Hi Doug, I'm not sure what the warranty says about plugging in an AC adaptor other than that supplied, but here's the info, read off the nearest unit to me, which is keeping my mPower charged up: output 12V @ 1.2A the outside of the plug is negative, the inside positive.
regarding discharging with headphones or speaker, electrically speaking it might be faster to use the speaker, but we actually switch on various internal components to speed up the discharge, so it probably is a very minor factor anyway. regards, Andy. ---- Andrew Riden Software Development Engineer HumanWare Ltd 11 Mary Muller Drive, Christchurch , New Zealand . DDI +64 3 940 2264 Fax +64 3 384 4933 Email: [EMAIL PROTECTED] Internet: www.humanware.com ___ To leave the BrailleNote list, send a blank message to [EMAIL PROTECTED] To view the list archives or change your preferences, visit http://list.humanware.com/mailman/listinfo/braillenote
