Hello from Maypearl Texas. Newb to Solar.

[hztd0m]

Wow........"I hope this helps....." Seriously, thats like saying I just found that eating tomatoes will 100% thwart off the chance of getting cancer. I hope this helps...HA HA!!

I understand now why that 295 amp panel was such a deal, its very specific.

This is awesome. Ok, I read that about 12098364190923410 times and here is my shoppping list.

200 Watt Panel
TS-MPPT-45 amp or 60 amp charge controller (see how my bank account feels that day.)
2 Concorde PVX-2240T batteries
1 300 watt inverter
1 2k watt interver

I now have a christmas and birthday list.

All this was a little overwhelming but now that it is broken out to a specific system its much easier to follow. Thank you very much.

[Sunking]

Wow........"I hope this helps....." Seriously, thats like saying I just found that eating tomatoes will 100% thwart off the chance of getting cancer. I hope this helps...HA HA!!

OK you learned to read between the lines and see my sense of humor. Glad I could help.

[FloridaSun]

Wow........"I hope this helps....." Seriously, thats like saying I just found that eating tomatoes will 100% thwart off the chance of getting cancer. I hope this helps...HA HA!!

I understand now why that 295 amp panel was such a deal, its very specific.

This is awesome. Ok, I read that about 12098364190923410 times and here is my shoppping list.

200 Watt Panel
TS-MPPT-45 amp or 60 amp charge controller (see how my bank account feels that day.)
2 Concorde PVX-2240T batteries
1 300 watt inverter
1 2k watt interver

I now have a christmas and birthday list.

All this was a little overwhelming but now that it is broken out to a specific system its much easier to follow. Thank you very much.

You might want to add another item to your list... a charger for those days when the sun dont shine. I have 200AH of battery also and have been looking to buy one. Specifically an IOTA 24 VOLT 25 AMP/IQ4 to run from 120V or generator. Not too expensive at around $200. Is this a wise choice?

[Sunking]

Specifically an IOTA 24 VOLT 25 AMP/IQ4 to run from 120V or generator. Not too expensive at around $200. Is this a wise choice?

IOTA makes a decent charger for the price. I know quite a few amatuer radio operators who use the chargers as power supplies. Which model are you using?

Edit Note:

Duh the DLS-27-25/IQ4. That is the right choice as it offers 3-stage so you can up the voltage for fast charge on a generator. The DLS-27-25 is a fixed Float Charger at 27.2 volts which is what radio operators use, but can take up to 24 hours to recharge and no EQ setting. Not something you want for RE application on a genny.

[FloridaSun]

IOTA makes a decent charger for the price. I know quite a few amatuer radio operators who use the chargers as power supplies. Which model are you using?

Edit Note:

Duh the DLS-27-25/IQ4. That is the right choice as it offers 3-stage so you can up the voltage for fast charge on a generator. The DLS-27-25 is a fixed Float Charger at 27.2 volts which is what radio operators use, but can take up to 24 hours to recharge and no EQ setting. Not something you want for RE application on a genny.

Appreciate your approval. Yup, that's the one, with built in IQ4.

[SunEagle]

Appreciate your approval. Yup, that's the one, with built in IQ4.

What would be the correct amp rating of an IQ4 to charge a a 200ah 12 volt battery system. I was looking at one that is rated 30amps, DSL-30/IQ4 but there are others from 15 amps up to 90amps.

[FloridaSun]

What would be the correct amp rating of an IQ4 to charge a a 200ah 12 volt battery system. I was looking at one that is rated 30amps, DSL-30/IQ4 but there are others from 15 amps up to 90amps.

200Ah bank at C/8 charge would be 25A.

edit: FLA batteries?

[SunEagle]

200Ah bank at C/8 charge would be 25A.

edit: FLA batteries?

I have 4 x UB12500 50ah 12v sealed lead acid batteries. I thought the 25A charger would be correct but did not see an IOTA 12volt charger in that amp rating. The next one was the 30 amp unit. I figured before I go get one I would ask for input. Thanks for the info.

[Sunking]

What would be the correct amp rating of an IQ4 to charge a a 200ah 12 volt battery system. I was looking at one that is rated 30amps, DSL-30/IQ4 but there are others from 15 amps up to 90amps.

Depends if FLA or AGM. If FLA a little more restrictive of C/8 (200 / 8 = 25 amps), even 30 would be OK, down to C/12 or 17 amps, even 15 would be OK. AGM all the way up to 1C or 200 amps and no real lower limit but I would not go lower than C/20 or 10 amps.

[FloridaSun]

I have 4 x UB12500 50ah 12v sealed lead acid batteries. I thought the 25A charger would be correct but did not see an IOTA 12volt charger in that amp rating. The next one was the 30 amp unit. I figured before I go get one I would ask for input. Thanks for the info.

I think the 30A would be fine with SLA batts. Seems I've heard others say they could give/take more of a charge. You might want to get some feedback from the experts here on that. I'm just a piddly DIY guy.

[Sunking]

I have 4 x UB12500 50ah 12v sealed lead acid batteries. I thought the 25A charger would be correct but did not see an IOTA 12volt charger in that amp rating. The next one was the 30 amp unit. I figured before I go get one I would ask for input. Thanks for the info.

Those are AGM batteries. UPG recommends a C/3 rate or 15 amps for that model. But anything from 2 to 20 will work. With 4 of them in parallel would be 8 to 80 amps. Heck you could put all four in series for 48 volt @ 20 amps would be sweat. You got all kinds of options.

[SunEagle]

Those are AGM batteries. UPG recommends a C/3 rate or 15 amps for that model. But anything from 2 to 20 will work. With 4 of them in parallel would be 8 to 80 amps. Heck you could put all four in series for 48 volt @ 20 amps would be sweat. You got all kinds of options.

My plan for the future is to build a system around a 48volt battery system. Working on my funding to go to a Morningstar MPPT CC and a better inverter. Right now I have to stay with the 12volt system but was curious about a charger in case the PV panels don't do the job due to weather issues.

Appreciate the info. Thanks

[hztd0m]

This is really great stuff.

Been doing some more digging. Is there a preferred 200 watt panel (brand)? Will 2 x 100 watt panels do the same job?

[Sunking]

This is really great stuff.

Been doing some more digging. Is there a preferred 200 watt panel (brand)? Will 2 x 100 watt panels do the same job?

200 watt GTI panels are the perfect building block fo ra battery system if you use a quality MPPT controller. One I have used for years is the Kyocera KD215. Yes it is a 215 watt panel, but in real life is a solid 200 watt panel of 54 cells. Koyocera is the best bang for your buck with 20 + years of service.

[bonaire]

Why are the smaller wattage panels better than say a 60-cell 250W+ type of module for that? Aren't they set up in series? Just interested if I ever wanted to add a small sub-system to my existing system for a battery backup "hobby" system.