HyperPS 2-pcs 1.2V Sub C SubC 1800mAh NiCd Ni-Cd Rechargeable Battery Pack for Power Tools (with Tabs) Review

My wife's favorite Swiffer (the old one with the on/off button right in the handle) is dead dead. So I opened it up, soldered in five of these beauties, and my dear wife started again, to make money with her. uh, I mean using my favorite Swiffer.

The original Panasonic 1300mA C NiCd batteries in my 1970's Craftsman Iso-Tip soldering iron could only dimly illuminate it; these HyperPS arrived with enough power to restore full functionality. A new Iso-Tip iron costs $50 and uses a proprietary $20 battery. The iso tip draws over 5 amps which is a good NiCd workout.

I used these batteries to charge two old Norelco Triple Header shavers - both HP1320 models. I've been using these razors since the early 80's and have never had batteries that lasted so long. I shave once a day, one charge lasts at least three weeks. To maintain this performance, use batteries until they are completely discharged before recharging to avoid the "memory" effect that occurs with most nickel-cadmium batteries.