Charging two batteries in Parallel (and Load) with one Solar Charge Controller
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- Опубликовано: 21 окт 2024
- This updated follow-up video on the subject of "Charging two batteries in Parallel with one Solar Charge Controller", now includes the scenario of adding a Load to the batteries to power something like an Inverter.
In this video we will demonstrated how to connect the Battery Outputs from a Solar Charge Controller to two batteries and how to connect them in Parallel. We also cover a question asked by many, which is how to connect a load to batteries connected in Parallel.
Ensure you use two of the same batteries to ensure optimum charging. By connecting in Parallel you effectively boost the current while keeping the same voltage. E.g. If we have two 12V 125 Ah batteries, connecting the batteries in Parallel will result in a total of 12V and 250 Ah which can be very useful when connecting to an Inverter to power electrical appliances.
If you have any questions, feel free to ask in the comments section below.
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handyman-savag...
Thanks for watching, see you Savages on the next one
exactly what I needed to know and explained so simply !! thank you - Liked and subscribed
Thanks, appreciate the feedback
Does it make any difference if you connect the charger and load to the same terminals, apart from the physical nature of having three connectors on one terminal?
Not at all, in fact that's how I have it setup myself. I use the multi-battery clamps to connect the battery cables in Parallel, Charger cables and Load cables without any issue on the same terminals
Thanks for the video. I have 4 batteries for an electric motor pontoon and was hoping to have two 50 watt solar panels (one panel per 2 batteries). I have two questions 1: Can I leave the load connected while parallel charging? and 2: Currently the system is charged by a Minn Kota 4 x 10a battery charger so each of the batteries are hooked up separately from the charger, if I switched to solar would I need to also switch the load hook up as well? Thanks for any guidance, Andy K
Hi there. 1) Yes you can charge and run a load at the same time. My solar controller (depends on the type) will do a great job of getting more juice (Bulk charge) out of the panels while charging and running a load on a daily basis, only stopping the load to let the battery fully charge using an automated switch (check out my video on Solar Powered Doge Mining). 2) Not entirely sure, but aim for a Solar controller which goes beyond the max possible capacity and it should be fine, but again it depends on the config.
can one 240V solar plate sufficiently charge two 200A batteries?
a 240W Panel can charge 2x 200 amp batteries, but it's all down to the Load. If you have a load which is power hungry you will find that the batteries run out faster than the Solar Panel can charge them.
If I have a battery that is generally used separately from my solar setup is there a way to easily add the separate battery to get it charged up?
Funnily enough I am in the process of doing something very similar. I have one battery bank which is charged by Solar, but I end up with a surplus of solar (as the battery isn't used much), so I am looking into charging a second battery bank with the excess solar. But the essential ingredient is a dual battery solar controller (i think).... Although this remains to be tested, video coming soon.
Would an inverter get connected to the load sides or the charge controller sides?
Good question and the answer is it depends entirely on your application. Connecting the Inverter to the Load Output on the Charge Controller does offer more protection such as Low Voltage Disconnect but depending on the rating of the Charge Controller you may not be able to power big electrical items. Whereas connecting the Inverter directly to the battery gives you much more power output. If the Inverter is left connected to the battery 24/7 then your battery can drain, but I use things like timer switches between the Battery and the Inverter to decide the power on schedule for the Inverter.
For the final step the load side I am looking to connect an inverter to this And the inverter has outlet to plug in ac device. For this would I connect the negative wire from inverter to one of the batteries and the positive side from inverter to positive terminal on one of the batteries. Does it matter which battery I connect the inverter to. I have 2 35amh batteries in parallel
Hi, as per the video. For your inverter, simply connect positive inverter load to Positive of battery 1 and negative inverter load to Negative of battery 2. I don't show it in the video, but the load lines go via a timer and then direct to an Inverter, so almost similar to your scenario.
My charge controller has + and - ports for Load so I wired from positive port on charge controller directly to positive port on the inverter and negative port on controller to negative port on inverter. I assume this is ok. These are both 12v 35 amp ht batteries. I tested them with multi meter and am showing just under 10v. So looks like some charging needs to take place. The inverter has an outlet on the back and I plugged in a light fixture. When I flipped the switch on the inverter to “ON” I get a beeping sound and light from fixture does not light up. I assume this is because the batteries are under charged
@@michaeldevaney3307 Inverters are recommended for connection to batteries directly (due to the controller load output rating (in amps) usually being limited and inverters tend to use a lot of juice when connected to high powered mains devices. I tend to use the Controller Load for lightweight projects such as USB etc and battery to inverters for high-powered mains devices
Ok so I will wire + from inverter to + on battery 1 and - from inverter to - on battery 2. Then plug in ac device into inverter to operate.
I understand wiring the inverter directly to The batteries 24/7 tends to drain the batteries. This is what my intention is. In my situation I would be leaving the connections to the battery intact for many months since this is a secondary residence. Would it make sense to leave the connections to the battery intact but disconnect the connections to the inverter for the long term periods when I will not be applying any load to the batteries