How many hours per day of sun are needed to charge the batteries?
1141608
I would guess 8 to 10 hrs. A day. We don't pay much attention here in sunshine state. They look really well along front of the house they cast a star shape light.
1141609
You need several hours of sunlight, probably a continuous cycle of sunlight during several days. It will burn weakly but goes out after a few hours if the sun has not recharged them totally. Other than that I like the lights, the light produced when fully charged and being able to place where I want light.
1141610
They need full sun for at least six hours. The battery lasts until about 10:00 PM.
1141611
Since they sit in the sun all day & then come on automatically at night, seems like over 10 to me. Maybe 8?
1141612
I can't say exactly ... we have a lot of shade in our yard and they still charge. These lights are very durable and nice, although not super bright, but enough to line our walkway and driveway. I would Rec them for the brand and price!
632204
8-12 hrs depending on amount of direct sunlight, but u need to position it correctly ( not a big deal ) as sun moves. USB charging works very well to re-charge ...... its handy given you have off grid capability if required and it does't rain all week LOL
534546
A hour or two. Very worthwhile. The price is cheap enough to have sufficient power to do the job. Don't plan on a quick recharge. Just have enough for the job. If the job is very long. You can recharge while the other batteries are working.
1783344
Anker makes some fairly nice USB batteries that you can buy on Amazon for under $50. You could use one of those batteries with the solar array and have power left three days later.
717653
I would think you would need at least 6-8 hours of daylight for it to get a good charge. It seems to do fine on cloudy or rainy days as long as it gets some sun for most of it. I live in Florida, so we don't generally have a ptoblem getting plenty of light for keeping it charged.
1568754
they are solar powered so the battery gets charged in the day time by the sun
1419165
I charge my batteries for about 8 hours in the night. I use the camera for charge and I buy an external charger too. The battery life is around 2.5-3.0 hours. My memory card is for 6 hours, because this I buy another 2 batteries.
1563378
I get only about 12-17% charge to my phone per each charge of this solar device. The solar device takes about 20 hours to charge in the sun
491375
At 5 watts this charger can produce a max current of ~0.4A: I(A) = P(W) / V(V)So every hour, it can provide 0.4 Ah (amp hours) of charge. Batteries come in all sorts of capacities, and are rated in Ah (amount of hours it can deliver one Amp of current.) So to calculate this you can estimate at about 2.5 hours for each Ah of battery capacity. If if you have a typical 50Ah battery it would take 121 hours of sun to deliver a full charge. This is not factoring in any inefficiencies of the charger, battery, or normal drain over the extended charging time.
618596
Not by more than a few minutes. Would take three or four full days of sun to charge your battery, and thats when your not using it.
426209
I'm sure you can let the sun charge it but I charged mine overnight because it gave it a full charge to start. It won't charge at night or cloudy days so best to start with a full charge.
2213913
It's not solar powered. I don't use mine much, so the batteries last quite a while. For constant use, they last about 12 - 24 hours.
1132062
Approximately 6 hours in direct, full sunlight. Try to keep the panels at the proper angle by adjusting panels in relationship to the sun for maximum charging of the battery.
2262377
So far I have only charged off a USB port, works fine, in 8-12 hours. The claim is that the solar cells will charge in about 4 hours, but have not yet had occasion to try it out, the savings of electricity in the city probably not worth the wear and tear, e.g. peeling off the plastic!
1235307
Rommel, I agree with Tim. It depends on what you are going to use the stored power for. For example, on average you will charge the batteries 10A for six hours or 60aH. If you are running a water pump that pulls 5A for 15min every hour you would need approximately 30Ah to run 24/7. In this case one battery is more than sufficient. In my case I run LED worklights and cameras. I pull about 10A for 8 to 10 hours which adds up to approximately 100Ah per day. Taking battery degradation and the fact not every day is 100% sun, we use two batteries. Hope this helps with your scenario.
1290504
I have used them for 6.5 hours so far today on one charge. The battery is still going.
2119047
2 hours with all 48 LED's is about the max depending on the amount of sunlight it gets between uses, it takes a full day of full sun exposure to fully charge so anything less then that will shorten the duration