Last News of Technology and Science > portable > freeplay weza
» The FreeCharge Weza portable energy source and the Indigo self-sufficient lantern (October 2006)

The FreeCharge Weza, the
portable energy source, is a versatile, robust energy source
providing totally dependable power for emergency situations and
everyday use in remote locations. The FreeCharge features an
internal rechargeable lead acid battery capable of jump starting
a range of vehicle and outboard engines, as well as powering a
range of other devices. The FreeCharge can be recharged from
either an AC or DC source eg wall, solar, wind (solar and wind
options not supplied) and, in emergency situations, using the
step treadle. The FreeCharge will accept up to 110V to 240 AC
and DC inputs from 10.7V to 21V.
Good Points
Self-contained, Portable, well-designed, durable construction,
dependable power. The battery is an AMG type so it is totally
sealed and will not leak even if cracked. 2 year warranty(
except battery - about $40 to replace yourself).
Bad Points
Somewhat Noisy. Charger is not regulated so you can not leave it
plugged in all the time as an emergency backup. You need to
periodically (5% discharge/month) top off the battery for max.
battery life and emergency readiness. I wish they would just
charge $10 more and throw in the multi-voltage transformer for
small electronic devices.
General Comments
If you want to see what the Freeplay Weza stand-by generator
looks like, you can see it at the Freeplay website.
Freeplay finally released the WEZA. They had a problem with the
quality of the foot pedal, and they had to replace them on all
the units that were originally shipped back in Sept/Oct 2005. I
give credit to the U.S. distributor for refusing their first
shipment of 1000 of these because of this weakness. The
distributor told me this was very unfortunate, because this was
at the time that Katrina was tearing things up, but they could
not sell them, even though they had many inquiries about them.
I got mine last week (3/6/06). It comes in a very rugged
water-proof nylon carry bag. It has a 2 inch, rubber bottom, so
if it sits in water it will not ruin the generator. There are
internal pockets for the included heavy duty jumper cables, the
AC/DC battery charger, the cigarette lighter plug with seven
different sized adapters for different electronic devices, two
wrenches, and there are three other pockets for whatever else
you might want to keep with the generator. There are also six
outside pockets. The bag has 1 inch reflective tape sewn around
all four sides. Very professional looking. The zipper used on it
is a large toothed heavy duty design too. This bag will take the
wear and tear of transport, and protect the generator as well.
Very professional looking - blue with yellow lettering.
The generator weighs 18.7 lbs. The size with bag is comparable
with a 20 bowling ball bag. The shell of the generator is a very
heavy plastic. Contact surfaces on the bottom and on the pedal
where your foot rests is a rubber type material, so the unit
will not slide around, or your foot won't slide off the pedal.
The rubber feet also wrap up the back, so it could be set
against a wall or object and not scratch things up. The only
metal exposed on the outside are the screws and a bar between
the fold-out legs, which appear to be stainless steel. The
pedal, by the way, is very solid.
There is a panel opposite the pedal side for battery/generator,
input/output, and a simple 6 green LED meter that tells the
level of battery charge or the amount of current you are
producing as you push the pedal. The meter is not specific as to
voltage or watts, but is general a guide. There are two
input/output terminals to attach the jumper cables/battery
charger, a cigarette lighter type female plug, and a small 1/4
inch female input plug for the supplied ac/dc recharger. I
purchased a 12 - 3 volt transformer that plugs into the
cigarette plug to power different voltage electronic devices
(radios, CD player, cell phones, and GPS etc.) This is really a
must to have to take full advantage of this generator in
emergency situations. They only cost about $12. I think C.Crane
Radio on the internet has a nice one, but I got mine at Best
Buy. Freeplay also sells one. The plug they provided with the
unit is very well built, so it might be worth checking theirs
out too. It might even be wise to get two. I also have a couple
of solar panels (10 watt) I can use to keep it charged if power
fails. The battery will take an input voltage of 13 - 21 volts.
A wind generator is also a recharge option. You can recharge the
battery with the generator of course, but I think I read
somewhere that a 50% discharged battery will take 3 - 4 hours of
pedaling - don't quote me on that. There is a switch that
disconnects the internal battery from the generator so you can
charge other 12v batteries directly. (EX. charging a battery on
a car/truck for starting, which requires about 5 minutes
pedaling to get a sufficient top charge for cranking the engine
- NOT a full recharge of the battery by any means)
I was surprised at the level of sound it produced. The low speed
gears and the high speed gears and generator rotor produce
enough noise to knock out a whisper. You can talk above it
without any problem, but it's not something to take to the
library or movies. It's not like a bike where the pedal goes
around, but it is pressed down and springs back up. Therefore
the output is not a consistent level. Assuming each light of the
meter is a little over 3 watts and they start at 25 watts, I can
sustain a constant 25 - 34 watt range. It takes a fair amount of
muscle to do this. It is more the awkwardness of sitting and
pedaling than the amount of energy expended. It is easier to
stand, but that gets awkward too. I don't think I could sustain
it for more than 10 - 15 minutes without a rest. IF you are only
charging/powering small electronic devices, you will not use
much of the 7 amp/hour reserve in the battery. I made a small
plug in 4 LED light for the cigarette lighter. If my Freeplay
flashlight can power seven LED's for 20 minutes (on low setting)
with only 30 seconds of winding, this thing must be about 20 -
40 times or more power. I want to make another light with one to
three 1-watt LED's. I have a flashlight with a 1-watt, and it is
very bright.
I plan on keeping this little puppy. It will do exactly what I
wanted. It is a source of emergency power that will keep small
electronics up and running indefinitely. I also purchased a 12
volt battery charger for AAA - D sized rechargeable batteries. I
was affected by the multi-state power grid failure about three
years ago. I realized that if something like that lasted more
than about 5 - 7 days, there will be no gas for generators.
Solar is a very good option, but it is not easily portable, and
is of course sun dependent and needs a storage battery. For real
emergencies , this unit would be easy to transport, and should
be ready whenever needed.
Link: Freeplay Weza
References: reviewcentre and gizmag
Popular:

Digital microscope

The World's Fastest Cars

Comfort Sphere

USB Powered Roll Up Piano

SAMSUNG 10 Megapixel Camera Phone

Concept Cell Phones of the Future

Zeiss Ikon SW Superwide Camera

Curon QCOX ; PMP with a wheek key

ENV fuel-cell motorcycle prototype

LG CYON-Shine SV420 Mobile Phone

Audi Quattroflex

Embrio One-Wheel Concept

Asus W6Fp Luxury Notebook

Teksta Aibo V2 Robotic Puppy

D-Note Digital Note Pad