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Is micro solar now a good idea, a DIY example
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<blockquote data-quote="scolairebocht" data-source="post: 142342" data-attributes="member: 8"><p>This is Wednesday and this writer's laptop and mobile phone have been charged exclusively on the above system since midday last Tuesday week, and the last week has been pretty overcast with a lot of rain. Right now the laptop is plugged in and is at 100%, while the mobile phone is also at 100%. </p><p></p><p>One detail is that I tend to use a power bank for the laptop sometimes (I am a heavy user of the laptop and cannot afford for it to just die on me) but I then charged that back up only on this system, from no other power source. I haven't even used the usual car charging for the mobile, everything has been on this system. That said this system is certainly at its outer limits charging these things, I think the simplest/best improvement would be adding in another 100w panel. Just two further notes: </p><p></p><p>The voltage displayed on the main screen is I think from the panels coming in or some composite of it and the batteries (because if you disconnect the solar panels it will still read a charge) but in fact it seems to go up and down with the sunlight rather than with the battery charge, contrary to what I wrote above. I read the very small manual but its not very clear on the point, it just calls it 'voltage'! Anyway there is a graphic showing the state of the battery, 5 bars for a full battery etc. </p><p></p><p>Secondly in practical use I suffer from the suspicion sometimes that it can reverse the charge, in otherwords take charge from the mobile phone and give it to this systems battery, bizarre I know because it is connected to the 'load' terminals on the controller, but a few times it seemed to do that? Hence sometimes I prefer to connect the phone to that power bank, mentioned above, and then charge that off the system.</p></blockquote><p></p>
[QUOTE="scolairebocht, post: 142342, member: 8"] This is Wednesday and this writer's laptop and mobile phone have been charged exclusively on the above system since midday last Tuesday week, and the last week has been pretty overcast with a lot of rain. Right now the laptop is plugged in and is at 100%, while the mobile phone is also at 100%. One detail is that I tend to use a power bank for the laptop sometimes (I am a heavy user of the laptop and cannot afford for it to just die on me) but I then charged that back up only on this system, from no other power source. I haven't even used the usual car charging for the mobile, everything has been on this system. That said this system is certainly at its outer limits charging these things, I think the simplest/best improvement would be adding in another 100w panel. Just two further notes: The voltage displayed on the main screen is I think from the panels coming in or some composite of it and the batteries (because if you disconnect the solar panels it will still read a charge) but in fact it seems to go up and down with the sunlight rather than with the battery charge, contrary to what I wrote above. I read the very small manual but its not very clear on the point, it just calls it 'voltage'! Anyway there is a graphic showing the state of the battery, 5 bars for a full battery etc. Secondly in practical use I suffer from the suspicion sometimes that it can reverse the charge, in otherwords take charge from the mobile phone and give it to this systems battery, bizarre I know because it is connected to the 'load' terminals on the controller, but a few times it seemed to do that? Hence sometimes I prefer to connect the phone to that power bank, mentioned above, and then charge that off the system. [/QUOTE]
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