If you have two solar panels do you have to have two separate controlers for two separate batteries?

No, the solar panels cane wired in parallel, and use one charge controller to drive a battery.

can 10wat solar power a laptop

No, a first step to figure if it will power something is read the power supply of your computer of device. Chances are great the computer power supply reads that it consumes more than 65 watts and perhaps up to 100watts (read the "rated at xx watts") . Next step is realize this power rating for solar is over rated and only available at high noon and with zero cloud cover, so it must charge for quite a while to charge a battery to run your laptop. So you really want about a 200W solar panel to power a 100W laptop, assuming you have a battery to store the charge and run the laptop when the sun is not at optimum. Also the laptop is rated at 19v-21v so you need a booster/inverter to either go from 12V to 19V (95% energy efficient) or a 12V to 110V and use your 110v adapter to 19v (80% energy efficient).

Will this keep a 12v car or deep-cycle battery charged? Trying to install IP camera remotely with solar & battery setup

A 10 Watt panel with 6 hours of good sun per day will only provide you 60 watts of energy. At 12Volts that's a replacement power of 5 amps per day. So, if your camera is going to consume more that 5 Amps per day then no it won't work for you. You will also need a charge controller of some sort as well.If you were going to use this as a trickle charger for a battery that doesn't get used every day then maybe it would work for you. But if this is a 24 hours a day operation then I would op for a bigger panel.

what are the dimensions of the panel?

Dear customer,the dimension of the panel is 13.2 x 8.1 x 0.7 inches.Further messsage please feel free to contact us by email,Many thanks.

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☀️ Power Your Freedom, Anywhere, Anytime!

PEACE OF MIND WARRANTY - Backed by a 1-year warranty and responsive customer support for worry-free solar charging.
COMPACT PORTABLE DESIGN - Lightweight 2.06kg panel with pre-drilled holes and a long extension cable for effortless installation anywhere.
BUILT TO BRAVE THE ELEMENTS - Waterproof junction box and corrosion-resistant aluminum frame ensure durability against wind (2400Pa) and snow (5400Pa).
RELIABLE 100 WH DAILY OUTPUT - Harness up to 100Wh under 4 hours of full sun—perfect for 12V battery charging on the go.
VERSATILE OFF GRID POWER SOLUTION - Ideal for RVs, boats, trailers, ATVs, and emergency lighting—empower your adventures with clean energy.

The ECO-WORTHY 25W Monocrystalline Solar Panel delivers a robust 100Wh daily output with high-efficiency cells, housed in a durable waterproof aluminum frame. Designed for versatile off-grid applications like RVs, boats, and trailers, it features a compact form factor with a 39.3-inch extension cable and easy mounting options. Built to withstand harsh weather conditions, this lightweight panel ensures reliable 12V battery charging wherever your lifestyle takes you.

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Brand	ECO-WORTHY
Material	Aluminium
Product Dimensions	42.1L x 32W x 1.7H Centimeters
Item Weight	2.06 Kilograms
Efficiency	High Efficiency
Included Components	Solar Panel Module
AC Adapter Current	1.22 Amps
Maximum Voltage	18 Volts
Maximum Power	22.5 Watts
Special Feature	Waterproof
UPC	780862456770
Global Trade Identification Number	00780862456770
Output Voltage	12 Volts
Manufacturer	ECO-WORTHY
Country of Origin	USA
Item model number	AM-L02M25-1
ASIN	B01IFJ73X4

ECO-WORTHY Solar Panel 25W Monocrystalline Waterproof for RV, Boat, Trailer, ATV, Car or Off-Grid Applications, Charging 12V Battery and Powering 12V Light

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