Amazon portable solar half price.

[Darto]

deal of the day... 42" x 20" $101 30 amp

https://camelcamelcamel.com/product/B00BFCNFRM

https://www.amazon.com/gp/product/B00BFCNFRM/

[Darto]

• [Wide Application] 400Wh daily output depends on the 4 hours sunlight availability.This panel is suited for applications that require a smaller footprint, making it a favorite for those with RVs, campers, and more!
• [Excellent Performance] 21% High solar cell efficiency. Corrosion-resistant aluminum frame for outdoor use, allowing the panels to last for decades as well as withstand high winds (2400Pa) and snow loads (5400Pa).
• [Multiple Protection] Renogy Wanderer-Li is a 30A PWM solar charge controller that integrates efficient PWM charging to increase battery life and improve system performance. It can prevent the battery from over charge, over voltage, discharge and short circuit, reversed polarity protection.
• [Easy Installation] Pre-drilled holes and Plug&Play cables on the back allow for fast mounting. And it supports 3 types of batteries: lithium batteries, lead-acid batteries, gel batteries.
• [Warranty] 5 year warranty and 24/7 technical support team, contact us through Amazon whatever any questions or concerns you have.

[wpage]

Reviews on connectivity are poor.

[Jeepergeo]

deal of the day... 42" x 20" $101 30 amp

https://camelcamelcamel.com/product/B00BFCNFRM

https://www.amazon.com/gp/product/B00BFCNFRM/

30 Amps would require about 3.3 Volts.