix 8991-40V 4.0Ah Lithium-Ion Battery. Made for the 40V Ronix All-in-One 89 Series, this battery gives reliable power for all your projects, big or small. Lightweight and easy to use, it’s the perfect helper for home or work.Body and DesignThis battery uses advanced lithium-ion 21700 cells for long-lasting energy. With a 4.0Ah capacity, it can handle heavy work without stopping often. It charges quickly and works with all Ronix 89 Series tools, so you can spend more time working and less time waiting. at just 0.98 kg, it fits comfortably in your hand and attaches easily to your tools.MechanismThe battery gives a steady supply of power, so your tools run smoothly and efficiently. Its advanced cells make sure your tools get the energy they need without losing performance.SafetySafety is built-in with multiple protective mechanisms, including safeguards against overcharging, deep discharge, and short circuits. These features protect both the battery and your tools, giving you peace of mind during every use.PackagingIt comes in a bright, sturdy color box that protects it during shipping and makes it easy to store. SpecificationModel8991-40VBattery Typelithium-ion battery 21700 battery cellBattery Voltage40 VBattery Capacity4 Ahoperating temperature range0~70 ℃Weight0.98 kgPackagingcolor box