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Can I charge a netbook directly from a solar charger?

My Asus Eee charger is no longer charging and I find myself with a useless netbook as I have no spare charger. Instead of purchasing a universal laptop charger, I thought I might go for the versatility of this solar charger, which is on offer at £49.99 until Tuesday. This would be cheaper and more versatile than a laptop charger when factoring in electricity costs over a decade (it's also far more likely to function after such a period).
The output of my current netbook charger is 19V, and the current is 2.1Amps, so am I right in thinking the solar charger would simply take about twice the time to charge it? Also, what is Open circuit voltage?
http://www.maplin.co.uk/solar-powered-12v-15w-battery-charger-508575
Technical specifications:
Peak output power: 15W
Voltage (@max. power): 17.5V
Current (@max. power): 680mA
Open circuit voltage: 22V
Short circuit current: 1A
Tested under standard condition: AM1.5, 100mW/100cm² @25° 1]Connecting cable with cigarette lighter adaptor
Supporting frame
External dimensions: 98(l) x 34(w) x 1.5(d) cm Panel dimensions: 90(l) x 29(w) cm
Weight: 4000g
Contents:
15W amorphous solar panel with 3m cable
Connecting cable with battery clips
Connecting cable with cigarette lighter adaptor
Supporting frame

Comments

  • Jnelhams
    Jnelhams Posts: 1,363 Forumite
    £49.99 bargain, and £399 for the flight to Las Vegas..... Sorry these Solar panel gadgets rarely work well outside of California or the Sahara.
    My Mind wanders, if found please return.
  • kwikbreaks
    kwikbreaks Posts: 9,187 Forumite
    Also, what is Open circuit voltage?
    That is the voltage the cells develop when there is no (appreciable) load - ie what you'd see if you just put a volt meter on it. All power sources have some internal resistance and when delivering current some of the voltage gets dropped across that internal resistance.

    Just buy a proper charger - it will be cheaper and a lot more reliable.
  • You will undoubtedly get economy 7 rates over night too :p
    4.8kWp 12x400W Longhi 9.6 kWh battery Giv-hy 5.0 Inverter, WSW facing Essex . Aint no sunshine ☀️ Octopus gas fixed dec 24 @ 5.74 tracker again+ Octopus Intelligent Flux leccy
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