Vtin,
You can probably find the information right on Rowland's website(www.rowland.com). There's a specific discussion about the battery power supplies. I kind of asked the same question to Rich Maez, JRDG's Technical Services Director, and he implied that the worth of the battery power supply was relative to the quality of the AC mains power where you live.
You can probably find the information right on Rowland's website(www.rowland.com). There's a specific discussion about the battery power supplies. I kind of asked the same question to Rich Maez, JRDG's Technical Services Director, and he implied that the worth of the battery power supply was relative to the quality of the AC mains power where you live.