Will this also charge a car battery? Optima Red Top specifically, thanks.
1494727
it will charge a car battery. however, an optima is a gel-cell battery, if i remember correctly, and they require a charger that will charge at very specific voltages. that said, i kept a yellow top optima alive with this charger for six months after it was clearly showing signs of giving up the ghost. that particular battery was at least ten years old.
1494728
Sure but not fast. Better than a float charger but not like a 10 amp or larger unit. Maybe overnight.
1494729
This charger is meant to be a trickle charger for lead acid batteries only but does a great job as a trickle charger
1494730
Waiting to hear back from Yuasa. I have 2 of these chargers. I recently changed one application from a lead-acid to an Absorbtion Glass Mat (AGM) battery type, which is the same generic type as your Optima. So it just occurred to me that I should get the official answer on this as well. For what its worth, I had a conversation this morning with a tech at Batteries Plus and was told this type of charger will work on AGM as well as Lead-Acid. From personal experience, because this is a trickle charger, it may take a number of days to fully charge a discharged large capacity battery such as yours. Waiting to hear back from Yuasa. I have 2 of these chargers. I recently changed one application from a lead-acid to an Absorbtion Glass Mat (AGM) battery type, which is the same generic type as your Optima. So it just occurred to me that I should get the official answer on this as well. For what its worth, I had a conversation this morning with a tech at Batteries Plus and was told this type of charger will work on AGM as well as Lead-Acid. From personal experience, because this is a trickle charger, it may take a number of days to fully charge a discharged large capacity battery such as... » Read More Waiting to hear back from Yuasa. I have 2 of these chargers. I recently changed one application from a lead-acid to an Absorbtion Glass Mat (AGM) battery type, which is the same generic type as your Optima. So it just occurred to me that I should get the official answer on this as well. For what its worth, I had a conversation this morning with a tech at Batteries Plus and was told this type of charger will work on AGM as well as Lead-Acid. From personal experience, because this is a trickle charger, it may take a number of days to fully charge a discharged large capacity battery such as yours. « Show Less
1494731
Yes it will charge. However it would take a while. This unit is a maintainer. It's output is very low. If you are looking for a charger , I would look at something different.
1494732
It will charge regular car batteries, but I am not familiar with Optima Red Top.
150748
If your car battery is still good (able to take a charge), It will charge it. But, you will need to make your own cables and terminals to connect to your car battery, as I don't think these come with wires or cables.
737036
No, not in my opinion. This unit will recondition and charge a very low AGM battery while most charger won't. Optima also offers a smaller trickle unit that will insure your AGM stays healthy assuming your AGM is in a vehicle that sits more than it's driven - or boat...
1337394
no as long as its a 12v battery it will charge it, the bigger it is the longer it will take.
529940
Oh you mean 12v for the car. No it doesn't. I just got an adapter from Radio Shack and I can charge on the go...
1408756
Yes. But if you are asking if it will charge your devices without the motor running, that would depend on whether or not your car's power outlet is wired directly to the battery or to the ignition circuit. The latter would require the key to be in the "on" position.
830120
To my knowledge it is "optimized" for the specs of optima battaries since you have to choose which optima you are using but it does have a simple fast charge option which just wants to know if you are charging starter battaries, marine, auto, deep etc... So it should work for all.. I love mine and have had no problems. Hope this helps.
770533
This can charge your battery only. I have one and just swap out the battery when necessary.
1988783
Yes. I use it to charge/maintain a car battery everyday. It might recharge a battery but it would take a long time if it was discharged.
1729684
Yes it will charge the battery in question, it will also charge up to 6 cell battery. You shouldn't need any other connectors as it comes with a wide verity.
1018944
I believe that it will. It will fully charge and maintain a motorcycle battery from dead to fully charged and it will maintain a car battery if it has a bit of a charge. There is more information in the owner's manual which I don't have with me at the moment. I use mine for my motorcycle and absolutely love it. I have a regular car charger, but this tends the battery and is much more convenient.
990233
It has a selector to charge Optima batteries or other batteries. I haven't charged anything besides Optima, but I'm not sure it's worth the extra money either way. I bought mine due to the claim that it can restore Optima's in not-so-optimal condition, but it failed to restore mine. Therefore I don't recommend one because they are so expensive.
72406
Yes. But be careful, once the charge is complete (red light turns on) make sure to unplug it or it will overcharge and ruin the battery.
2219682
If you look at specs on this charger it is fully automatic, amps are limited, so yes if the battery can be charged this one will do the job. If the battery has a dead cell then nothing works.
2144636
Is the battery attached to the car still? I had a simular issue when trying to charge the battery while still connected to the vehicle terminals. Also non optima batteries have different charging instructions listed in the book. Did you look at them or just the default instructions?
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.
690398
I thought that it would charge up but no sadly it only works when connected to either the car's battery or into the cigarette lighter/power source.