has anybody measured the average mA output from the solar charger on a good sunny day?
2042030
Solar charging does not charge cellphone directly, it transfers power into built-in Li battery first and the battery then charges your cellphone. We measured both of the outputs from the battery, they are both 1A. Please note solar charging charges the internal battery with 180mAh input.
1662735
I've had values ​​up to 1.35 A with on good sunny days. Normal values ​​of 0.8 to 1.1.It's easy to measure current Isc, as you point out, with the multimeter in 10A range, and placing the test leads to the cable ends of the panel, + and -. It is desirable that the multimeter has a resolution of 10 mA.
1542603
Sorry that I do not know how many watts are lost. I just typed 'temperature coefficient' into a search engine and it took me to several solar sites that provided formulas to compute the loss. My outside temperature this summer reached 102. My Ramsonds kept my batteries at full charge. I just mounted four to the roof this late summer. Have not had a chance to see the difference in the charge rate. The pole mount panels are on a different switch than the roof mount. Once again, sorry that I do not know the exact answer. Just increased my system to 14 panels.
912120
50 watts from this unit is assuming a bright sunny day. However, a 12V / 9Amp Hour battery should be able to fully charge during the day....This will give you 3-4 hours running your 3x10 watt lamps during the night. Make sure you connect your battery to the Solar Panel via a charge regulator.
491374
Hard to say exactly because it depends on the intensity of the sun. I charged up mine totally in two full sun days.
700987
I dont know. I have only used mine once when the electicity was out. I haven't even tried charging mine with the solar panel. I keep it plugged in.
541425
I have only had to use it a few times so far, but even out of the sun it appears to charge as long as the power cell has some juice stored in it. I would suggest contacting the manufacturer to be sure, especially if you really need to rely on it for a longer trip.
643248
A good 100 watt solar panel properly aligned to the sun in very bright sunshine will provide about 5 to 6 amps of charge into a 12 volt battery. A commonly used solar storage battery has a capacity of approximately 100 ampere hours (about the capacity of a fairly large "marine" style battery). This battery would require about 12-15 hours of GOOD sunshine to recover from being HALF discharged. This truth is almost always what's left out of the sales pitches for these "plug and play" solar generator systems. Yes, they may have an output of 1000 watts "continuous power"...but the reality is that the storage battery providing that 1000 watts will only last an hour or so. The math is simple. Don't be fooled by vague specifications. ASK QUESTIONS OF THESE SELLERS!!!
7862
It will charge in both direct and indirect sunlight. There is a small blinking LED on the top that indicates the rate of charging.
1635315
I dont know? I only charge the solar into the wall with the ac charge sorry if i didnt complete you answer
267683
I'm showing about 37 open voltage at full sunlight. Around 27 when going thru charge controller.
716277
Theoretically, in ideal sun conditions, your max amp output would be 40A. The adapter would parallel those 4 individual 10A panels together, but it would be up to your charge controller to determine the actual voltage and amperage supplied to the batteries and act as the brain and prevent overcharge.
852804
Using the formula amps = watts/volts you will be getting 8.3 amps at peak sunlight hours. These panels are functioning as advertised. Hope this helps
2179119
Very. It is just a smaller version of other well built solar panels. It charges well and gives about 21v without load.
1512723
I used the 200w report solar panel system to charge that batt. 3 of us ran laptops and phones as well as a heavy water pump and the solar panel kept it full almost always. Did this for 17 days. I'm not sure how much AGM batteries are meant to deep cycle though so look into that.
1413028
The cells are supposed to put out .5volts per cell. Although on a bright sunny day they are pushing closer to .6 volts. I took my almost finished panel today. It was very cloudy outside. I have 4 columns of six cells each. The panel was putting out 14.3 volts @ 1.9 amps. I tested in on a late sunny afternoon with only 3 rows in place. It was putting out around 16v and a little over 5 amps. Hope that helps.
2049927
My panels are wired in series with 12 other panels so I couldn't read each one without putting an amp meter on them individually. The system turns on before sunrise (05:30 here in Tucson) and runs until 7pm in the summer. The summer months allow approx. 12hrs of fully capacity charging and the winter months allow 10 hrs. Non peak charging accounts for the additional 1 or hours I mentioned before when the system first turns on and before it shuts off.