【Perfect conversion function】: This adapter can be compatible with Ryobi 18V battery to use for Einhell 18V battery tools. Replace for Einhell Power X-Change 18-Volt Battery 4511396 4511437new 4511437OVP PXBP-300 PXBP-600 PX-BAT52 battery,on for Einhell 18V power tools.
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