Post by mattb on Apr 19, 2015 9:22:48 GMT -8
First Question.
I am getting an analog amp meter for my system. I plan on connecting from the controller, through a fuse, then the meter, and to the battery. I this the best place to connect that?
Second. Battery usage. Part one
I'll try to make this as short as I can but I have to include the story. I was working maintenance for a company awhile back and they had a front end loader with a 24v system. The primary fuel pump went bad and as a quick fix the previous mechanic took a 12v electric fuel pump and wired it by putting the posistive wire to the left battery positive with an on/off swith and the negative wire to the negative of the same battery. It gave the pump 12v alright enough, but that one battery would not recharge. I swapped batteries and got the same result. I had a heck of a time persuading the owner to by a 24v pump because although I understood what was happening I couldn't explain why. I only knew this set up was interfering with the way batteries charge.
I can imagine some one doing this with a 24v solar array with two 12s in series and wanting to tap 12 volts. So I thought it would be good reading for every one if you could explain why this is a bad idea.
Part two.
when wiring batteries in parallel I've seen it recommended that one should hook up all connections for charge source and loads to be hooked up to one battery and the other batteries ties to that one. However, the other day I was perusing utube and ran across a video that recommended that you hook up the negative side of the loads to the negative of the last battery in the bank. He said that evened out the draw for the batteries. Being every thing is in parallel I don't see how this matters. Could you please elaborate?
By the way, my set up is a 100w poly, 30amp controller kit, set up for portable and gonna get a little bigger.. Took a long time to choose one but now that I've tried Renogy I'll probably not even look at another brand. Quality, bang for the buck, and well supported. I love it.
I am getting an analog amp meter for my system. I plan on connecting from the controller, through a fuse, then the meter, and to the battery. I this the best place to connect that?
Second. Battery usage. Part one
I'll try to make this as short as I can but I have to include the story. I was working maintenance for a company awhile back and they had a front end loader with a 24v system. The primary fuel pump went bad and as a quick fix the previous mechanic took a 12v electric fuel pump and wired it by putting the posistive wire to the left battery positive with an on/off swith and the negative wire to the negative of the same battery. It gave the pump 12v alright enough, but that one battery would not recharge. I swapped batteries and got the same result. I had a heck of a time persuading the owner to by a 24v pump because although I understood what was happening I couldn't explain why. I only knew this set up was interfering with the way batteries charge.
I can imagine some one doing this with a 24v solar array with two 12s in series and wanting to tap 12 volts. So I thought it would be good reading for every one if you could explain why this is a bad idea.
Part two.
when wiring batteries in parallel I've seen it recommended that one should hook up all connections for charge source and loads to be hooked up to one battery and the other batteries ties to that one. However, the other day I was perusing utube and ran across a video that recommended that you hook up the negative side of the loads to the negative of the last battery in the bank. He said that evened out the draw for the batteries. Being every thing is in parallel I don't see how this matters. Could you please elaborate?
By the way, my set up is a 100w poly, 30amp controller kit, set up for portable and gonna get a little bigger.. Took a long time to choose one but now that I've tried Renogy I'll probably not even look at another brand. Quality, bang for the buck, and well supported. I love it.