මචන්ලා එන පොට හොද නැ .

[Emios]

What’s going on.Depression ahead?

 

[magix]

ඌ

 

[Avatar998]

ඇයි එන පොට හොද නැ කියන්නේ ?

 

[ara88]

ගමකට පලයන් බං.. මම ගමක ඉන්නෙ. මෙහෙට කරන්ට් කපන්නෙ නෑ මතක කාලෙක ඉදන් ආරංචි වදිහට කපල වැඩක් නැතිලු පරිභෝජනය මදිලු

 

[Kevin_Fdo]

menna meke balanna. gennala denawa.

https://www.facebook.com/groups/diyoffgrid

mekata join wela ahala balanna


Battery nan dawasata yana kwh gana balagaththa nan lesiy. watt meter ekak ehema nadda?

 

[NetFreak]

Ela machan. eka UPS ekata set kalama Ayi charger ekak one nane. UPS eke Charging ekkane enne.

UPS current eken (~1A) car battery ekak charge wenna sahenna welawak yanawa. Eka nisa charger ekak ganna wenawa. Charger eke 5A, 10A wage current ekak thiyanawa. Intelligent charger ekak ganna. Full charge karata passe auto charge wena eka nawathinawa.

 

[HAneo]

Have you calculated the load for a set? What are the appliances and their wattage values? Critical battery capacity and inverter specs can be worked out from that. Battery charger selection comes after that. Then onwards it is a matter of finding the components within your budget range.

By the way 7Ah battery does not seem to be adequate for your needs.

Thanks machan
Standered laptop machan (20 V = 5.25 A) 65W
Router - SLT fiber one - no idea about the consumption
Light - 60W ara LED light ekak thibba nam athi machan

but what is this "Critical battery capacity"?
and pls help me with Battery charger , Battery and invertor for above specs?

---

menna meke balanna. gennala denawa.

https://www.facebook.com/groups/diyoffgrid

mekata join wela ahala balanna


Battery nan dawasata yana kwh gana balagaththa nan lesiy. watt meter ekak ehema nadda?

Electronic Zero ban mama gal kabbek. watt meter ekak nam set karaganna puluwan
------ Post added on May 1, 2022 at 5:41 PM

 

[NetFreak]

Car battery ekak gaththoth full discharge karanna ba. 50% wenakan witharai discharge karanna puluwn. Calculations karaddi ekath poddak mathaka thiya ganna

 

[HAneo]

What’s going on.Depression ahead?

may be. but we have to ready as far as we can. end point will be no internet. till them we have to work.

---

UPS current eken (~1A) car battery ekak charge wenna sahenna welawak yanawa. Eka nisa charger ekak ganna wenawa. Charger eke 5A, 10A wage current ekak thiyanawa. Intelligent charger ekak ganna. Full charge karata passe auto charge wena eka nawathinawa.

Aha eka thama seen eka. machan me wage ekaka link ekak dapan. eka nathi unoth e spec eken wena ekak hari gannam
------ Post added on May 1, 2022 at 5:48 PM

---

ඇයි එන පොට හොද නැ කියන්නේ ?

ඇයි බන් අපි දැන් මුට්ටියේ ඉන්න කකුළුවෝ වගේ නේ. මුන් මේ තාවකාලික ෆන් එකක් දෙන්නේ . ඉස්සරහට නය නැ . ඒ කියන්නේ කරන්ට් එක නැ . එකට හරි හමන් ක්‍රමයක් නැ . මුන් මේක දාල යන්නෙත් නැ ඕකයි. හැබැයි මුන්ව එලවනවා මයි. අපේ කස්ටමර් ලට බැගපත් වෙන්න බැනේ බන් හැමදාම. මට නම් සිරා ලජ්ජයි බන් පැය 7 8 කරන්ට් නැ කියන්න. එක නිසා තමා මෙහෙම එකක් බැලුවේ
------ Post added on May 1, 2022 at 5:52 PM

 

[NetFreak]

Aha eka thama seen eka. machan me wage ekaka link ekak dapan. eka nathi unoth e spec eken wena ekak hari gannam

Mage eka yaluwekgen bro illa gaththe. Eka pitakotuwen aragena thibbe.

https://www.daraz.lk/products/belly...a0e.searchlist.list.4.feb07876PxlpZx&search=1

Me thiyenneth a item ekama thamai. Poddak reviews ehema balala ganna

 

[HAneo]

Mage eka yaluwekgen bro illa gaththe. Eka pitakotuwen aragena thibbe.

https://www.daraz.lk/products/belly...a0e.searchlist.list.4.feb07876PxlpZx&search=1

Me thiyenneth a item ekama thamai. Poddak reviews ehema balala ganna

Ok machan

 

[NetFreak]

Thanks machan
Standered laptop machan (20 V = 5.25 A) 65W
Router - SLT fiber one - no idea about the consumption
Light - 60W ara LED light ekak thibba nam athi machan

but what is this "Critical battery capacity"?
and pls help me with Battery charger , Battery and invertor for above specs?

Me power consumption tika baluwoth
Total Power Consumption = 65 + 60 + 20 (Estimation for Fiber) = 140W

90Ah 12v car battery Watt hours = 90 * 12 = 1080
for 50% consumption (car battery) = 1080W / 2 = 540
Time for 140W equipment = 540/140 = 3.8 hours ~ 3.5 hours

mama hithanne meka thamai calculation eka. Kauruhari waradi nan kiyanna

 

[HAneo]

Me power consumption tika baluwoth
Total Power Consumption = 65 + 60 + 20 (Estimation for Fiber) = 140W

90Ah 12v car battery Watt hours = 90 * 12 = 1080
for 50% consumption (car battery) = 1080W / 2 = 540
Time for 140W equipment = 540/140 = 3.8 hours ~ 3.5 hours

mama hithanne meka thamai calculation eka. Kauruhari waradi nan kiyanna

Ade patta hode.
e kiyanne Battery dekak parallel gahuwoth paya 7 k adinna puluwna kiyana ekane?

 

[lovethebomb]

Thanks machan
Standered laptop machan (20 V = 5.25 A) 65W
Router - SLT fiber one - no idea about the consumption
Light - 60W ara LED light ekak thibba nam athi machan

but what is this "Critical battery capacity"?
and pls help me with Battery charger , Battery and invertor for above specs?

---

------ Post added on May 1, 2022 at 5:41 PM

Critical kiwwe minimum required machan.


Okay. I'm gonna consider laptop + router + light as a "set". Also, let's take wattage of router to be 5 W.


Battery capacity =>

Total power of a set = 65W + 5W + 60W = 130W

Assuming 10 hour usage per day,

Total consumption per day per set = 130W * 10 hrs = 1300 Wh (watt hours)

This 1300 Wh would be the minimum battery capacity. Divide it by voltage of the required battery, you'll get the Ah value, which is a different way of representing battery capacity. For instance if you go for a 12V battery,

minimum Ah of battery = 1300 Wh / 12 V = 108 Ah ≈ 110 Ah

So, aim for a battery more than 110 Ah. I'd go for 150 Ah (that extra margin is for heat losses and so on). You can parallel smaller batteries and form 150 Ah as well.

However, if you go for a lead acid battery, you need to double this amount...so 300 Ah. This is because lead acid can only be discharged down to 50% of its capacity to retain battery health. This is not an issue for Li-ion.


Inverter power =>

Inverter should have power rating exceeding your load wattage...so greater than 130W. However inverters usually need 50% legroom for smooth operation so effective power rating would be,

Minimum inverter rating = 130W * 150% = 195 W

I would choose a 500W inverter just to be on the safe side and for future expansion.

Also, since you're planning to use a laptop get a pure sine wave inverter. Modified waves impart too much stress on power adapters.


Finally, put circuit breakers between between inverter and your appliances.

This calculation only entails battery and inverter. Battery charger will require additional considerations.

 

[HAneo]

Critical kiwwe minimum required machan.


Okay. I'm gonna consider laptop + router + light as a "set". Also, let's take wattage of router to be 5 W.


Battery capacity =>

Total power of a set = 65W + 5W + 60W = 130W

Total consumption per day per set = 130W * 10 hrs = 1300 Wh (watt hours)

This 1300 Wh would be the minimum battery capacity. Divide it by voltage of the required battery, you'll get the Ah value, which is a different way of representing battery capacity. For instance if you go for a 12V battery,

minimum Ah of battery = 1300 Wh / 12 V = 108 Ah ≈ 110 Ah

So, aim for a battery more than 110 Ah. I'd go for 150 Ah (that extra margin is for heat losses and so on). You can parallel smaller batteries and form 150 Ah as well.

However, if you go for a lead acid battery, you need to double this amount...so 300 Ah. This is because lead acid can only be discharged down to 50% of its capacity to retain battery health. This is not an issue for Li-ion.


Inverter power =>

Inverter should have power rating exceeding your load wattage...so greater than 130W. However inverters usually need 50% legroom for smooth operation so effective power rating would be,

Minimum inverter rating = 130W * 150% = 195 W

I would choose a 500W inverter just to be on the safe side and for future expansion.

Also, since you're planning to use a laptop get a pure sine wave inverter. Modified waves impart too much stress on power adapters.


Finally, put circuit breakers between battery and inverter; and between inverter and your appliances.

This calculation only entails battery and inverter. Battery charger will require additional considerations.

hari machan me theory eka theruna.
Yes i will get a pure sine wave inverter cus i need to be in the safe zone as you have mentioned.
For the first step i need to choose products as you guys describe and then i will call for some help again
First i do one. and check if it is worth and some need to be changed. then i will go for other 6 kits after
Thanks bro for helping me

 

[luk3r]

Hambanthota thiyenawa Leoch kiyala battery company ekak, eken ganna 100A deep cycle batteries.

aliexpress eken ganna hybrid inverter ekakuth.

a 2 athi backup ekak hadanna

 

[කඩ්ඩ බැරි එකා]

ඉමපච

 

[reddeckuka]

battery eka madi neda

 

[Emios]

Paya 20k kapuwama paya 4da charge karanne

 

[Tharaka_x]

බම්ප්