Be in awe of the versatility of the Ryobi 36V battery, the ultimate all-rounder Ryobi battery replacement for your 36V outdoor power tools. You can mow a lawn or effortlessly manoeuvre your Leaf Blower or Line Trimmer, thanks to the lightweight design of the power tool batteries. And with its LED fuel gauge, you'll never have to second-guess your battery's charge level while working in the garden. Ready to supercharge your Ryobi tools? The battery dimensions are same as your current battery. Compatibility : This part replaces Ryobi 36V obsolete part #: OP4050A OP4015 OP4026 OP40201 OP40261 OP4030 OP40301 OP4040 OP40401 OP4050 OP40501 OP40601 And fits for original ryobi 36v battery charger. Compatiable with Ryobi 36V lithium-ion tools RY40200 RY40403 RY40204, and chargers OP401 ZROP401 etc. High-Performance : High capacity battery for offers longer run time for your Ryobi cordless power tools. Built in multiple protection protects battery from over current, short-circuit, overheat and over voltage damage. Whether you need to power up your devices or tackle outdoor projects, Battery Mate has you covered.