<p>Use your Metabo HPT 18V batteries on RIDGID 18V RED cordless tools, without buying into a second battery platform. Both platforms are rated 18V, so torque and speed on the RIDGID 18V RED tool stay where they should be. The molded ABS housing keeps it light and hard-wearing, and pure copper contacts keep current delivery steady. One battery platform across more tools means less spent on batteries and less to keep charged.</p> <h2>Specifications</h2> <ul> <li> <b>SKU</b> PTA-HPT18-RED18</li> <li> <b>Fits this battery</b> Metabo HPT 18V (Lithium-Ion)</li> <li> <b>Battery voltage</b> 18V</li> <li> <b>Runs these tools</b> RIDGID 18V RED (Lithium-Ion)</li> <li> <b>Tool voltage</b> 18V</li> <li> <b>Housing</b> ABS (Injected)</li> <li> <b>Terminals</b> Copper</li> <li> <b>Current rating</b> 40A continuous (80A peak at 18VDC for up to 2 seconds)720 Watt continuous at 18V nominal</li> <li> <b>Internal wiring</b> 5 mm²</li> <li> <b>Weight</b> 119 g (4.2 oz / 0.26 lb)</li> <li> <b>Colour</b> Black</li> <li> <b>Operating humidity</b> 5–95% RH</li> <li> <b>Operating temperature</b> -10 °C to 50 °C (14 °F to 122 °F)</li> <li> <b>USB port</b> No</li> <li> <b>What's in the box</b> Battery Adapter</li> <li> <b>Warranty</b> 12 months after the date of delivery</li> <li> <b>Revision</b> Revision 01 (released on August 21, 2026)</li> </ul> <h2>Why choose this adapter</h2> <ul> <li>Your Metabo HPT 18V battery and RIDGID 18V RED tools run at the same voltage, so the adapter changes the fitting rather than converting anything.</li> <li>Injection-moulded ABS, not 3D printed — no layer lines to split under load.</li> <li>Solid copper terminals, so less of the current is lost as heat.</li> <li>5 mm² internal wiring, rated for 40A continuous with 80A peak at 18VDC for up to 2 seconds, so a high-draw tool is not held back by the adapter.</li> <li>Covered by a 12-month warranty from the day it arrives.</li> </ul> <h2>Metabo HPT 18V and RIDGID 18V RED compatibility</h2> <p>It works in one direction only: Metabo HPT batteries powering RIDGID tools. For the opposite pairing, see <a href="https://powertoolsadapters.com/collections/ridgid-red-plumbing-pipe-tools-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259848569073" data-pta-action="reverse_click" data-pta-surface="reverse_longform" data-pta-label="RIDGID 18V RED">adapters that run on RIDGID 18V RED batteries</a>.</p> <p>Compatibility can vary with the exact battery and tool model. Before ordering, confirm that your battery belongs to the <a href="https://powertoolsadapters.com/collections/metabo-hpt-battery-adapters?filter.p.m.version2.battery_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259848765681">Metabo HPT 18V</a> platform and that your tool takes <a href="https://powertoolsadapters.com/collections/ridgid-red-plumbing-pipe-tools-battery-adapters?filter.p.m.version2.tool_brand=gid%3A%2F%2Fshopify%2FMetaobject%2F259848569073">RIDGID 18V RED</a> batteries.</p> <h2>Important charging and safety information</h2> <p>This adapter is for powering cordless tools and nothing else. It cannot charge Metabo HPT or RIDGID batteries and must never be connected to a charger of any kind. Always take the battery out of the adapter before charging, and charge it on the original charger made for your Metabo HPT 18V battery.</p> <h2>Before you buy</h2><div> <h3>Metabo HPT 18V batteries</h3> <ul><li> This adapter is not compatible with Metabo CAS batteries. </li></ul> </div><div> <h3>RIDGID 18V RED tools</h3> <ul><li> Not compatible with RIDGID Orange 18V tools sold at Home Depot </li></ul> </div>