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How to make indoor lightning with Led Strip + Battery + Solar Panel?



Hello everyone,

First thing first. As you know im new to this =) However, im familiar with wiring & soldering some easy parts. I will try describe my problem detailed as possible for future readers with same problem.

My Grandmother living on a top of mountain for like 5 months in a year. As you gues, there is no electric. So, i decided to give her indoor lightning with solar enegry and led strip for at least 2-3h in a day. Place where she lives is mostly sunny. I can say thats about full sunny 3 months of 5 and semi-sunny or cloudy 2 months of 5 in total (There will be no autumn or winter usage).

I'm not planning to use 5m of strip at one connection. There are 4 rooms in the house. I'm thinking 9 leds (or 12) in each rooms. Lets say 12 for fixed amount talk. That makes 12 x 4 = 48 leds in total. If light would not enough for her, can consider increase led numbers 24 in each rooms. Also dose not excepting light from leds as normal lightning. Just wanting she would be able to see whats around.

My plan was simple before starting seacrh (LOL). 1 or 2 entry level solar panel(s). A backup battery (Li-Ion) charged via solar panel. And leds. So, things were not gone as expected of course.

I had searched like 5-6 hours about this in past 3 days. I had read every similar situations (or a part of this) that i find on here or somewhere else (other forums). Situations was different all the time. But, i learned a lot. And this is not enough yet.


I have learned there are a few types of 12V strip led (Do not remembering the link, sorry). But those are; 2835, 3014, 3528, 5050 and 5730. If i did not get it wrong, when number goes down brightnes goes down too. But, energy consumption goes down too.

There are a few things about led strips to know:
There is a Power Consumption number for all leds. But, that is not means all 5050 leds will consume same amount or other numbers. And its important about feeding your led strip. It depends on brand or manufacturer. If i didnt get it wrong (again).

If you feed your led more than its required Voltage, it means you are grinding its life cycle. It will gonna die faster than normal life time. That is also causing overheat on leds strips. However, not sure if its life time will be longer than normal if you feed it with less Voltage. Forexample; feed 12V led strip with 11V. Did not see anything about it while searching.

And last thing that i have learned about leds while searching is, led strips can be different on led numbers on them. Mostly (that i had read) they are 2 types on number. One is 60 leds on 1 meter and other on is 30 leds on 1 meter.

I have learned realy a lot about Li-Ion batteries at this link
https://www.e-cigarette-forum.com/forum/blog-entry/9-battery-basics-for-mods-the-ultimate-battery-guide.4848/

I have learned "do not over voltage your leds" and alternative methods in theory at this link
http://electronics.stackexchange.com/questions/135611/what-happens-if-i-supply-18v-to-a-12v-lighted-switch

I have learned "sometimes exact V is not enough when using solar panel" at this link (still confused about DC Booster part about will i need it or not)
https://www.instructables.com/answers/Why-can-I-recharge-lead-acid-batteries-with-solar-/

I have semi-learned "how to calculate Watts, Amps etc" at this link
http://diy.stackexchange.com/questions/18225/what-do-i-need-to-install-led-strip-lighting

I have learned there is a "Ohm's Law" and calculate/use it at this link
http://electronics.stackexchange.com/questions/117594/how-to-get-12v-5amps-battery-setup-for-led-strip

I have consolidated my new infos at this link
https://sirs-e.com/general/battery-powered-led-strips/

I have learned, that i can improve my batteries capacity or voltage (or both same time) with series/parallel connecting them at this link
https://www.batterystuff.com/kb/articles/battery-articles/battery-bank-tutorial.html

And few more links via links at above including i have learned there is a battery type 12V named "Lead Acid Battery" and variations of it.

I chose parts at below aka my simple plan (LOL).

Batteries (not all of them, need to decide which one. Batteries chosen via Li-Ion battery explanation link at above):
26650 5200mAh 3.7V High Capacity High Drain IMR Li-ion Orbtronic Battery -  http://www.orbtronic.com/26650-5200mAh-IMR-Li-ion-battery-orbtronic
Panasonic NCR18650PF 18650 10 Amp. 2900mAh Hybrid IMR Li-ion Rechargeable Battery - Flat Top - High Drain -   http://www.orbtronic.com/batteries-chargers/high-drain-18650-2900mah-ncr18650pd-hybrid-li-ion-rechargeable-battery-panasonic-flat-top

Solar Panels:
220x200mm-12V-5W-Solar-Panel-Fit-Car-Battery-Trickle-Charger-Backpack-Power
http://www.ebay.com/itm/220x200mm-12V-5W-Solar-Panel-Fit-Car-Battery-Trickle-Charger-Backpack-Power/141777113443?_trksid=p2047675.c100009.m1982&_trkparms=aid%3D777000%26algo%3DABA.MBE%26ao%3D1%26asc%3D36144%26meid%3Da11bbdc4faa8438bb298191c9d100913%26pid%3D100009%26rk%3D1%26rkt%3D1%26mehot%3Dag%26sd%3D221887501129

10W 12V Polycrystalline Cells Solar Panel Poly Battery Charger Power Generator
http://www.ebay.com/itm/10W-12V-Polycrystalline-Cells-Solar-Panel-Poly-Battery-Charger-Power-Generator-/221887501129?hash=item33a9869349:g:za4AAOSwVL1V-TGi


Now, i need your help and advices. Because, after all reads, King-Kong is still jumping in my head.

As i described before; i want to use a (or two) solar panel(s) and charge batteries then use batteries for light small led strips. All led strips should be connected together on one circuit from batteries. Ofcourse there will be small switchs in each room to lit on/off led strips.

4 x 3.7V Batteries makes a total of 14.8V or 3 x 3.7V batteries with 11.1V will do the job too? Can i connect 3 batteries in series and parallel for improve capacity and voltaj?

If possible, prefer to use batteries in day time too. Not for long day time or load. I gues like 5-10 mins in day time for dark rooms.

Detailed explanation or step by step guide link would be freaky awsome. I have learned many things while searching but in theory. As you know im all about strange to terms. And there will be few future readers like me too i believe.

I'm sorry about my English and long links. Do not know how to shorten them.

Best regards,
Mehmet

signOnthe (author) 11 months ago

Realy great guide which is fixed and answered my questions.

https://www.instructables.com/id/Small-12V-Battery-...