This charger is 7.2-volt to 24-volt
Designed to recharge battery models 330139, 330067, and 329901
Recharge time of 20 to 45-minutes
Can recharge other compatible 14-18-volt batteries
Comes with a 1-year limited warranty
7.2-Volt - 18-Volt battery charger
Ni-Cd and Ni-MH
Universal rapid charger
The "or less" I put in the title considers that currently they are running the 11% off which they send you in a store use rebate check, so if you shop there a lot you price before tax ends up being $3.55 as shown on the link.
Ship to store is also available as shown in the link but no time to research what(if any) amount this would add to the price.
Seems like a good deal for those who have Hitachi Cordless tool batteries, not sure what "other compatible 14-18-volt batteries" are, and or what/if Hitachi makes for other Brand labels.
Also for those instructable types seems like it could be modified to be even more widely universal
There where 7 on the shelf today at my local store