Charge Controller

[publin]

Hi,
I'd like to clarify something re Charge Controller specs.


TS-MPPT-30 TS-MPPT-45 TS-MPPT-60

[Sunking]

So what is your question?

All you show is a 30, 45 and 60 amp controller.

[publin]

Sorry ! missed the main bit !!

TS-MPPT-30 TS-MPPT-45 TS-MPPT-60

12 Volt 400 Watts 600 Watts 800 Watts
24 Volt 800 Watts 1200 Watts 1600 Watts
48 Volt 1600 Watts 2400 Watts 3200 Watts

Would I be right in saying that the 12/24/48 Volt refers to the battery bank ?

If so I'm guessing that this setup would be totaly off..

the 960 watts on the roof, 200 watts on the ground, & 6 Trojan T-105's for the 12 battery bank

I questioned the setup and was told "The controller is at a higher voltage"

[Sunking]

Sorry ! missed the main bit !!

TS-MPPT-30 TS-MPPT-45 TS-MPPT-60

12 Volt 400 Watts 600 Watts 800 Watts
24 Volt 800 Watts 1200 Watts 1600 Watts
48 Volt 1600 Watts 2400 Watts 3200 Watts

Would I be right in saying that the 12/24/48 Volt refers to the battery bank ?

If so I'm guessing that this setup would be totaly off..

the 960 watts on the roof, 200 watts on the ground, & 6 Trojan T-105's for the 12 battery bank

I questioned the setup and was told "The controller is at a higher voltage"

Easy Peazy stuff.

MPPT Output Current = Panel Wattage / Battery Voltage.

So if you use a 60 amp controller, then you know

800 watts @ 12 volt Battery
1600 watts @ 24 volt Battery
3200 watts @ 48 volt Battery.

We can also say PANEL WATTAGE = Controller Current x Battery Voltage

Simple grade school algebra

the 960 watts on the roof, 200 watts on the ground, & 6 Trojan T-105's for the 12 battery bank

OK this makes no sense. 6 batteries is not 12 batteries. If you mean you intend to use 6 6-Volt Trojans to make a 12 volt 2S3P 675 AH battery battery is just plain ignorant. If you are going to have 1160 watts of panels, the minimum battery voltage is 24 volts, and even better 48 volts. At 24 volts requires a 50 amp controller, and 25 amps at 48 volt battery. If you run 12 volts will require you to use 2 very expensive 50 amp controllers. That would just be foolish

Lastly never ever parallel batteries. With 1160 watts of panels requires a battery of

24 volts minimum = 400 AH up to 600 AH
48 volts minimum is 200 AH up to 300 AH

If you want to use the Trojan T-105's you need 8 of them wired in series to make 48 volts @ 225 AH. Hell of a lot less expensive than screwing yourself running 12 volts with 6 batteries and two very expensive 50 amp controllers. Get yourself a 30 Amp MPPT controller, and 8 trojan batteries set up for 48 volts. FORGET 12 VOLTS. Get out of that 12 volt toy box you are stuck in.

Or if you want to spend a lot of money use a 24 volt 500 AH battery with a 50 amp controller. Use something like 4 Trojan L16H batteries.

[publin]

This install has already happened. (Not mine, found the info on a FB page) they are using the TS-MPPT-60 charge Controller. And have a 12v battery bank. I fully hear you re the 12v situation.

but would you this this setup is a danger ? The guy who's doing these is a solar installer....

[Mike90250]

Trying to power more than 1Kw via 12V bank is asking for trouble, pro or not. While the pro is there, and is instructing How to Use, it's likely a fairly safe rig. After the pro leaves - - - - (let me add this light, and some more wire over to here, and ,,,,,,,)

[Sunking]

but would you this this setup is a danger ? The guy who's doing these is a solar installer....

Anybody can be a Solar Installer. Very few are qualified and this one is a idiot stuck inside a 12 volt box.

As for safety, depends on who you ask. IMHO 12 volt systems should be limited to 500 watts (40 amp) on both panels and inverter. Equipment Manufactures and the Industry say 1000 watts (80 amps).

The big mistake this joker did was use 3-parallel battery strings, and over charged his customer with a piss-poor design. He could have done 24 or 48 volt system for less money and would be safe and last much longer. When you parallel batteries you cut cycle life in half. So now his poor ignorant customer has to replace batteries more frequently. Great for the Installer and battery company as they have a large flock of pigeons to pluck.

[ButchDeal]

Anybody can be a Solar Installer. Very few are qualified and this one is a idiot stuck inside a 12 volt box.

Schrodinger's (idiot) Installer