Anyone think this could help charge a 12 volt battery 10.5 amp I'm looking for a way to charge as I ride my bicycle. I would ground it to the neg.
1241904
You can do this but it will take a long time to fully charge. With only one generator, you will get about 0.1 amp into your 12V battery.
1241905
It only puts out 6 watts at 12 volts P=E x I therefore..... 6Watts = 12Volts x .5Amps Get it? .5 Amps output.
1241906
yes, it grounds as you bolt it on. i used mine to charge a 12v battery that ran my pump for my pond.
1241907
I'm not positive but I believe the one I bought put out AC voltage. I don't think that would work on charging a battery.
1772836
I probably wouldn't if it were mine. Some electronics and batteries may be damaged by a power source that provides too much current (Your charger needs .3 amps and this supply puts out 1 amp). The device I am using with my power supply is a cheapy unit that is inexpensive, so no harm if it gets fried. I am also using my power supply to take the place of batteries, not for charging batteries like you're wanting to do. My recommendation is to pass on this as it might cause damage. Good luck :-)
1147408
Hello Jessica, this model only do crank assist at 12 V. and it do at 400 amps. Hope you find this info usefull (it´s a very good battery charger)
1988787
I'm using it for that purpose on my old Subaru. It comes with a small charge regulator to properly charge 12 volt batteries.
1665889
Yup! I use it on my 12 Volt boat batteries and my 12 Volt car batteries. Like it because it shuts itself off when reaching full charge. My older chargers of a different make could overcharge a battery if left on too long. It is a tad slower than some chargers, but I believe a slow charge is better than a too fast one. I disconnect it when I notice a full charge is reached and in a few months will recharge the battery if the battery is left unused. Hope this helps.
1388661
It might, depending upon battery size and how discharged it is - if it is totally discharged, nothing may bring it back, but if it is just really low, you might try to pre-charge it with a regular charger and then maintan it ( which is what the Tender is for) wihe the Battery Tender.Remember, it is only 1.25 amp and I would think you might need at least 2 amps for charging very weak batteries
862511
It is a very good charger, i us it on only one 12v battery currently, but i see no reason why it would not maintain the charge on your batteries as long as they are hooked as a 12v system, i am sure it would be more effective it you did one at a time and cycled them through
1298231
I used a #10 stranded copper wire THHN is good for 30 amps. I ran a red and black from the charge controller out to the battery terminals. The charger will keep a constant and monitoring voltage for your 12 volt battery. You may want to add a Wattsup to give more information and condition of the process.
1247460
It's probably not your charger... My daughter used hers for 5 minutes and it never charged again. The whole bike is not what it was supposed to be..
1896806
Theoretically you could rig a way to do this but not sure what this buys you. with a 36 volt 12 ah battery it would take a long time at 10 watts to charge up your battery. best to bike home. ken
150750
This would probably work fine to charge your car battery, but it would be slow. This is more of a trickle charger than a fast battery charger. There are actually some better choices out there for car batteries. I have a classic car, and I keep a Battery Tender 021-0123 Battery Tender Junior 12V Battery Charger attached to that, and it keeps the battery totally charged. If you want a really fast charge (which is harder on your battery, it will reduce the life of the battery) you could use something like the Schumacher SE-5212A 2/10/50 Amp Automatic Handheld Battery Charger.
1861103
This is not the item you want. This item is used to go from 120 volts AC to 12 volts DC. It is not to charge up battery, Hope this helps
698366
yeah sure, it is a trickle charger so the charge rate is a little slower that an 12v alternator or generator. so the principle is the same. there might be one with a little more of a charging rate than for a motorcycle battery. (6 volts versus a 12volt standard battery).
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.
1456453
I would say yes to deep cycle battery charging,no start mode.it won't charge a completely dead battery,it has to have at least 7 volts I think.i thought that was odd but that's the way it is.
1891446
I just looked at my charger, its 12VDC / 2 amp, same output as a car cigarette lighter. It is a Positive TIP (center) and Negative Outside jack. As long as you get an adaptor to fit unit and ensure Positive TIP, it will work. As far Amps, a car battery has as much as 500 amps, but don't worry, your box will only draw the 2 or less amps, only what it needs of the available 500 amps.
1879137
Have no idea. It is 12 volt but I use it for a battery operated lawn mower. It has to be recharged after each mowing using a plug in charger that came with my mower. I would think that you needed something bigger with more amps. Check your manual .