Charges single HT at a time. Model N(1?)N4633C (can't read ? number but looks like a "1")From an estate, excellent phys condx, untested, pix can be avail. Input: 110 vac, 60hz, 300mA,Output: 22 vdc, 1100 mA. Price $15 plus postage73Walt (N4GL)(352) 637-1755