Anself 10A 12V/24V Solar Charge PWM Controller Charging Regulator for Solar Panel Battery Overload Protection

Yes it will charge 2 12 v batterys and it is a good cheap unit that works as not all do.

By John R. on March 1, 2018

You can attach an indicator light to show the charging. We think it is optional.

By Rosalie S. on September 15, 2017

You can charge two 12 v batteries connecting both baterry on battery post.

By Semi on March 2, 2018

The unit I got does use 0.05A constantly for the lights even overnight doing some "draining" of the battery. If the battery/system is a small one like 20AH battery or less (and 30 watt solar panels) that may seem like a drain on it, yet if you're charging bigger batteries like 50+AH with 100+ watt panels it shouldn't … see more The unit I got does use 0.05A constantly for the lights even overnight doing some "draining" of the battery. If the battery/system is a small one like 20AH battery or less (and 30 watt solar panels) that may seem like a drain on it, yet if you're charging bigger batteries like 50+AH with 100+ watt panels it shouldn't be that significant. The load light will stay on allowing power to go to the "load" connection until the battery voltage drops to 10.5V, then the controller cuts that off (to stop further drain on the battery which can damage it). Since your question was cut off (I know they limit the length), feel free to add comments to add details or other questions you have. see less

By Thomas H. Lawler on June 25, 2017

I've hooked up a drained battery to my truck and had a 50 amp breaker pop (showing how much power can go between batteries), so there's no way I'd use something rated for only 10 amp between such (unless you have some way of being sure you'll never have over 10 amps current flow thru it).

By Thomas H. Lawler on June 13, 2017

I wouldn’t buy this item again

By Mike Z on July 22, 2018

you can purchase a 10 amp or 20 amp model either will work.

By Clark Howle on June 29, 2018

I did and didn't see an over charge condition. You should see the battery charge to about 12.2 - 12.6v when fully charged. When the controller is charging you should see about 12.5 - 13.5v. I have been using this one for about 1 year and it works great for me. The only thing I have found is that I don't get is... it do… see more I did and didn't see an over charge condition. You should see the battery charge to about 12.2 - 12.6v when fully charged. When the controller is charging you should see about 12.5 - 13.5v. I have been using this one for about 1 year and it works great for me. The only thing I have found is that I don't get is... it doesn't show all bars being charge but I thought it is because I'm using it with a 5w solar panel and not enough sun hours last winter. see less

By David on May 14, 2018

Ok, so what is the voltage of the panels you have? You cannot test inline voltage in this case. You can test the battery voltage separately, but NOT the entire system through this box. You have to test the voltage on the Light Bulb side WITH putting your test instruments in circuit between the bulb and the unit connec… see more Ok, so what is the voltage of the panels you have? You cannot test inline voltage in this case. You can test the battery voltage separately, but NOT the entire system through this box. You have to test the voltage on the Light Bulb side WITH putting your test instruments in circuit between the bulb and the unit connection on the Red side to test the DRAW of the light bulb. You can test the voltage from your panels if it is a 12V panel then the out put should be 12-18V which is the normal voltage from the panels. The concept if you are not familiar is that in order to charge a 12V battery (which at full charge is really 14V), you need to have panels producing from 14-18V in order to CHARGE it... as it require MORE V than what the battery is in order to PUSH in charge. It doesn't matter how many volts are coming out as it only matters that it is within range of 12-18V as the real test is the DEMAND that you are asking for i.e. is the device 12V then it can handle up to 14V and it will NOT draw any more even if feed 20V. Also, realize just in setting up any solar battery situation, you will loose up to 25% in the fluctuation of the voltage from the sun as it is NOT constant Solar power is more like drops of water it drips into the bucket over time and the battery when it is full contains the push power like a bucket to power a device. That is why you need the battery to run a device to stabilize the output and make it consistent enough to run motors etc. So, again, recheck your voltage and configuration on your panels? If you are hooking them up Parallel then you are connecting the + to the + and the - to the - so if you have 2 panels each producing 12V and 4 amps each you would end up with 12V and 8 amps. If you are hooking them up in Series then you ADD them or 12V + 12V = 24V and 4 amps. So do you see the relationship if you up the voltage by adding them together in Parallel you reduce (or half) the amperage... if you simply add the like electrodes together it remains the same 12V and doubles the amps. Go to Images on Google and search for Parallel Batteries and you will see what I am talking about. So, which do you want 24V or 12V as I believe this charge controller knows how to deal with both. This unit is very simple and graphically labeled. I believe that the order of hook up is also important from the gentleman below Thomas H. Lawler. see less

By Leseagle on May 1, 2018

The correct answer is NO. Why? Because Lithium Ion batteries have tighter voltage tolerances and the absence of trickle or float charge at full charge. While lead acid offers some flexibility in terms of voltage cut off, manufacturers of Lithium Ion cells are very strict on the correct setting because Lithium Ion's can… see more The correct answer is NO. Why? Because Lithium Ion batteries have tighter voltage tolerances and the absence of trickle or float charge at full charge. While lead acid offers some flexibility in terms of voltage cut off, manufacturers of Lithium Ion cells are very strict on the correct setting because Lithium Ion's cannot accept overcharging. This charger works great for lead acid batteries. However, I would advise against using this for Lithium Ion's. see less

By Anthony on April 16, 2018