Hi, I want to link a 12 volt battery & a 6 volt battery together. I already have a 12v 100AH Deep Cycle, & understand the AH rating needs to be the same, but I want to use them together at under 18 volts. So I would need to have the 12v @ about 11.5 & the 6 volt @ about 5.5. I only need a few 3 second bursts of use. Would the batteries still give a strong current? Or would they perform weaker at those voltages?
Very nice setup with the wires properly sized. Many people dont realize that the cabeling makes a huge difference in how well a system works or not. Proper charging is absolutely dependant on the correct wire size. Well done!
why did you go straight from your battery to your inverter? here is how i wired my shed from solar panel to charge controller from charge controller to battery, from charge controller to inverter. if your not going thru your charge controller from battery then it cant control the battery correct?
Actually NO. Your inverter should be straight from the battery, this is due to inverters (dependant on size) pulling very large amounts of amps. Mine alone can pull near 40Amps and that is only a 300w inverter.
That much amperage would kill the output section of your charge controller, it is only meant for small loads (1-10amp in my case) such as a light or a fan.
Change your set-up to avoid damage to your controller. Only small loads should be run from it, never inverters.
For now I keep a voltmeter handy and just check it now and again, so far the voltage is around 12.8v which is up compared to when the system started so all seems well :)
Eventually plan to buy a meter that can show in real-time power in/out of the system. But such meters are quite pricy. Will be worth getting though when the system grows.
In the short term I may fit a relatively cheap meter than can tell me in real-time the power coming in via the panels in watts :)
Hi I have the same charge controller,does your charge light go out when your battery is fully charged
RoadWarsOnSky1 3 months ago
@RoadWarsOnSky1
No, this charge controller (which we have since replaced) used to simply sit a 2/3 bars on the battery chart at all times.
hippyraverocker 2 months ago
@hippyraverocker
No I dont mean the battery lights, I mean the green charge light.Mine flickers and goes out.does yours do that?
RoadWarsOnSky1 2 months ago
@RoadWarsOnSky1
Ah, yes I believe that mine does this too if the battery is left with zero load on it.
hippyraverocker 2 months ago
What happens when the battery is full? Do you have to dump current somewhere in the system?
chengdogu 3 months ago
@TorchwoodElectrics
Hi Torchwood, it goes down about 5ft.
hippyraverocker 11 months ago
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Hi, I want to link a 12 volt battery & a 6 volt battery together. I already have a 12v 100AH Deep Cycle, & understand the AH rating needs to be the same, but I want to use them together at under 18 volts. So I would need to have the 12v @ about 11.5 & the 6 volt @ about 5.5. I only need a few 3 second bursts of use. Would the batteries still give a strong current? Or would they perform weaker at those voltages?
ooKRE8Roo 1 year ago
how good is that charge controller for the price
rccarmadben 1 year ago
@rccarmadben
For the price it works perfectly fine. It does not have the same efficiency as an MPPT controller but is fine for a starter system.
hippyraverocker 1 year ago
@hippyraverocker thanks
rccarmadben 1 year ago
Very nice setup with the wires properly sized. Many people dont realize that the cabeling makes a huge difference in how well a system works or not. Proper charging is absolutely dependant on the correct wire size. Well done!
docchocobo 1 year ago
Nice one man.
Av always wanted to do this but, i ve been asking myself weather it can work.
Now, Am looking forward to setting one up ASAP.
lazarusmure 1 year ago
@lazarusmure
Thanks for the comment, check out my other videos as the shed has been upgraded since this video was made ;)
If you have any questions feel free to drop me a line.
hippyraverocker 1 year ago
Great job looks good. I like that it is nice and neet and propper wire sizing.
CHEERS
OBXSOLWIND 2 years ago
ok thanks for clearing that up for me, my charge controller is a 30 amp, so i guess my setup is ok then right?
crashguy711 2 years ago
Well, it is O-K so long as your inverter does not pull more than 30 amps.
But you really should have it connected direct to the battery. Much safer/less likely to cause issues for you in future.
hippyraverocker 2 years ago
why did you go straight from your battery to your inverter? here is how i wired my shed from solar panel to charge controller from charge controller to battery, from charge controller to inverter. if your not going thru your charge controller from battery then it cant control the battery correct?
crashguy711 2 years ago
@crashguy711
Actually NO. Your inverter should be straight from the battery, this is due to inverters (dependant on size) pulling very large amounts of amps. Mine alone can pull near 40Amps and that is only a 300w inverter.
That much amperage would kill the output section of your charge controller, it is only meant for small loads (1-10amp in my case) such as a light or a fan.
Change your set-up to avoid damage to your controller. Only small loads should be run from it, never inverters.
hippyraverocker 2 years ago
very nice wiring, nice to see you are using the correct size wires.
VWRabbitdiesel 2 years ago
Thanks. It's a little over-kill at the moment as the cables are capable of 70-80Amps quite easily.
The panel only gives 1Amp, and the inverter uses no more than 40Amps...but it's is mainly for future proofing reasons :)
hippyraverocker 2 years ago
Nice wiring work. Ready for expansion.
Get a volt meter on that battery.
pgm98387 2 years ago
For now I keep a voltmeter handy and just check it now and again, so far the voltage is around 12.8v which is up compared to when the system started so all seems well :)
Eventually plan to buy a meter that can show in real-time power in/out of the system. But such meters are quite pricy. Will be worth getting though when the system grows.
In the short term I may fit a relatively cheap meter than can tell me in real-time the power coming in via the panels in watts :)
hippyraverocker 2 years ago
All inverters are essentially silent, apart from when their fans run if they get hot.
E.g. my 300w inverter is completely silent, until I start to pull about 200w and then the fan comes on to keep things cool.
hippyraverocker 2 years ago
hi, you can suggest some silent inverter?
sx1mania 2 years ago