Just a broadside FYI, since apparently GE and Sanyo don't care much about their own products if they're more than a few years old, and to nail this to the eternal internet wall for all who might need it. Documentation double-checked against this entry.
GE/Sanyo Digital Charger Model MFC
"Do not charging over 24 hours." [sic]
INPUT: AC: 100~240v, 50/60Hz, 3.5W. DC: 12v ~ 13.5v
OUTPUT:
1.8v DC (4 channel)
LED Indication: red ~ steady charging
Ni-CD AA, 700mAh:
2 batteries - 5 hrs
4 batteries - 10 hrs
Ni-CD AA, 1000mAh:
2 batteries - 6 hrs
4 batteries - 12 hrs
Ni-CD AAA, 250mAh:
2 batteries - 3 hrs
4 batteries - 6 hrs
NiMH AA, 1700mAh:
2 batteries - 10 hrs
4 batteries - 20 hrs
NiMH AAA, 700mAh:
2 batteries - 5 hrs
4 batteries - 10 hrs