Compatible for all Ryobi battery 40v lithium tools - (string trimmer, lawn mower), including RY40200 RY40403 RY40204 RY40530 RY40460 RY40180 RY40250, and OP403A OP401 ZROP401 OP400A RY40440 R40402 RY40402A. Light weight design lets you work in comfort.
Safe Battery - Built-in Protection against overcharging, over discharge, over current, provides short circuit protection and steady voltage circuit. no-memory effects, avoid excessive use and improve working life.
Safe & Stable for - Tested by manufacturer to match or exceed specifications of OEM products. All FirstPower products comply with FCC RoHS and CE security testing standards. A qualified battery can be a strong backup for your tools and help improve your working efficiency.