How many amps hrs will it charge
753008
my battery tender worked well for a just 2 months, I used it for charge a yuasa battery 12 volts 12 amp hour
753009
I have 2 side by sides plus i have a generator and a battery to power my Electric fueling point never had any trouble keeping every thing charge the side by side get use once or twice a month no trouble to just go out to the barn and start either one of them always starting
753010
AmpHours (Ah) is a measure of energy. Since this is solar, it has unlimited energy potential, but it can only provide it 15 watts at a time (watts is power and energy is power over time).But I wouldn't expect the full output... that's optimum or about .8 amps.If you could get that much, though, you'd have 8 Ah of energy after 10 hours.
1151372
Just bought the 25', 30amp model for my i3; charges close to max speed at about 7.2kw per hour. Best charger at the price.
350740
Assuming you are charging a 12V (nominal) battery at a charging voltage of approx. 14 volts, from a 15 W panel, your charging rate would be about 1.07A-Hr. (This answer was typed in before reading the other two previous answers -- I totally agree with the answer provided by "D. Kearns". "northern boy's" answer is incorrect.)
637339
Sorry it took me so long to answer the question. I had planned to measure the charging wattage but have been too busy. There is nothing on the battery that states the current required for charging. So I'll estimate that it would be 10 to 20 watts maximum. Insignificant.
1069840
There are numerous manual settings. In auto mode, it charges my 6400 mah battery at about 4 amps and takes 90 minutes. 5 amps is the max manual setting and should charge a 5000 mah battery in 1 hour. You should not charge these batteries at higher than 1C (ex. 4000 mah battery, 4.0 amps max).
1720758
As the others said, it varies.But in my experience, on 200 mA it charges the fastest batteries in about four hours, and my oldest batteries take around 24 hours.
1458349
It will charge multiple batteries so long as there set up for a twelve volt setup I average about 4 amps so one battery or ten the only difference would be how long it takes to charge them.
713983
I don't know for sure. It's not indicated on the unit. I have used it to charge relatively low power devices (about 2 Amps total) with no problem.
1353804
It should, it is rated for 12volts. It might take all day, but should charge it.
221005
Watts are watts per hour. This will recharge 15 watts per hour under ideal conditions. If you are looking just to float charge your batteries- this will do it nicely. If you are looking for this unit to be your only charger- I doubt 15 watts will be enough. If you are expecting this to be your only charger: How may watts are you using per hour and how many watts per hour needed to recharge after a days work? Remember that chances are you will be attempting to recharge durning the night which means no solar power.
1678007
5.1V*.75Amps = 3.825 watts. For a good charging speed you'll want at least 2 amps and 10-12 watts.
335514
i am not sure. but i have a 1.5 20 amp charger on a timer for one hour every day
1781581
The battery in this is a "22 amp/hour", so it should be able to give you 22 amps for 1 hour, 11 amps for 2 hours, etc. If a laptop needs 1 amp at 120V AC (which is the same energy as 10 amps at 12V), it should last 2 hours. You want to keep a battery like this charged 99% of the time (or it loses it's ability to hold a charge), so I hope you actually start with it charged, then recharge it ASAP after using your laptop or such. A solar panel can charge this, but I hope you realize how long it may take to fully charge it. If you have a "60 watt" solar panel set and connect this up, it will take at least 6 hours to charge it (which I get from saying 60 watts/15V charge power=4 amps charge supply and 22 amp battery/4 amps supplied=5.5 hours to fill it up). Other solar panels can be calculated how fast they'll charge in a similar manor to that by just trading out the solar panels watts rating, coming up with a different charge amp supplied, and dividing that into the 22 amp/hour rating. Some solar panels (like ones I got) don't even perform at 1/2 their labeled rating in what I'd call "ideal conditions" (not to mention cloudy conditions), so it may take a lot longer than what I said in reality.
1092318
4 AA 2500mAh batteries in 5 hours so 4 x2000 in 4 hours or 500 ma per hour. Won't make any difference what your charging source is, it only draws 500 ma
779404
That is going to depend on how discharged the batteries get each night. To give you an idea of what to expect, I have a 1600 ah battery bank and 6 panels. They are able to fully charge the batteries each day as long as it is sunny. They produce around 30 amps for about 5 hours mid day in February. With 2 panels I would expect 10 amps. I am in northern Nevada, farther south you should get more sun/power.
1347108
Not certain but be sure your battery can take that rate of charge. Pretty certain mine are maxed at 10 amp for charging. Contact the battery vendor 1st.
1317315
It will depend on ambient temperature of where you park it. My car will charge in 3-4 hrs. depending on how much charge remains in the battery. I plug in at night with the cheapest rate of 9 cents per KW.