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This adapter lets Porter Cable 20V lithium-ion batteries power Hercules 20V cordless tools from Harbor Freight. Both platforms run at 20V, so the only real obstacle is the battery socket, and this part bridges it. It is built from molded ABS with copper terminals, 5 mm² wiring and a 40A continuous rating (80A peak for up to 2 seconds), plus built-in BMS electronics. It suits owners already invested in Porter Cable batteries who want to add Hercules tools without buying a second battery and charger set.
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This adapter lets Porter Cable 20V lithium-ion batteries power Hercules 20V cordless tools. Both platforms are 20V, so the adapter changes the fitting and does not convert voltage. It works in one direction only: Porter Cable batteries powering Hercules tools.
The housing is injection-molded ABS with copper terminals and 5 mm² internal wiring. It is rated for 40A continuous, with 80A peak at 18VDC for up to 2 seconds. Built-in battery protection electronics (BMS) cut power before the battery is drained too far.
The adapter only powers tools and cannot charge batteries. Never connect it to a charger. Remove the battery from the adapter and charge it on the original charger made for your Porter Cable 20V battery. Compatibility can vary with the exact battery and tool model, so confirm your battery is Porter Cable 20V and your tool takes Hercules 20V batteries. The Hercules Heat Gun works only with a battery of 5Ah or more, in short runs of about 30 seconds at a time. The Hercules Band Saw is not currently compatible.
