Postscript 22 Januari 2017.
|Waka-waka-Base10 solar set: foldable solarpanel,|
base10 powerbank, two ledtorches, two usb-cables (not shown)
When I joined the project there was no product at all. I did not know the people behind the project and there was a risk that the project would fail. And indeed there were technical problems in its development and production. Design modifications were made. Now, a year later, there are four products on the market: two versions of a small solar panel with on the backside two powerful led lights callled WakaWaka Light and WakaWaka Power; and two versions of a larger foldable solar panel called WakaWaka Base which includes a separate powerbank and two small led torches (see photo). The WakaWaka Base is reviewed in this blog post.
|Base10 powered by solar panel (indicated by red led) and|
charging an iPad and a led torch; and powering a led torch
(indicated by blue led) all at the same time.
(white Apple© cable).
My experience is that as early as 1 hour after sunrise (in September) the powerbank shows 2 red leds (50% speed) and maximum charging speed is reached outdoors on a sunny day within 2 hours after sunrise (4 red leds).
When the button in the middle is pressed, it shows 1 - 4 green leds indicating 25%, 50%, 75% and 100% charge.
My conclusion is that when the solarpanel is outside in constant sunshine the base10 can be fully charged in about 6 hours. Addtionally, the base10 comes with the possibility of on-grid charging, but no adapter is included in the package. That's reasonable I think, because a solar panel is a solar panel.
|The two torches can be connected in series and |
can be controlled with the smart central button of the powerbank
That is thoughtfull design!
Furthermore, devices coming with an USB-connector can be charged such as iPad, iPhone, KOBO eReader.
|Base10 charging a KOBO e-reader|
(blue led indicator) with wakawaka usb-cable
I performed a test with an iPad2: it can be charged from 22% to 100% in 4 hours. This means an empty iPad2 can be fully charged in about 5 hours with the Base10. That is, I guess, about the same time or even faster than charging from the electrical grid. Not bad.
An iPhone 6 and iPad Air can also be charged with an Apple cable using the USB-plug to connect to the WakaWaka Base10. One should be able to charge all other mobile phones and tablets with a USB-cable.
I performed all these tests with a brand new WakaWaka. It remains to be seen how well it performs after a couple of years. What happens with the 182,226 wakawakas distributed worldwide at the end of the usefull life-cycle of the batteries? How long do the batteries last? According to the WakaWaka website the battery needs to be replaced after approximately 3 years if you use it every day. When used only once a week, you don’t need to replace the batteries for about 7 years. In the FAQ How do I change the batteries? a complicated procedure with a screwdriver is shown and that applies to the WakaWakaPower. There is nothing in the manual of the Base10, if it could be done at all. Changing the battery of my camera is a lot easier. It is not yet possible to order a new battery at the WakaWaka webshop.
What will happen with the old batteries? Will they be a burden to the environment? I hope the WakaWaka company will develop a recycling scheme to prevent environmental disaster. Will it ever be possible to develop a battery that lives for 10 years or more with heavy daily use? Whatever, this is an amazing and thoughtful product which harnesses renewable energy for the benefit of both the Western world ànd the developing world.
This is an updated version of my blogpost in Dutch of 8 September.
I thank Susan for correcting my ugly English and removing some stupid misspellings.
minor update 24 sept 2015
Latest News (18 Sep.)The Wakawaka base10 was sold out at the end of 17 September and today it has been removed from the web shop. Similarly, amazon has removed both base5 and base10. So, there is no possibility to pre-order. At the wakawaka webshop you still can buy the base5, which is somewhat less powerful and costs 20 euro less. The website https://www.solarpowersupply.nl still has a few in store!
I tried to enter a review of the product at the wakawaka web shop, but that is (I think!) only possible via the product page of amazon (!). But since amazon removed the item from its website it is still impossible to write a review.
Postscript 2 Oct 2015
|WakaWakaBase10 charging a Sony camera battery|
(adapter and cable not included)
With a fully charged WakaWaka the camera battery is charged from 12% to 100% in 4 hours. So, now I have a solar powered camera! [2 Oct 2015]
Postscript 17 Dec 2016I found a very useful battery charger that can be plugged into the Wakawaka-Base10 with a usb plug: the Sycees (see picture). (similar to camera battery charger above). Finally I can charge my AA and AAA rechargeable batteries with the wakawaka solar panel (indirectly). The disadvantage of stand-alone solar battery chargers I used up till now is that those solar panels are too small and too slow compared to the Wakawaka solarpanel.
Wakawaka charges shaver with the sun22 jan 2017
Wakawaka base10 charges a hand-crank usb shaver:
|Waka waka Base10 charges shaver!|
The shaver (available in amazon) can be powered manually with a crank, but I discovered also with the Wakawaka base10. The shaver is delivered with a miniusb–usb cable. Another device that can be powered by the sun!