I have charged my pump for days using the solar charger and then took the batteries out and charged on a battery charger and the pump never shows green only red. I measure the battery and it is at 13V. The pump works it just never shows charged. Is this normal? I have charged my pump for days using the solar charger and then took the batteries out and charged on a battery charger and the pump never shows green only red. I measure the battery and it is at... » Read More I have charged my pump for days using the solar charger and then took the batteries out and charged on a battery charger and the pump never shows green only red. I measure the battery and it is at 13V. The pump works it just never shows charged. Is this normal? « Show Less
1805771
I did the same thing. Charged the battery reading 13v but the pump has a red light and then a green light but it never goes on. I thought this pump would work great but it has given me a lot of problems.
1292165
It took days to charge at first, then it would charge up showing green but run down very quickly Then it started to just shut down at any water resistance flowing thru it. I hate it! It's one of those things that sounds good in theory but ............
1805772
I am glad your pump works as mine has not since the first few months.i fussed around with it, and it only charged for a few minutes. We have lots of sun here, so this is not a problem. I gave up and ordered a different type of pump that I can charge any time and take any where.
1084531
Good question, i finally charge mine for the first time last night and fell asleep after. Woke up and its still red. Would be nice if it turns green.
1878831
When the battery is fully charged the green led comes on, however it is not known to me how this charger differentiate from ni-cd to NMH batteries and they do have different voltage levels when charged. Most battery chargers have a switch that allows you to select the type you are charging, this one does not
563723
The Rukus is always in solar charge mode. Just put it near a window or under an incandescent light and the red light goes on to show it is charging. If yours does not charge, even under a light, then it may be defective. Hope this helps.
1694166
Dear Aya, That's normal. The new charger blinks instead of having the steady red. After the full charge you will see a steady green light. Please contact our customer service if you have more questions. all the best, Team Tendlite
1098571
I think red light means there is not enough charge in the battery. I have not used my converter for a few months but I think a green light will show when charge is Adequate.
1562697
Good question, I tried to charge mine using solar recently and they did not charge . I have been very busy recently and haven't had a chance to figure out what is wrong
2153876
I put on a full charge initially, and I believe that is what the instructions say to do. When you place one in the charger, the LED on the charging will be red until the battery is fully charged, then it will turn green. Make sure battery is placed on charger correctly, or a dead battery will generate a green light immediately, even though it is dead. If that happens, just unplug, replace the battery correctly on charger, and plug it in again. Works perfectly for me. My batteries were both red and needed charging when I received them, even though they had enough charge to power camera up right out of the package. Good luck I put on a full charge initially, and I believe that is what the instructions say to do. When you place one in the charger, the LED on the charging will be red until the battery is fully charged, then it will turn green. Make sure battery is placed on charger correctly, or a dead battery will generate a green light immediately, even though it is dead. If that happens, just unplug, replace the battery correctly on charger, and plug it in again. Works perfectly for me. My batteries were both red and needed charging when I received them, even though they had enough charge to power camera up... » Read More I put on a full charge initially, and I believe that is what the instructions say to do. When you place one in the charger, the LED on the charging will be red until the battery is fully charged, then it will turn green. Make sure battery is placed on charger correctly, or a dead battery will generate a green light immediately, even though it is dead. If that happens, just unplug, replace the battery correctly on charger, and plug it in again. Works perfectly for me. My batteries were both red and needed charging when I received them, even though they had enough charge to power camera up right out of the package. Good luck « Show Less
1984657
I charged mine last and the light wasn't showing green. I left it on longer and eventually the green light showed up. Mine was only a year old.
1025614
pump maybe not charge,solar panel need be charged on fine day,it can not be charged on cloudy day
2269891
Mine does go from red to green but it takes a long while to do so. Batteries charge rapidly and then each addition step takes longer so sometimes it takes really long for the cut-off to "trip". Here is a suggested test: charge the battery overnight then unplug it but do not use it and let it cool down. Now plug it in again and after about 30 minutes, see if the battery is hot. If that is the case, you have a defective charger and should consider returning.
728422
I used a volt meter and it went into float of 14.2V and dropped to 13.2 and went back to 14.2 and again dropped to 13.2V. That seems to be the float cycle. It did charge the battery for awhile with a slow rise before it went into float. I was using a 30W Renogy mono solar panel. I have 2 of these and they both work as described. I would not leave them on once the battery is full, and it goes into float, for too long. Batteries can be overcharged. I hope this helps, I did a review on youtube with the 30 W panel, showing the float.
2115090
I've seen some discussions where there was a regulator required for use with solar chargers in some situations. Had the same issue with my lawn tractor; no charge after 8 hours in the sun. But it works fine for other batteries... go figure. May want to ask someone at your cycle shop about how to use this. And the other responders are right, if your battery is stone dead this thing isn't gonna help you. I found a 6A Stanley charger at Lowe's for $25 to use on the lawn tractor.
1208625
I've had no issues with it working. Again as stated by the others the solar panel has to be in direct sunlight. Make sure the pump has been connected properly & it should work.
1443260
The battery was low in charge, and the charger is not very powerful. Mine charged with the indicator red for about that long when I first used it. I'd give it at least 10 hours to turn green unless the battery gets hot (in which case its bad and needs replacement).
1883885
Mine is green all the time, unless I pull it out of the wall and use it. Then when I plug it back in, it's red for a time and then goes back to green. So I assume red is "charging" and green is "charged."
1638105
I believe the charging circuit monitors the voltage and as the voltage reaches the maximum for that type battery the charging stops. The lights turn from red (Charging) to green when fully charged. It is recommended to take the batteries out once charged and use them. If its not a device I have to have I just take the dead batteries out and charge them and put them back in. They charge quite rapidly. If the battery is bad it won't charge them. I love it, especially the dual usb chargers on the front. I can quick charge my phone with the 2 amp or leave it on all night with the 1 amp. Per your question no, I don't believe it will overcharge a battery. I believe the charging circuit monitors the voltage and as the voltage reaches the maximum for that type battery the charging stops. The lights turn from red (Charging) to green when fully charged. It is recommended to take the batteries out once charged and use them. If its not a device I have to have I just take the dead batteries out and charge them and put them back in. They charge quite rapidly. If the battery is bad it won't charge them. I love it, especially the dual usb chargers on the front. I can quick charge my phone with the 2 amp or leave it on all night with the 1 amp. Per... » Read More I believe the charging circuit monitors the voltage and as the voltage reaches the maximum for that type battery the charging stops. The lights turn from red (Charging) to green when fully charged. It is recommended to take the batteries out once charged and use them. If its not a device I have to have I just take the dead batteries out and charge them and put them back in. They charge quite rapidly. If the battery is bad it won't charge them. I love it, especially the dual usb chargers on the front. I can quick charge my phone with the 2 amp or leave it on all night with the 1 amp. Per your question no, I don't believe it will overcharge a battery. « Show Less