Klas,
I wouldn't rule out panels because of low current to charge. Charging
Voltage is the important variable. Low current will just extend the
time needed to fully charge battery. Even low current sources could be
made higher current by hooking up multiple panels in parallel.
Drew
On 7/8/2016 7:30 AM, Daan Hendriks
[naturerecordists] wrote:
>
>
> Thanks a lot for your answer, Gerrit, it's been helpful. I'd not heard
> of the Powerfilm Solar panels yet. After having checked the specs of
> my main portable battery a bit more thoroughly it seems I need
> something more powerful (it needs a minimum of 1.5 amps to charge).
> FWIW, I've in the meantime found the Sunkingdom 39w and 52w panels
> which seem to pack a lot of juice and can provide power to a 12v
> battery at up to 2.2A in optimum conditions. These are much larger and
> heavier than the one you use though, multiple foldable panels weighing
> close to 2 kg.
>
> I've also looked closely at the Powermonkey products such as the
> Solargorilla, which have a really fancy marketing and appear to be
> perfect, but online reviews vary wildly. Other than that I've not
> found many other suitable options that are easily shippable to Europe/UK.
>
> Cheers,
> Daan
>
> On Wed, Jul 6, 2016 at 12:00 PM, Gerrit
> <> [naturerecordists]
> <
> <>> wrote:
>
> Hi Daan,
>
>
> I use them frequently and have been having reasonable results (all
> pending proper matching battery to Solar panel,
> panel-wattage/power-needs ratio and of course light conditions)
> with the waterproof, nearly indestructable, reasonably lightweight
> and also operatinal at lower light intensities (typically of my
> Dutch and other (forested) moderate sea climate conditions)
> rollable panels of Powerfilm
> http://www.powerfilmsolar.com/products/?r7__7_watt_rollable_solar_pan=
el&show=3Dproduct&productID=3D271515&productCategoryIDs=3D6578.
>
>
> I typically use 7 Watt panels -either stand-alone or in parallel
> for more charging current- which, at 14.5 Volts (max) deliver 500
> mA (max) each (in optimal conditions. Weight ca 280 grs..
>
> As said, one needs to carefully match the panel with the
> current/power receptive device (typically an intermedate
> rechargeable battery-pack., although I also directly couple them
> panels to my PIXO C-USB one charger fitss all for my AA's Li-IOns
> Camera batts et cet.)).
>
> For details/support I recommend a look at Graham Morfitt's Modern
> Outpost website http://www.modernoutpost.com/about-us/
> <http://www.modernoutpost.com/about-us/> &
> <>.
>
> I purchased my panels with him and am very content in both
> pricing/ordering and pre-after sales. Knowledgeable and helpfull
> Found/owner of the company.
>
> Am not shure whether he still delivers goods to overseas
> (Netherlands in my case). Feel free to contact me for details,
> closer inspection.
>
>
> My 2 cents hope it helps ...
>
>
> G'Day
>
>
> Gerrit
>
> About us - Modern Outpost <http://www.modernoutpost.com/about-us/>
> www.modernoutpost.com <http://www.modernoutpost.com>
> Modern Outpost Canada's Portable Solar Power source since the late
> 1900's Modern Outpost was originally formed back in 1998... seems
> like an eternity in the internet worl
>
>
> Products - PowerFilm Solar
> <http://www.powerfilmsolar.com/products/?r7__7_watt_rollable_solar_pa=
nel&show=3Dproduct&productID=3D271515&productCategoryIDs=3D6578>
> www.powerfilmsolar.com <http://www.powerfilmsolar.com>
> Extremely portable solar panel products - Thin film solar panel
> products for a range of applications including foldable solar
> panels and rollable solar panels used in: camping, RV,
> backpacking, boating, and military.
>
>
>
>
> ---------------------------------------------------------------------=
---
> *Van:*
> <>
> <
> <>> namens Daan Hendriks
> <>
> [naturerecordists] <
> <>>
> *Verzonden:* dinsdag 5 juli 2016 1:38
> *Aan:*
> <>
> *Onderwerp:* [Nature Recordists] Portable solar chargers?
> Hello,
>
> Does anyone here use portable solar chargers for charging
> recording equipment (batteries) when out and about and not near an
> electricity source? If so, I'd be curious to hear your
> recommendations.
>
> Thank you,
> Daan
>
>
>
>
>
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