The C. Crane QuickCharger battery recharger. $39.95 which includes shipping and handling. Excellent device to recharge your batteries...until the spring on the "spring loaded negative battery contact" breaks. After a few months of use, two springs broke, so I could only charge two batteries at a time. I had had enough and shelled out some money to send the unit back to the company to have them repair said unit. They sent me back a whole new unit. Another few months passed. Once again, one spring breaks, then another, then another. Now I can only charge one battery at a time. I call up the C. Crane toll free customer service number. I explain the situation to the lady on the other end of the line. She tells me that I am better off simply buying a new unit. Factor in the costs, she tells me. I have to pay to ship the recharger back to the company. The company is going to charge me $19.00 just to look at the thing. So I contemplate doing an autopsy on the recharger. It has two philips screws on the back of the cover and that's it. Once I have removed the screws, the plastic cover still won't come off without cracking the body of the housing. The solution seems simple enough. As long at the metal tabs touch the bottom of the batteries, the unit should work. In photo one (see above), I have folded up pages torn out of a magazine and stuffed them into the gap, thus forcing the negative battery contacts to touch the batteries. In photo two, you see how the contacts do not touch the battery as their springs have broken. Only the number four contact works. So this is an inexpensive fix.