For detailed specifications click on the chemistry :-

OEM Number	W & W Number	Specifications	Price	Qty
HNN9027A	WC-060W-9027	10.8 v @ 700mAh     NiCD	$32.50
HNN9018A	WC-060X4-9018A	7.5 v @ 1200mAh     NiCD	$35.00
HNN9044A, HNN9056	HC-060UM-9044M	7.2 v @ 1000mAh     NiMH	$32.50
HNN9044A, HNN9056	WC-060U-9044	7.2 v @ 700mAh     NiCD	$26.25