jamesid29:

Good evening boss. Abeg no vex for the unusual question.
Pls where did u get it prime panels from and what web application and hardware are using for your system monitoring.

Thanks for ur time boss.

Got the prime from justemmanuel you can't miss that moniker within this thread. As to monitoring search for solpiplog in the thread. At the moment I use a combination of solpiplog, node-red, mqtt and emoncms

ceaser:


This does not have PIR sensor, does it?

Not at all sir!

Please experts in the house, is it possible to charge a battery bank with 2 inverters?

I looked at these 2 volts battery that hat have 2 positive and 2 negative terminals and was thinking that for effective charging,a charging source ( inverter or solar can be connected on one set of positive and negative while another charging source is connected on the other positive- negative source.Is it possible or why do they have double positive and negative terminal per battery. Even some 2v 1000ah have 4 sets of positive and negative terminals per battery.

Brand new MorningStar MPPT 60A CC for sale.

Price 235k

Contact - 0 8 0 8 1 1 4 4 4 4 2 or sales@luminanttechsystems.com

omotoda:
Please experts in the house, is it possible to charge a battery bank with 2 inverters?

I looked at these 2 volts battery that hat have 2 positive and 2 negative terminals and was thinking that for effective charging,a charging source ( inverter or solar can be connected on one set of positive and negative while another charging source is connected on the other positive- negative source.Is it possible or why do they have double positive and negative terminal per battery. Even some 2v 1000ah have 4 sets of positive and negative terminals per battery.

You can put more than one charger on a battery so long as the cumulative charging current is within the limits of the battery. A neater way will be to route the chargers to a central busbar and then take a single positive and negative to the battery from the busbar

The multiple terminals on the 2v LA are supposed to be connected together.....my guess is that each terminal represents certain capacity and a combination makes the total capacity but I may be wrong on that. 2v LA people may advice better.

Hello folks, most of the time I now get my battery filled up by noon and I wonder what else folks use their excess power for? Am considering a geyser but does that work in this part of the world? Anyone using it?

ceaser:


It may be less efficient, though yet to compare it with a known brand to confirm that. And if it is, how much of efficiency do you get to give up is what I also can't be sure about. But the 60 amps is definitely 60amps. Except maybe that has changed of recent.

For a quick and less costly acquisition of an MPPT CC that works well for the bucks and almost as good as a number of "premium brands" like Felicity MPPT CC, PowMr is a way to go.

Something that comes close to it is MakeSkyBlue, but that one isuch more expensive than PowMr but I honestly can't really tell much difference in performance of the two after like 2 plus years experience with both brands.

Thank you so much King!

I appreciate you.

Please I need 24v DC meter. Who has can DM me on 08033808419

Congrats on this milestone!

I understand that you want to heat up water with your excess PV as a sort of diversion load?

Since you have a Deye this could be achieved with the secondary AC output? Or else you could attach one of your tasmotas and use it to sense battery SoC or PV state and then switch ON or OFF the load or if too large use it to energise a contactor to switch the load.

These were my first thoughts without any rigor.

ojeysky:
Hello folks, most of the time I now get my battery filled up by noon and I wonder what else folks use their excess power for? Am considering a geyser but does that work in this part of the world? Anyone using it?

NiyiOmoIyunade:
Congrats on this milestone!

I understand that you want to heat up water with your excess PV as a sort of diversion load?

Since you have a Deye this could be achieved with the secondary AC output? Or else you could attach one of your tasmotas and use it to sense battery SoC or PV state and then switch ON or OFF the load or if too large use it to energise a contactor to switch the load.

These were my first thoughts without any rigor.

Right those are the "how to" Deye secondary input or sonoff is what I plan to use, but my question was actually about "what to" i.e what are people utilizing their excess PV on?

abbeymighty:
Please I need 24v DC meter. Who has can DM me on 08033808419

Do you mean a volt meter? I have a digital 24v volt meter that you can pickup if you are in Ado as the cost of sending is not worth the meter

For me cooling it is - ACs, ACs and more ACs during the day.

Already mounted a 300L solar water heater on the roof so hot water needs are covered.

The dream is to be able to run 5 to 6ACs 24/7 if possible - the limiting factor is overnight battery capacity.

ojeysky:


Right those are the "how to" Deye secondary input or sonoff is what I plan to use, but my question was actually about "what to" i.e what are people utilizing their excess PV on?

NiyiOmoIyunade:
For me cooling it is - ACs, ACs and more ACs during the day.

Already mounted a 300L solar water heater on the roof so hot water needs are covered.

The dream is to be able to run 5 to 6ACs 24/7 if possible - the limiting factor is overnight battery capacity.

I guess I will continue with my AC path then. It just feels like a waste especially when no one is around.

ojeysky:
A few R3 Basic DIY 6.5k for unit price and 6k for multiple. Can flash with tasmota before shipping for those interested

Still available

ojeysky:


Got the prime from justemmanuel you can't miss that moniker within this thread. As to monitoring search for solpiplog in the thread. At the moment I use a combination of solpiplog, node-red, mqtt and emoncms

Thank you very much

ojeysky:


I guess I will continue with my AC path then. It just feels like a waste especially when no one is around.

I'm usually not at home during the day to make AC an option, though I'm also thinking of it, especially for weekends. Currently I use excess energy from panel to boil my water during the day and for an hour in the early hours of the morning to prevent my people from complaining that water is too tepid. I have stopped using NEPA for my water heaters and water pumps.

Good morning folks.

Does anyone have any experience using felicity Lithium batteries; either for clients or personally?
Just trying to know if its a dependable buy.
Thanks


CC ojeysky ,Ceasar, Olopan, Valto, NiyiOmoIyunade, earthrealm, Eleojo23, Trippledots, Mctfopt, IYGEAL

jamesid29:
Good morning folks.

Does anyone have any experience using felicity Lithium batteries; either for clients or personally?
Just trying to know if its a dependable buy.
Thanks

Nah, I don't use the brand. So I've got no firsthand experience on how their battery perform.

jamesid29:
Good morning folks.

Does anyone have any experience using felicity Lithium batteries; either for clients or personally?
Just trying to know if its a dependable buy.
Thanks

I think either ceasar or adrusa has experience, I do not have one

ojeysky:
Hello folks, most of the time I now get my battery filled up by noon and I wonder what else folks use their excess power for? Am considering a geyser but does that work in this part of the world? Anyone using it?

Cooking. My AC runs 24 hours and I cook with the excess

here is a quote I got from a seller
is this not too much for 20 white bulbs, 1 TV, 6 ceiling fans.
Kindly note, I use prepaid meter

3.5kva 24v inverter 150k
4 pcs of 280w panel 35k each= 140k
2pcs 200Ah Felicity Battery 95k= 190
60A mppt charge controller 60k

DaBogu:
here is a quote I got from a seller

is this not too much for 20 white bulbs, 1 TV, 6 ceiling fans.

Kindly note, I use prepaid meter


3.5kva 24v inverter 150k

4 pcs of 280w panel 35k each= 140k

2pcs 200Ah Felicity Battery 95k= 190

60A mppt charge controller 60k

Not bad...

chris81964:

Cooking. My AC runs 24 hours and I cook with the excess

Ah I remember your airfryer videos yesterday then I started googling for a good airfryer, what's the spec/cost of yours and experience on its performance?

mctfopt:

Not bad...

I should go with Felicity Batteries?

DaBogu:
here is a quote I got from a seller

is this not too much for 20 white bulbs, 1 TV, 6 ceiling fans.

Kindly note, I use prepaid meter


3.5kva 24v inverter 150k

4 pcs of 280w panel 35k each= 140k

2pcs 200Ah Felicity Battery 95k= 190

60A mppt charge controller 60k

Actually it may be too small but it depends on the backup time you so desire

ojeysky:


Actually it may be too small but it depends on the backup time you so desire

12hrs back up time

I have installed about 10 units of the so called 48v 200ah Felicity.

The technical literature actually rates the battery at 48v 7.5kwh so I dont know how how sellers managed to call it 48v 200Ah.

I also ran a discharge test at one customer location and I was able to pull out about 5kwh measured at the inverter AC out - this equates to about 5.5kwh of DC energy before the battery started to scream low battery.

If you take this point as 90% DoD then the battery is truly rated at 6kwh at 100% capacity and you can safely take out about 4.5kwh if the desire is to stay above 20% DoD for longevity - at the point point of screaming battery pack was at 49.4v or so so 3.08v per cell.

To help put all the numbers in perspective, I do not charge a Lithium battery to 100% full - our max voltage is 56.8 vs Felicity's recommended 57.6v

In summary the battery rated 48v 200ah or better yet 7.5kwh has about 4.5kwh of useable energy in it. So really a 48v 94ah battery for effective capacity. If you buy it with these facts in mind, you won't be dissappointed. If you run the battery at the discharge rates suitable for lead acid, you should have no trouble in the near term. You really must look into a LVD mechanism at around 50v so you don't overdrain the battery

For the savvy individuals, I do not believe that there is another 1kwh+ of useable energy hiding behind that extra 0.8v of charge - it would be great to interrogate the BMS of which Adrusa who has ripped one out of the battery case has refused to volunteer any details to help us know what BMS it is and crack it open.

jamesid29:
Good morning folks.

Does anyone have any experience using felicity Lithium batteries; either for clients or personally?
Just trying to know if its a dependable buy.
Thanks


CC ojeysky ,Ceasar, Olopan, Valto, NiyiOmoIyunade, earthrealm, Eleojo23, Trippledots, Mctfopt, IYGEAL

NiyiOmoIyunade:
I have installed about 10 units of the so called 48v 200ah Felicity.

The technical literature actually rates the battery at 48v 7.5kwh so I dont know how how sellers managed to call it 48v 200Ah.

I also ran a discharge test at one customer location and I was able to pull out about 5kwh measured at the inverter AC out - this equates to about 5.5kwh of DC energy before the battery started to scream low battery.

If you take this point as 90% DoD then the battery is truly rated at 6kwh at 100% capacity and you can safely take out about 4.5kwh if the desire is to stay above 20% DoD for longevity - at the point point of screaming battery pack was at 49.4v or so so 3.08v per cell.

To help put all the numbers in perspective, I do not charge a Lithium battery to 100% full - our max voltage is 56.8 vs Felicity's recommended 57.6v

In summary the battery rated 48v 200ah or better yet 7.5kwh has about 4.5kwh of useable energy in it. So really a 48v 94ah battery for effective capacity. If you buy it with these facts in mind, you won't be dissappointed. If you run the battery at the discharge rates suitable for lead acid, you should have no trouble in the near term. You really must look into a LVD mechanism at around 50v so you don't overdrain the battery

For the savvy individuals, I do not believe that there is another 1kwh+ of useable energy hiding behind that extra 0.8v of charge - it would be great to interrogate the BMS of which Adrusa who has ripped one out of the battery case has refused to volunteer any details to help us know what BMS it is and crack it open.

I think they have a good BMS, but I have bypassed their BMS for ANT BMS because I had no way to communicate with it. But the BMS looks fine and well made.

jamesid29:
Good morning folks.

Does anyone have any experience using felicity Lithium batteries; either for clients or personally?
Just trying to know if its a dependable buy.
Thanks


CC ojeysky ,Ceasar, Olopan, Valto, NiyiOmoIyunade, earthrealm, Eleojo23, Trippledots, Mctfopt, IYGEAL

I think it is a good battery. The capacity may have been overstated, but I consider it a good buy. Their 200AH 48V actually has 120AH battery in it, but it cuts of at pretty high voltage around 49V which is about 3v per cell. That is too high in my opinion and that means you are probably getting about 70-80% of useable capacity out of the battery. Bypassing their BMS can help you get a little more from the battery if you like deep discharges.

Boss please post the particulars of this Felicity BMS - pictures, serial numbers and other identifying marks.

I am sure interested members of the house will quickly crack it open and establish comms and control for the good of all.

I know I can persuade her (BMS) to speak to me but alas I have no access to play with her.

One use case I have is ability to natively change the LVD setpoint before battery is critically overdrained.

adrusa:


I think they have a good BMS, but I have bypassed their BMS for ANT BMS because I had no way to communicate with it. But the BMS looks fine and well made.

My discharge testing rated it 48v 6kwh.

Your independent inspection of the internals confirms 120Ah cells - the two data points are amazingly close.

Please tell us more about the BMS itself - enough details to attempt communications. I am very eager to speak to her.

The constraint I have is all units I have access to are already installed at customer sites so not available for tinkering with.

In fact I had to trick one customer to perform a capacity test and determine the true battery rating. Told him we needed to 'calibrate' the battery so that all the 4 modules he purchased could 'sync' well with each other .

He gladly obliged!

adrusa:


I think it is a good battery. The capacity may have been overstated, but I consider it a good buy. Their 200AH 48V actually has 120AH battery in it, but it cuts of at pretty high voltage around 49V which is about 3v per cell. That is too high in my opinion and that means you are probably getting about 70-80% of useable capacity out of the battery. Bypassing their BMS can help you get a little more from the battery if you like deep discharges.

Deep discharges = shorter life and more risk of cell imbalances and early failure

I feel we are already at a disadvantage for cycle life in the tropics with ambient temperatures at 32degC vs the reference 25degC.

Any extra stress to battery could only worsen things?

adrusa:


I think it is a good battery. The capacity may have been overstated, but I consider it a good buy. Their 200AH 48V actually has 120AH battery in it, but it cuts of at pretty high voltage around 49V which is about 3v per cell. That is too high in my opinion and that means you are probably getting about 70-80% of useable capacity out of the battery. Bypassing their BMS can help you get a little more from the battery if you like deep discharges.