Superior Runtime, Power, and Performance HP Technology Communicates With Brushless Tools to Maximize Performance Over 225 ONE+ Tools – All Work With Any RYOBI ONE+ 18V Battery RYOBI introduces the 18V ONE+™ 4.0AH LITHIUM+™HP battery. This battery features advanced electronics to allow you to maximize tool performance with added capacity to all 18V ONE+™ tools. With superior runtime, power, and performance, this battery can take on more demanding applications than ever before with the introduction of HP technology. HP technology communicates with Brushless tools to maximize performance in all applications, allowing users to make faster cuts, drive larger screws, utilize bigger drill bits, etc. It has a durably constructed frame for impact protection and has a built-in 4-bar illuminated charge indicator. These batteries can be paired with over 100 tools from RYOBI’s 18V ONE+™ lineup.