Power Inverter needed for 20W Solarpanel

[ency]

Hello,

i have a question regarding a 20W Solarpanel which was delivered with my camera which i use in my garden with a sim card. I would also to use this solarpanel to charge my iphone or charge my laptop. What do i need? The solarpanel has a 12V DC Cable like this one here: https://www.google.de/url?sa=i&url=...ved=0CBMQjhxqFwoTCODpvdqA_P4CFQAAAAAdAAAAABAI

So do i need a power inverter or any other adapter to be able to charge laptop and mobile phone? Could you pls send me links what i shall buy
Thx a lot!

 

[Jordi]

The phone you can charge with a USB 5V module often included in these small 20W panel; the module delivers up to 20W at 5V, just what phones need; which is 5-10W. This one is easy.

For the laptop I doubt you can directly charge it with a 20W panel, often they require at least 40W in shut off mode.
You can maybe charge your laptop with a charge controller (PWM or MPPT) and a 100Wh approx. battery; yet here you may encounter complications because many laptops use 19,5V (so you need a DC-DC converter to modify the 12V from the panel) and many laptops require signals from the charging cables that allow the charging to start, so can the laptop ensure the charger used is safe (or from the same brand of the laptop). Another option is that you use a tiny DC-AC inverter of 300W in combination with your laptop charger, but then you may need a slightly bigger battery because their conversion efficiency is 85% with an idle consumption of 5-10W. So assuming you need 2 hours to charge your laptop in shut-off mode, that is 80W charging + 20W idle inverter + 15W conversion inefficiencies +10% overdesign = 130Wh battery for a full charge.

 

[ency]

thx a lot for that useful informations

 

[SamDeleted]

This will charge your phone

20w/12v solar panel wired directly into the back of this should be OK

12V CBE C-Line Dual USB Socket Modul Ladegerät Campervan Caravan Wohnmobil 2.1A | eBay

4.8A Dual USB PD QC3.0 Auto Boot RV Schnellladebuchse LED Steckdose 12V 24V. 12V CBE USB Buchse. CBE Dual USB Buchse. Wir pflegen hohe Qualitätsstandards und. Dual USB Ladegerät. Alle unsere Steckdosen und Schalter entsprechen den CE-Sicherheitsanforderungen.

www.ebay.de

Charging the laptop is a whole different kettle of fish


You would need:

a bigger solar panel
a solar charge controller (PWM or MPPT) ,
a 12v battery (car battery or caravan battery)
cables and fuses


And then either:

A 12v inverter with your normal laptop charger plugged into it

Or

A suitable universal 12v laptop charger like this link

https://www.amazon.co.uk/TAIFU-Universal-12V-24V-Pavilion-Thinkpad/dp/B07W5DD6M9/ref=asc_df_B07W5DD6M9/?tag=googshopuk-21&linkCode=df0&hvadid=375464630119&hvpos=&hvnetw=g&hvrand=924404634323213362&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9045262&hvtargid=pla-832370912858&psc=1&tag=&ref=&adgrpid=82480544808&hvpone=&hvptwo=&hvadid=375464630119&hvpos=&hvnetw=g&hvrand=924404634323213362&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9045262&hvtargid=pla-832370912858

I'd estimate less than €200 total to take your laptop permanently off grid

 

[SamDeleted]

My solution for charging phones is very similar, but slightly different

I have a 5v solar panel designed battery CCTV cameras , it has a micro usb output

I use it to charge a small power pack





Like these for example:

ROMOSS Power Bank 10000mAh 2USB Externe Akku Batterie Ladegeräte Für alle Handys | eBay

Entdecken Sie ROMOSS Power Bank 10000mAh 2USB Externe Akku Batterie Ladegeräte Für alle Handys in der großen Auswahl bei eBay. Kostenlose Lieferung für viele Artikel!

www.ebay.de

10w USB Solarpanel, 5 V Typ-c Hochleistungs Monokristallin Modul, Wasserdichtes | eBay

Entdecken Sie 10w USB Solarpanel, 5 V Typ-c Hochleistungs Monokristallin Modul, Wasserdichtes in der großen Auswahl bei eBay. Kostenlose Lieferung für viele Artikel!

www.ebay.de