NiyiOmoIyunade:
It simply means the batteries were not very far apart in SoC (good news) or one battery is already toast since the voltage fell so sharply in such a short time (bad news)

If you bought the HA02 balancer it can move up to 10A of current between the batteries - that is sufficient charge into a weaker battery to make the voltages appear to converge.

Two tests I do -#1 - with the balancer attached, allow the batteries to drain to 12v each and then slightly beyond e g 11.8v each. If they all stay in sync as per voltage when drained so far, then they are all pretty well matched in capacity and your balancer saved the lesser charged battery from dieing prematurely.

Test #2 - with the balancer attached, measure voltage of each battery when the inverter or CC is in ABSORB - they will likely not stay at perfect sync but it is okay to see .03v of deviation - if you have one battery at 14.8v during absorb and another at 14.1v or less then one of the batteries is out of spec and needs to be identified.

You did not specify if you were using Quanta batteries for this test? Not sure how well they would survive charging at 14.7v

Namzy:

Do battery balancers work that fast..... 5 secs hmmm

desiji:
So to Giving back my Installation:
. My Solar Systems comprises of the following
1. 15 Pieces of EcoDelta 280Wp Poly Solarmodule
2. 1 complete all in one Inverter FSP502PV-230F-48v Off-Grid
3.100m of Solar cable 4mm black
4. ECO-WORTHY 6 String PV Combiner Joint Box & 15A Circuit Breakers for Solar Panel
5. pylontech US2000B plus 48v
6. ICC software for monitoring
7. Diverses Circuitbreakers and accessories

nonoski:


If only u knew the nr of days I soaked Garri to be able to afford 12 batteries (N1.3m) within 6 weeks.

NiyiOmoIyunade:
Just to add that effectiveness of an SPD in DC applications will now depend on the design tolerance of the equipment you are protecting vs the SPD's trigger threshold.

Since the surge protection device will only begin to divert fault current when it sees voltage rise above the set limit, you must match the SPD to the design tolerance of the equipment you are protecting.

A good CC can withstand a few thousand volts of surge voltage with no damage, your average inverter may not survive that experience So it is not sufficient to just install any SPD but rather one suited to protect your target device(s).

If price is not an object, then you may want to look at the Midnite SPD or perhaps Delta or Schneider. Midnite SPDs are practically the gold standard for surge protection and will limit the voltage rise your device sees to safe limits e.g the SPD 300 will begin diverting fault current at 385volts and almost assuredly limit the maximum voltage rise your device sees to under a thousand volts.

Midnite have some interesting videos and comparison tests on their website. I may share these later.

DMerciful:
Firstly, it is not advisable to use it for AC application since its designed for DC. Secondly, even for DC application, it will only come to play if the surge exceeds 670v

Oshomo12:


I want to belief this issue was discussed sometimes back. Please use AC for AC and DC for DC, no reason looking for trouble.

GeorgeD1:
after rain, comes shine.

for those peeps here in the south-south, it seems happy times
are finally here after all the weeks of never-ending rainfall

ab3458:
Hello house, please what is the difference between the 12v and 24v inverter a friend said that the 24v volts consumes more energy and advised I go for 12v-800w to1kva inverter since its a small set up comprising tv, home theater, dstv, rechargeable fan and 4 bulbs. Ive gotten 2 units of 150ah network batteries. But mercury battery backup time calculator says otherwise. Please advise thank you

efuro:



I have a question for gurus only. is there anyway I can configure 2 separate pv stream on a single 300v DC mnspd. i could not get 115v dc type when I was buying and I had to buy the 300v because any form protection is better than non even though most cc protection is not up to 300v except TriStar

OnePunchMan:

Cost with tax = 45.57 = 14127 Shipping = 6660 Total = 20787
Contact in profile

Disco01:

Thanks dear, this is really helpful.

What could be the wattage of an average 1kw inverter?

OnePunchMan:


Hello,

We can only place orders on amazon USA for now.

Thank you.

OnePunchMan:

Hello,
We can only place orders on amazon USA for now.
Thank you.

NiyiOmoIyunade:
This is correct for cold weather and early morning.

What about a 26°C afternoon with full sun and clear skies such as we have seen in the last few days? You can easily overshoot nameplate in that scenario.

Saipro:

In cold weather, yes.
In cloud edge glare, yes.
When panels are underrated (to oust the competition), yes.
When charge controllers overstate their performance or data, yes.

Could these variables be stacked? Yes.

kadorzy:
Hello house, can the head of house and the plenty gurus in the house help me out.
I need a template that can guide me in designing a quotation for an offgrid solar power system.
I have all the facts but lack any formal sample to use for it.

Thanks all.

kiekie1:


Nice one . mine also works great! See pics of my improvised DC led for individual battery voltage monitoring

Smartcell global services
081-350-31951

JUO:
Power your fridge, freezer, AC with solar during the day and public power at night when available. Don't kill your batteries with huge load. Price is 16k for 63a

JUO:
Power your fridge, freezer, AC with solar during the day and public power at night when available. Don't kill your batteries with huge load. Price is 16k for 63a

pranil:
\


even Schinder is looping the neutrals on a neutral busbar for both input and output so I would say you can safely loop them with same size conductor as L input

pranil:
\


GUYS Are you sure you did not get the US model ( there is L1 and L2 with N) only in US models L1, L2 E and N

for UK/EU 230 V 50 HZ models there is L, N and E for both input output

or is it SW+ with separate generator input

see the snapshot from manual and download link - https://41j5tc3akbrn3uezx5av0jj1bgm-wpengine.netdna-ssl.com/wp-content/uploads/2018/05/ML20180101_Conext-SW-230V-Installation-Guide-975-0637-01-01_Rev-F_ENG.pdf



even Schinder is looping the neutrals on a neutral busbar for both input and output so I would say you can safely loop them with same size conductor as L input

VULCAN:
@mcTrinty

Thanks for your reply.

Any idea of a reliable source for any of these CCs or the Mustpower?

The battery number I finally settle with will be decided by whether the inverter I choose is 24 or 48v. I have 1500W panels.

Thanks