Stupid Question of the day.... Solar powered shed light ?
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Stupid Question of the day.... Solar powered shed light ?
You might think me a complete numpty but I'll ask anywhoo. £14.99 local hardware shop. Full charge 2x AA batts powers 1 watt super bright flourescent lasts 1.5 hrs. panel 16.5cmx11.5 1.55m cable. Do you think it pos to use panel to charge anything bigger like a 6v motorcycle battery.
Thinking may be able to adapt for internal lighting. or portable dvd's and games. I dont' mind being called silly.
http://tinyurl.com/28ot8h this is same one only costs more.....
Thinking may be able to adapt for internal lighting. or portable dvd's and games. I dont' mind being called silly.
http://tinyurl.com/28ot8h this is same one only costs more.....
- Peg leg Pete
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- Supreme Being
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Hi Biddy
You're a complete numpty!!
As it charges 2 x AA batteries, it's output must be in the order of 3 volts - have you got anything that needs so little power? Also, I suspect it would take a very long time to charge the batteries.
You're a complete numpty!!
As it charges 2 x AA batteries, it's output must be in the order of 3 volts - have you got anything that needs so little power? Also, I suspect it would take a very long time to charge the batteries.
John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
In theory it may be possible, but I wouldn't think it practical due to the length of time it would take to charge. However, solar panels which will charge quite large batteries are available, but at a price. Many of my boating friends use them to top up their leisure batteries ready for when they return to their boats the following weekend.
No harm in asking if you don't know... THANKS PEEPS looks good enough for children's DSfrancophile1947 wrote:Hi Biddy
You're a complete numpty!!
As it charges 2 x AA batteries, it's output must be in the order of 3 volts - have you got anything that needs so little power? Also, I suspect it would take a very long time to charge the batteries.
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- Bongonaut
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You could try this from Maplins- reduced from £19.99 to £9.99. I bought one and certainly the LED flashes merrily during the day while it's attached to my motorbike battery. I've yet to be convinced that it actually works in terms of delivering a useful charge- (why are they selling them off cheap?)
http://tinyurl.com/yuwezp
http://tinyurl.com/yuwezp
Here's a little test:
Q:
The cheap maplins solar chargers are 1.5 watts = 0.125 amps.
If a leisure battery is 110 amp/hrs how long will it take to charge it from flat?
A:
Probably infinity, i.e. it will never charge it. Although theoretically, given 8 hours continuous sunshine every day, maybe 110 days.
I'm sure someone will correct me if my electro-maths is wrong!
{EDITED} And Franco did Edited to show correct figure!
Q:
The cheap maplins solar chargers are 1.5 watts = 0.125 amps.
If a leisure battery is 110 amp/hrs how long will it take to charge it from flat?
A:
Probably infinity, i.e. it will never charge it. Although theoretically, given 8 hours continuous sunshine every day, maybe 110 days.
I'm sure someone will correct me if my electro-maths is wrong!
{EDITED} And Franco did Edited to show correct figure!
Last edited by trevd01 on Mon Mar 12, 2007 10:09 pm, edited 2 times in total.
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