fisher Posted May 26, 2011 Report Share Posted May 26, 2011 (edited) They were on sale for $9.99, so I picked up 2 of them figuring they may come in handy for my boat...but the box says it will maintain a battery. Does that mean they will not charge up a battery? Would it be better if I hooked them up in parallel or series if I wanted to charge up my batteries - or would doing one or the other cause damage? Anyone have experience with one of these? Thanks! Edited May 26, 2011 by fisher Link to comment Share on other sites More sharing options...
Fish4Eyes Posted May 26, 2011 Report Share Posted May 26, 2011 It will charge it up, but it will take forever. See if it has an amps rating. That will give you an idea of how effective it is. Link to comment Share on other sites More sharing options...
skidoosafari Posted May 26, 2011 Report Share Posted May 26, 2011 They were on sale for $9.99, so I picked up 2 of them figuring they may come in handy for my boat...but the box says it will maintain a battery. Does that mean they will not charge up a battery? Would it be better if I hooked them up in parallel or series if I wanted to charge up my batteries - or would doing one or the other cause damage? Anyone have experience with one of these? Thanks! Hey fisher i bought two of them on the weekend as well. Was going to post the exact same question just haven't got round to it yet. I did use one of them on the trolling battery this passed weekend and seem to do the job. That being said i did put the battery on the charger( electric) at night . Link to comment Share on other sites More sharing options...
danbouck Posted May 26, 2011 Report Share Posted May 26, 2011 They will keep it topped up but are useless for charging from dead unless you can wait a few weeks Link to comment Share on other sites More sharing options...
fisher Posted May 26, 2011 Author Report Share Posted May 26, 2011 They will keep it topped up but are useless for charging from dead unless you can wait a few weeks Fair enough..I just wanted to see if they would "top" them up after a day using the battery for trolling, radio, etc.... Would connecting two of them to the one battery help any - and if so, do I connect them directly or in series? Someone asked about the amperage - It says 125 mAh on them. Link to comment Share on other sites More sharing options...
Bigfisherman Posted May 26, 2011 Report Share Posted May 26, 2011 Your looking at 100ma in the best conditions. So for example a 50amp battery will take 5 days @ 10hrs/day of sunshine....... Link to comment Share on other sites More sharing options...
Terry Posted May 26, 2011 Report Share Posted May 26, 2011 seems to me you will get .15 that's point one five amps 2 of them .3 amps not very close to maintaining a battery.... 6 more of them and you will have about 1 amp and you will be talking business that's if I remember my electronic from when I got my amateur radio license Link to comment Share on other sites More sharing options...
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