Does 7.5V battery [5x 1.5V] work removing rechargeable battery[6.6V when it is fully charged]? 6V[4x1.5V] isn't bright. Solar panel makes over 7.5V
78063
I really couldn't say. I have 3 of these lites and 2 of them have worked right out of the box for almost 2 years-very bright even with little sunlite- one however works only intermittently, perhaps a battery change is what this one needs
78064
Sorry but I have no idea. I put the light up when I recieved it and it is still as bright as that day. It works great and I have had no reason to remove the batteries.
1344352
I did not notice that either... my best educated guess would be that it can charge up to 8.4v, but will also be able to handle the 7.2v by automatically charging at a lower voltage... i could be completely wrong though... i bought this kit a few months ago for a sony handycam that i bought to record my engagement. the charge on the batteries lasts a long time! even if the charge hasn't been topped off recently. i charged both batteries when i first bought this and really only used and recharged 1 so far. i decided to pull the 2nd one out of my bag pocket and it still had full charge. it had only been like 2 months since it was charged last, but it was still fully charged... hope this helps.
470390
It has a "Soft" charge function. If the battery is too far gone there might not be any help for it. Look up Steven Harris at solar1234<dot>com. He has done fantastic work on the subject of rechargeable batteries.
264281
This is a typical panel designed to charge a 12v battery. This means realistically that the voltage will be tied to the voltage of the battery. As the voltage in the battery increases ( due to charging ), so will the voltage produced by the panel. You need to have a charge controller between the panel and your battery, or you will damage your battery. This will disconnect the panel once your battery is fully charged. Typically, charge controllers will also limit the voltage to around 14.4 volts or so. Cars actually run at 13.8v, not 12v.
501497
I don't think the battery is replaceable. In the manual it says it can be charged directly with a solar panel 20 watts and lower. however I have a 15 watt panel hooked up to it and the charging light does indeed come on indicating its charging, but It never seems to charge at all. Its been charging that way for over a week and the battery meter still says its almost empty. I have tested the solar panel with a multi tester and I was getting over 20 volts and about 700 miliamps in the sun, so I know power is getting into the powerpack... It appears to charge fine via the ac wall plug. I bought this with the intention of charging it via the sun and I have seen some bundles with this powerpack and a solar panel so it must work. Maybe I just have a defective one...
1786605
This is a good solar panel. I have 2 batteries connected parallel, + to +, and - to -. This gives me the same voltage- 12 volts. I run my garage door opener and some accessories in my garage off a power inverter. The Ramsond solar charge regulator shuts off when batteries are full. Like T.J. said, make sure you aim the panel for best results, and hopefully its not foggy where you keep your boat!
2091421
Yes, this battery can accept from 12V to 19V DC power for charging. If you have a solar panel with output voltage 12V ~ 19V, you can use it to recharge this battery. The charge port connector size is 5.5x2.1mm. Best regards.
837958
The panel does not output 5W like the specs and other reviewers suggest. The integrated *battery pack* outputs 5W, but the panel itself seems to only output in the range of 1W to 1.5W.From the specs directly from the manufacturer, the battery is 2200mah, and it takes the panel 10 hours to charge it. If you work the math out, that means it charges 220mah per hour, which would be 220ma of current @ around 5V (maybe slightly higher?), 5v * .22a = 1.1WJust because the unit has the capability to output at 5W, doesn't mean it can collect power from the sun comparable to a 5W panel. The panel does not output 5W like the specs and other reviewers suggest. The integrated *battery pack* outputs 5W, but the panel itself seems to only output in the range of 1W to 1.5W.From the specs directly from the manufacturer, the battery is 2200mah, and it takes the panel 10 hours to charge it. If you work the math out, that means it charges 220mah per hour, which would be 220ma of current @ around 5V (maybe slightly higher?), 5v * .22a = 1.1WJust because the unit has the capability to output at 5W, doesn't mean it can collect power from the sun comparable to a... » Read More The panel does not output 5W like the specs and other reviewers suggest. The integrated *battery pack* outputs 5W, but the panel itself seems to only output in the range of 1W to 1.5W.From the specs directly from the manufacturer, the battery is 2200mah, and it takes the panel 10 hours to charge it. If you work the math out, that means it charges 220mah per hour, which would be 220ma of current @ around 5V (maybe slightly higher?), 5v * .22a = 1.1WJust because the unit has the capability to output at 5W, doesn't mean it can collect power from the sun comparable to a 5W panel. « Show Less
1173233
Eileen, Thank you for your purchasing.The situation is normal in most of cases.The 5w kit can charge 1-2AH/day to a 12v battery in good sunshine. So if the battery is larger than 12v 10ah, it take more time to full charge the battery.You can use a multi meter to test the current to the battery to confirm that the panel is still charging the battery.
779402
I have 6 12 V 35AH batteries. I wish I had one more panel to charge in one 5 hr period. Here are my calculations. Assuming a 50% charge, each battery needs about 17 AH to recharge. 2 panels each put out about 8 amps. so 8 hrs X 16 amps is 128 AH. 128 / 17 is about 7. So my answer would be 7 35AH batteries.
1373233
If you started with a fully charged battery and ran on hi setting how soon, if ever, would the power degrade to the point where brightness was affected? I have never tried it so I don't know for certain. The spec sheet says it will put out 5000 lumens (brightest setting) for one hour 15 minutes.The charger output is 2 A.The battery rated output is 5200 mAH.The charging time Is about four hours. So you could calculate but. if it didn't work you could use back up battery pack(s). You have me curious now about what kind of an application would allow you to have it plugged in to AC four hours.
1038346
The 4 I have are 7.4v. The battery that came with the Sony Handycam is a 6.8v. I have no issues.
1867174
I don't know about that one. I've always hooked up the 12V battery directly to the solar charger. A lighter adapter didn't come with the solar panel.
1966159
The 100% really means nothing when read from the meter. Battery capacity isn't measured like that. A full battery is 12.7V with no load attached, and no external charging applied. You drive the voltage above this to help reverse the chemical process, and get the sulfates detached from the plates by utilizing as much potential as possible.
123867
You would find that the output would drop to zero by 22V. I have one connected to a big 24 volt battery rather than a panel directly, and the output varies from around 430 watts at 28 volts (the peak voltage when charging) and drops to 220 watts at night when the battery is around 24v at night. The 600 watts is a peak for when panels give high voltages.
1635296
Yes it has to be charged only by a direct current transformer which is provided. DC 5V/2A, means that the input voltage, to recharge the battery is 5 volts of direct current. 2A is the amount of amperage that is suggested to recharge the battery. This dose not mean that a transformer of lesser amperage won't charge it it would just take longe. Think of amperage as a pipe the larger than amperage the bigger the pipe.
1616690
This may not help you. I have to recharge after 4 bars. Not sure about the accuracy of these meters. If you have a meter that can read the state of charge down to decimal places, make sure the batteries are at around 38 volts or more. That is for a 6-pack. You may have to measure each individual battery to see if any are below charge. I have a 1000 watt solar system and download charging charts from battery sites. A battery can show a full charge, but fail under a load.