panini:
Hello Solar Gurus in the forum,

I just got a small solar system of a 300W solar panel, a PWM charge controller, a 1000W inverter and a used 200Ah battery.

My laptop charger is 65W and the system lasts 3 hours at night. I would like to know if I plug a fan of same wattage (65W) as the laptop without plugging the laptop, would I have the same number of hours? My thought goes into the induction coil in the fan. I am being careful as I got a fairly used battery and I don't want to put too much strain on it.

Please help on this.

mank1234:
Available for sale at the following offer price:

Morningstar Tristar 60A MPPT charge controller @ N200,000

2 " 325W solar panel at N55,000 each

Victron battery balancer at N25,000

Current location: Eket

Saipro:
My primary 12V charger died after about 10 years of meritorious service. Not keen on rewinding the transformer nor tampering with the FETs (done that once before and it wasn't quite the same).

Any recommendations for something cheap and reliable? Needn't exceed 20A (max 30A). Currently rigged a spare 250W panel with a spare CC to help people maintain batteries kept with me.

Saipro:
My primary 12V charger died after about 10 years of meritorious service. Not keen on rewinding the transformer nor tampering with the FETs (done that once before and it wasn't quite the same).

Any recommendations for something cheap and reliable? Needn't exceed 20A (max 30A). Currently rigged a spare 250W panel with a spare CC to help people maintain batteries kept with me.

Saipro:
My primary 12V charger died after about 10 years of meritorious service. Not keen on rewinding the transformer nor tampering with the FETs (done that once before and it wasn't quite the same).

Any recommendations for something cheap and reliable? Needn't exceed 20A (max 30A). Currently rigged a spare 250W panel with a spare CC to help people maintain batteries kept with me.

ojeysky:


Crisvicmall is actually cheaper, still looking for one that can beat their option.

Saipro:

.

PS: An energy meter would help. JUO and Kiekie1 stock them

nonoski:
Pls which brand of servo or stabilizers are most reliable.
Some say Prag other say A & E Dunamis while others recommend Mercury.
Please based on user experience which brand is most reliable (15kva -20kva single phase) with wide input range 100v - 240v.

Thank you

ojeysky:


Am using a 10kva Dunamis bought about 3 months ago....works well so far. It has a wide band as well 80v to 260v though once the current is below 150v iron, kettle etc are a no go area and the stab produces so much noise that make me scared of the stab spoiling.

nonoski:


Wow i tot it was only the bluegate brand i met in my friends house that makes such noise.

Maybe i should just go for isolated 5kva stabs for important equipment instead of buying these noisy 20kva central stab

NoMoreTrolling:
We just ordered for a couple battleborns Lifepo4 12v 100ah batteries and they are in transit to Nigeria.

I must say that I'm very very excited at the thought of having a battery that delivers 100% of it's rated capacity over a long period of time.

I will keep the house posted when they arrive and on how they perform and if indeed Lithium is the future.

From the way I see it, even at current prices, they may already be more cost effective than their lead acid counterparts, especially the ones from Nigeria.

zeestone99:
For sale

4 months used 3 units flames 300w - 35k each
4months Fangpusun flexmax 60amps controller - 80k

Reason 4 sale - money needed urgently
Prices r slightly negotiable
Call/whatapp 08117398294

ojeysky:


Actually it seem there are no good reports[1] about crisvicmall so use them at your own risk

[1] https://www.nairaland.com/1328960/chrisvicmall-customer-service-shippingprocurement-escrow/73#71982948

mank1234:


Another huddle: The seller is saying they ship from Taiwan. That if the shipper is receiving in China, that she'll have to pay tax in China. Any idea of Chinese tax rate?

johnmba:
Please is there any side effect connecting the output of my inverter with one wire ( the live).
I didnt see the neutral from the output.

ojeysky:


Am using a 10kva Dunamis bought about 3 months ago....works well so far. It has a wide band as well 80v to 260v though once the current is below 150v iron, kettle etc are a no go area and the stab produces so much noise that make me scared of the stab spoiling.

eddyline:

pls Whats d cost of Your stab and where did you get it from

mctfopt:



There will be no output if the neutral is missing.

Oshomo12:


I want to belief that d shipper should give u that info. Have you discussed with him on this, when he gave u quotation, is he aware that it's coming from Taiwan?

NoMoreTrolling:

I will keep the house posted when they arrive and on how they perform and if indeed Lithium is the future.

johnmba:


thanks.....But there is light in the house when we switch on the inverter. I dont know what the installer did

NiyiOmoIyunade:
Common neutrals! Not necessarily code compliant but that is how 90% of naija houses are probably (mis)wired but by jove it works!

Your inverter loads are sharing the same neutral wires as the PHCN/Gen neutral bus in your DB.

johnmba:


Thanks bro....does this have any effect on the inverter or the battery backup time

dapsyra:
See what I found when I opened up my old reliable Mercury 5KVA Inverter for cleaning recently.

Mind you, the inverter is located is located in a dedicated power room with a small window not facing the road. Yet, see how dusty it is.

dapsyra:
See what I found when I opened up my old reliable Mercury 5KVA Inverter for cleaning recently.

Mind you, the inverter is located is located in a dedicated power room with a small window not facing the road. Yet, see how dusty it is.

NiyiOmoIyunade:
No effects on battery backup time as far as I know.

I believe that using common neutrals increases the possibility of catastrophic damage in the event of a wiring fault - also most people do not obey the NEC code guidelines on how to properly size the neutral wire when doing common neutrals so if done incorrectly the possibility of overloaded neutral wires and wires melting and causing a fire increases.

dapsyra:
See what I found when I opened up my old reliable Mercury 5KVA Inverter for cleaning recently.

Mind you, the inverter is located is located in a dedicated power room with a small window not facing the road. Yet, see how dusty it is.