jmaine:


Contact details please...

080\ 2289\ 1860

JaySterling:
Hey guys, I’m new to this

How will I know when my inverter battery is full?

I charge with solar panels and Nepa too.

Show us your inverter.

BetaTechnicians:

080\ 2289\ 1860

Thank you sir

While on solar, the current passing through the cables may not be zero especially if there are house loads running. Even without loads, whether running Mains passthrough or on solar, a good charger will still put out some very low amps (trickle charge) while the battery is full and in float - this kind of charge helps offset the internal self discharge of the battery.

A sure way to know if your battery is full is coulomb counting such as you do with a battery monitor like Victron or Fangpusun or Bogart - you basically measure the net amps in and/or out and then declare the battery full when sufficient amps have gone into the battery to replace what was used (various parameters need to be met to satisfy the battery full criteria)

A quick and dirty way is to use the battery voltage while charging as an indicator of state of charge - if your battery hits absorb and stays there for a preset time, you can declare the battery full for all practical purposes especially if you see the current drop sharply to a level called 'tail current'.

mctfopt:


A sure way to know is to either to buy a clamp meter and measure the current flowing into the battery, if the current is zero on the meter, when there is NEPA or solar, the battery is full.

www.nairaland.com/attachments/11278778_images7_jpeg_jpegc250b88d3a108a1e74e6c9bf7bb78252

Or if your inverter has an LCD or LED display that shows the state of charge when the battery is full.

How will I know that my battery is fully charged by the Solar panels

NiyiOmoIyunade:
While on solar, the current passing through the cables may not be zero especially if there are house loads running. Even without loads, whether running Mains passthrough or on solar, a good charger will still put out some very low amps (trickle charge) while the battery is full and in float - this kind of charge helps offset the internal self discharge of the battery.

A sure way to know if your battery is full is coulomb counting such as you do with a battery monitor like Victron or Fangpusun or Bogart - you basically measure the net amps in and/or out and then declare the battery full when sufficient amps have gone into the battery to replace what was used (various parameters need to be met to satisfy the battery full criteria)

A quick and dirty way is to use the battery voltage while charging as an indicator of state of charge - if your battery hits absorb and stays there for a preset time, you can declare the battery full for all practical purposes especially if you see the current drop sharply to a level called 'tail current'.

JaySterling:
How will I know that my battery is fully charged by the Solar panels

True, but they'll moments of zero and then some current, equivalent to the load on the inverter, and zero again. It'll alternate, that just means the battery is full.

My mum have a 48v, 3.5kva Sukam inverter which she retired after 2 yrs because she could not afford to replace all 4 batteries when they died. She is currently using a 24v inverter bought from Kiekie. I am interested in the exchange

adrusa:
I have a perfectly working 4-year old 24v outback inverter (VFX-3024E) that I will like to exchange for a 48V variety or another good inverter or sell for cash if I get a reasonable offer. I also have a mate 3 I can sell at a reasonable price.

I am not aware of this phenomenon you have described where current fluctuates between zero and a value o. I guess it depends on the engineering specs of the charger you are using.

The chargers I have access to all output a steady current - even the solar chargers increase/reduce current smoothly and tend to hold steady regardless of the stage of battery charging.

mctfopt:





True, but they'll moments of zero and then some current, equivalent to the load on the inverter, and zero again. It'll alternate, that just means the battery is full.

mctfopt:


It's a smart rectifier, will stop charging when battery is full.

It simply float charges all day long

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kiekie1:


It simply float charges all day long

Such charger will be good for Gel battery right

spartacus11:


Such charger will be good for Gel battery right

NOTE: Gel batteries don't like excessive current inrush vis-a-vis high volt charging unlike Agm specs. If well calculated , you can use but that module pumps current like tomorrow doesn't exist ..
The DC module can solely serve as a supportive charger since it lacks 3-4 stage charge feature ! I have done lot of tweak on those modules but not advisable to depend on it as a complete intelligent charger okay.. Cheer's

kiekie1:



NOTE: Gel batteries don't like excessive current inrush vis-a-vis high volt charging unlike Agm specs. If well calculated , you can use but that module pumps current like tomorrow doesn't exist ..
The DC module can solely serve as a supportive charger since it lacks 3-4 stage charge feature ! I have done lot of tweak on those modules but not advisable to depend on it as a complete intelligent charger okay.. Cheer's

Thanks Boss

NiyiOmoIyunade:
I am not aware of this phenomenon you have described where current fluctuates between zero and a value o. I guess it depends on the engineering specs of the charger you are using.

The chargers I have access to all output a steady current - even the solar chargers increase/reduce current smoothly and tend to hold steady regardless of the stage of battery charging.

It happens only on solar. Goes to zero or near zero on most inverters and maintains that.

Any installer in Lagos that can help out with minimal set-up?

I'm looking at getting an 1-1.5kva inverter and a 200ah battery.

Would appreciate referrals too.

mctfopt:


It happens only on solar. Goes to zero or near zero on most inverters and maintains that.

I don't think the behaviour should be different even if charged with utility. When a battery is full, such as my Lifepo4 the charge current drops to zero

ojeysky:


I don't think the behaviour should be different even if charged with utility. When a battery is full, such as my Lifepo4 the charge current drops to zero

I wanted to add "if inverter is on load" before the first sentence.

Has anyone ever experience this fault on Fangpusun flexmax 80/150.

The unit goes into sleeping mode and doesn't wake up even after a reset.

Unit is about 4months old, connected to 8unit 300w Canadian solar panels (2×4 configuration)

Tnycee:
Has anyone ever experience this fault on Fangpusun flexmax 80/150.

The unit goes into sleeping mode and doesn't wake up even after a reset.

Unit is about 4months old, connected to 8unit 300w Canadian solar panels (2×4 configuration)

My friend had this issue, this @ efuro's advice helped him fix the issue

Pasword is set at 141

Go to Advance menu of your flexmax
MPPT Mode to U-pick from Auto Track (if you are using inverter with nepa change nonGT to GT
From experience set Park MPPT to 77%
Mpp Range Limit as 1/2 (half from FULL) and VOC to 99%

That is all, this should resolve your snoozing problem.

Dam5reey:


China, that has open almost all factories..

I don't think Corona will stay that long on the panels..

China has indeed resumed work in most of her factories. In fact BMW and Tesla have resumed work in earnest. However the problem now is apparently destination countries for items shipped out ofthese factories.

I ordered for a coupla small items and a DC solar submersible about 4 weeks ago, they all got shipped 3 weeks ago and last available tracking of about 10 days ago showed that it is on outbound airline out of China. Ever since then, tracking has not been updated.

I believe items must have gotten stranded at 9ja port of entry and may not move another inch until all these lockdowns are over. In fact, NIPOST expressly stated that they have suspended operations for now.

Funny enough those items, N95 masks, smoke masks, biohazard oxygen masks, biohazard suits and the pump included were ordered for as materials for "doomsday prep" , apparently the day came faster than the materials.

ceaser:



Funny enough those items, N95 masks, smoke masks, biohazard oxygen masks, biohazard suits and the pump included were ordered for as materials for "doomsday prep" , apparently the day came faster than the materials.

I also have items that have been stuck at "Handover to airline" for 2 weeks now.

Please house.

System is 12volt inverter and battery. Charged by 2 pcs SCC units 60amps MPPT (same product) connected in parallel. One is fully maxed out at 6 pcs 150 watts panel connected in 2s3p. The second SCC receives input from a 2 pcs 150 watts panel in 2s config, planned to be maxed out like the counterpart at a later date. Batteries are 2 units 12v 120ah LFP connected in parallel.

On a good day, as much as 50 amps comes from the fully maxed SCC and 18 amps from the second SCC.

Wires leading from SCC common terminals to the battery is 10mm copper, about one yard each.

What I am not comfortable with is that the 10mm wire gets slightly warm when max current (as written above) is flowing from the SCC. And with the plan to still max out the output in the second SCC, to bring the total amp going into the batteries to around 110amps, I am a little bit worried that the wire may get unsafely hotter.

Should I be comfortable with the 10mm handling that anticipated amp or would you suggest something else?

Thanks.

ceaser:
Please house.

System is 12volt inverter and battery. Charged by 2 pcs SCC units 60amps MPPT (same product) connected in parallel. One is fully maxed out at 6 pcs 150 watts panel connected in 2s3p. The second SCC receives input from a 2 pcs 150 watts panel in 2s config, planned to be maxed out like the counterpart at a later date. Batteries are 2 units 12v 120ah LFP connected in parallel.

On a good day, as much as 50 amps comes from the fully maxed SCC and 18 amps from the second SCC.

Wires leading from SCC common terminals to the battery is 10mm copper, about one yard each.

What I am not comfortable with is that the 10mm wire gets slightly warm when max current (as written above) is flowing from the SCC. And with the plan to still max out the output in the second SCC, to bring the total amp going into the batteries to around 110amps, I am a little bit worried that the wire may get unsafely hotter.

Should I be comfortable with the 10mm handling that anticipated amp or would you suggest something else?

Thanks.

That's why we love lithium, see high amperage dey flow like water. You can upgrade to 16mm² cable to prevent the cable insulation from thermal derating.

You should use a cable size vs distance chart.


In general;

10MM2 Cable is rated for about 40A Max

16MM2 Cable is rated for about 60A Max

For your specs you are better off with 25mm2 from each CC to battery and then 35mm2 mimimum for your *common* battery interlink or bus bar distribution.

For the CC yielding 18amps, you can cheap out and keep 10mm2 cable but as you add more panels, you will ultimately upgrade to thicker gauge cables - might as well bite the bullet at once

ceaser:
Please house.

System is 12volt inverter and battery. Charged by 2 pcs SCC units 60amps MPPT (same product) connected in parallel. One is fully maxed out at 6 pcs 150 watts panel connected in 2s3p. The second SCC receives input from a 2 pcs 150 watts panel in 2s config, planned to be maxed out like the counterpart at a later date. Batteries are 2 units 12v 120ah LFP connected in parallel.

On a good day, as much as 50 amps comes from the fully maxed SCC and 18 amps from the second SCC.

Wires leading from SCC common terminals to the battery is 10mm copper, about one yard each.

What I am not comfortable with is that the 10mm wire gets slightly warm when max current (as written above) is flowing from the SCC. And with the plan to still max out the output in the second SCC, to bring the total amp going into the batteries to around 110amps, I am a little bit worried that the wire may get unsafely hotter.

Should I be comfortable with the 10mm handling that anticipated amp or would you suggest something else?

Thanks.

mctfopt:


That's why we love lithium, see high amperage dey flow like water. You can upgrade to 16mm² cable to prevent the cable insulation from thermal derating.

In fact, I just thought about that fact again yesterday. One can not try that shyte with lead acid amp for amp.

NiyiOmoIyunade:
You should use a cable size vs distance chart.


In general;

10MM2 Cable is rated for about 40A Max

16MM2 Cable is rated for about 60A Max

For your specs you are better off with 25mm2 from each CC to battery and then 35mm2 mimimum for your *common* battery interlink or bus bar distribution.

For the CC yielding 18amps, you can cheap out and keep 10mm2 cable but as you add more panels, you will ultimately upgrade to thicker gauge cables - might as well bite the bullet at once

Thanks sir.

khattab008:
Any installer in Lagos that can help out with minimal set-up?

I'm looking at getting an 1-1.5kva inverter and a 200ah battery.

Would appreciate referrals too.

Buzz me up 08168986461

To fellow diyers looking for low power submersible pumps, i stumbled on this goldmine.
250w AC 1000liters per hr sumo pump.
Its on aliexpress, amazon, ebay as well. It would be easy to incorporate a timer and float switch as well..

My new plan now is to add additional 2 x 250w panels to the setup , but wire them in parallel to the existing 2 panels and put a timer on the additional panels. This timer will be synced with the pump timer so they both come on and go off at the same time....to avoid boiling the single 12v 200ah battery

To view 【NGN 19,464.36 16%OFF | SHYLIYU 1" Outlet Stainless Steel Screw Water Pump 3" OD Pipe 0.33Hp Submersible Deep Well Pump 20m Cable Centrifugal Bore Pump】 on AliExpress with code #_d7emt9a#, copy the whole sentence and open the app.

My only question is....would an 850va luminous hybrid inverter be able to handle its startup surge.

can 24 volt solar panels ( 3 250watts panels) be connected in parallel to a 12 system. I use a 60amp mppt charge controller.

earthrealm:
To fellow diyers looking for low power submersible pumps, i stumbled on this goldmine.
250w AC 1000liters per hr sumo pump.
Its on aliexpress, amazon, ebay as well. It would be easy to incorporate a timer and float switch as well..

My new plan now is to add additional 2 x 250w panels to the setup , but wire them in parallel to the existing 2 panels and put a timer on the additional panels. This timer will be synced with the pump timer so they both come on and go off at the same time....to avoid boiling the single 12v 200ah battery

To view 【NGN 19,464.36 16%OFF | SHYLIYU 1" Outlet Stainless Steel Screw Water Pump 3" OD Pipe 0.33Hp Submersible Deep Well Pump 20m Cable Centrifugal Bore Pump】 on AliExpress with code #_d7emt9a#, copy the whole sentence and open the app.

My only question is....would an 850va luminous hybrid inverter be able to handle its startup surge.

Wow! This sounds like jackpot, have you received the order on AliExpress yet? As to your question I think it should be able to handle it but why not just connect it to your existing set-up since it's AC?

olatade:
can 24 volt solar panels ( 3 250watts panels) be connected in parallel to a 12 system. I use a 60amp mppt charge controller.

Yes it can.
They can also be connected in series as well, if ur mppt CC Voc is 150v

ojeysky:


Wow! This sounds like jackpot, have you received the order on AliExpress yet? As to your question I think it should be able to handle it but why not just connect it to your existing set-up since it's AC?

The existing setup is 12v x 200ah battery, hooked to 2 x 250w panels, my fear is that the extra strain of running the 250w pump for 2 to 4 hrs daily, may be draining the batt badly, especially during poor weather...hence my uncommon plan to put 2 3xtra panels on timer...

I intend to wire it up with a float switch as well, to control tank fill up and pump shitdown as the setup is designed to be purely autonomous since its its in the villa and no knowledagble person around

@ aliexpress, yes received items from there, but hvnt oredered the pump yet.
Learnt nipost hv suspended ops for 2wks, so AliExpress purchases are a bit dicey now