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1 or 2
Aug 27, 2018 19:52:34 GMT
Post by den777mix on Aug 27, 2018 19:52:34 GMT
hi I have a 2 bank battery system 2 6v 400ah lifeline batteries in series each bank can I charge both banks using the rover series 40A cc if so pleas send diagram or would it be better to charge each bank separately using 2 rover 20A cc I have 4 100w solar panel
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1 or 2
Aug 27, 2018 20:09:07 GMT
Post by tattoo on Aug 27, 2018 20:09:07 GMT
hi I have a 2 bank battery system 2 6v 400ah lifeline batteries in series each bank can I charge both banks using the rover series 40A cc if so pleas send diagram or would it be better to charge each bank separately using 2 rover 20A cc I have 4 100w solar panel Do all 4 panels together, all 4 batteries together with your one 40a CC..... That's what I started with and it worked great...
There is no need for two separate battery banks...
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1 or 2
Aug 27, 2018 21:06:16 GMT
Post by den777mix on Aug 27, 2018 21:06:16 GMT
I can put the 4 panels together, and the battery come together at a battery selector switch they share a ground
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1 or 2
Aug 27, 2018 21:18:14 GMT
Post by tattoo on Aug 27, 2018 21:18:14 GMT
I can put the 4 panels together, and the battery come together at a battery selector switch they share a ground Yes you can put the panels together... I think that is what your asking..... If the batteries come together why do you have two banks??? If they come out at one point that's one bank not two... Your question isn't making sense....
Maybe someone else can understand what your asking to do....
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1 or 2
Aug 27, 2018 21:34:37 GMT
Post by den777mix on Aug 27, 2018 21:34:37 GMT
I can isolate the banks, run the boat a day or two on 1 bank and then the other or I can run the boat on both banks together. My question is: Can I charge both banks off of the selector switch together or do I have to the batteries and charge each bank separately?
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1 or 2
Aug 27, 2018 21:37:09 GMT
Post by den777mix on Aug 27, 2018 21:37:09 GMT
basically I'm asking if I am able to split what comes out of the control charger to send charge to my two separate banks.
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1 or 2
Aug 27, 2018 21:43:43 GMT
Post by Admin on Aug 27, 2018 21:43:43 GMT
basically I'm asking if I am able to split what comes out of the control charger to send charge to my two separate banks. **Making an edit Hello, We don't see a problem with connecting 4 x 100W panels to 40A charge controller and running the line down to a battery switch that allows you to select battery 1 OR battery 2. Upon further insight, connecting the two batteries at the same time (if the selector has a Battery 1 + Battery 2 Option), with different voltages, could potentially damage your batteries because first the batteries will equalize in voltage. This basically means that the battery with higher capacity will charge the battery with the lower capacity. In the process, depending on their potential differences, the resulting current could be higher than rated for safe battery charging thus damaging your batteries. Apologies for the premature response. The assumption was that battery 1 and battery 2 would be the same when you combine them (parallel) to form a bigger bank. -Renogy Team |
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Post by bupkis on Aug 28, 2018 0:30:22 GMT
why would charge a full bank that is connected to a discharged bank? Charge the discharged bank.
use them together, charge em together, use em separately, charge em separately.
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1 or 2
Aug 28, 2018 0:35:39 GMT
Post by tattoo on Aug 28, 2018 0:35:39 GMT
basically I'm asking if I am able to split what comes out of the control charger to send charge to my two separate banks. Why would you want to? What is the advantage? |
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1 or 2
Aug 28, 2018 0:45:47 GMT
Post by tattoo on Aug 28, 2018 0:45:47 GMT
basically I'm asking if I am able to split what comes out of the control charger to send charge to my two separate banks. OK another way of looking at it....... If you have two wires coming out of the one CC to each battery banks as you call it to charge them..... I don't think you can do that because each bank will have different voltage.... Now one at a time that should be ok....
And Stop calling it split your not splitting anything.... There are two separate wires... |
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1 or 2
Aug 29, 2018 11:19:56 GMT
Post by den777mix on Aug 29, 2018 11:19:56 GMT
well if in the ocean and a battery goes bad I can charge the good bank that why I ask 1 or 2 cc and split 400w to 200w for each bank
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1 or 2
Aug 29, 2018 12:26:43 GMT
Post by tattoo on Aug 29, 2018 12:26:43 GMT
well if in the ocean and a battery goes bad I can charge the good bank that why I ask 1 or 2 cc and split 400w to 200w for each bank Now yes you can do that for sure... |
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1 or 2
Aug 29, 2018 12:48:10 GMT
Post by bupkis on Aug 29, 2018 12:48:10 GMT
I'd charge the bank in use with all 400w, ~20A of charge in good sun ~5% of capacity. How much do you use?
The idle bank should stay charged with little self discharge. 200w on a full battery is 200w wasted.
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1 or 2
Aug 29, 2018 21:50:39 GMT
Post by den777mix on Aug 29, 2018 21:50:39 GMT
yes I agree that wasting 200w wind I can make the selector switch charge bank 1 or 2 or both
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1 or 2
Aug 29, 2018 21:55:53 GMT
Post by tattoo on Aug 29, 2018 21:55:53 GMT
yes I agree that wasting 200w wind I can make the selector switch charge bank 1 or 2 or both Now your thinking, That's a great idea... |
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