Review (5/5): A Rooftop Solar Panel Charges This Excellent 1.2 V Electric Razor
I switched from Remington to Norelco electric razors over thirty years ago and they just work better, as big a difference in efficiency as comparing the ancient push lawn mower, to today's rotary gasoline and electric lawn mowers.
I especially like this Philips Norelco rechargeable model since, using an available accessory, Norelco model # (e4)020417, a 12 Volt adapter cigarette lighter type extension chord-plug, my 140 Watt solar panels on the roof charge two 6 Volt deep cycle golf cart batteries, wired in series to output 12 volts, then a 12 Volt clamp-on extension chord carries the correct charging voltage through the LED lighted accessory chord to charge the razor for free using sunlight photovoltaics. The same batteries also power my living room hi-fi, using a 12 Volt DC to 120 Volt AC (house current) inverter.
The point, the yearly savings are about $40 total in electric bill costs during the, say, five year life of the razor. The same battery bank also charges about 20 rechargeable D, AA, and AAA rechargeable common batteries using a similar DC power chord with a high quality 12 Volt DC fast charger.
Compared to everyone I know, I pay about a tenth for batteries everyone else does, with much more convenience. Unbeatable razor purchase, especially if solar energy is charging it.