How many amps are charging the battery while inuse, on a sunny day ?

I purchased this system to act as a 'test bed' prior to buying my main dual-axis 2 panel system (Two 250W, 24V 8A panels). It's a monocrystilline 100w panel stated to output 5 amps, 12volts. I see consistent 13~14 volts at 4 amps, and have hit 5 amps on really good days (but 4A are more realistic). As a test item, I had it charging a 73AH Deep Cycle Gel battery from West Marine (the panel came with a 30A PWM charge controller). It worked fine and charged the battery in a matter of short hours ( I have both an amp meter and a volt meter connected to track its output). Previously, I was using two 45W amorphous panels (Harbor Freight) that took up to 4 days to do what this one panel can do in 4 hours. Buy with confidence.

Looking to get a solar option for charging laptops and small electronics in my van (vandweller). Would this work? or need x2?

this kit will work way beyond that as long as you have enough batteries to hook it up to.it can charge your van battery and run 12 volt appliances through your cigarette lighter or run 120 volt appliances with an inverter that can handle the amount of watts you want to use.be careful of sensitive electronics while using a cheap inverter.you may need a sine wave inverter.i would highly recommend a good group of deep cycle batteries.the more batteries the more you can run.check out youtube for lots of answers.hope I was able to help

Can this kit be upgraded to the better controller?

I question the respondents assessment that the charge controller couldn't handle a 10% drop in his batteries. I've had this set up on my boat for 3 years and it works flawlessly. The charge controller is designed for 3 different types of batteries: Gel, AGM, and flooded. He may have chosen the wrong battery type for his controller. It's a simple toggle up and down on the controller but if you don't match your choice to your batteries you will destroy the batteries.

dimensions of the panel

Why is there 4 answers for a physical dimension? The picture shows one, a customer measured his about that, but the spec sheet and seller say a much different number. Please check again.

Brand	Renogy
Material	Aluminum
Product Dimensions	43.58"L x 22.72"W x 2.95"H
Item Weight	14.1 Pounds
Efficiency	High Efficiency
Connector Type	MC4
Included Components	cable
AC Adapter Current	30 Amps
Maximum Voltage	12 Volts
Maximum Power	100 Watts
Special Feature	Lightweight Design
UPC	799475028984
Global Trade Identification Number	00816360020486
Output Voltage	12 Volts
Manufacturer	Renogy
Part Number	107.4, 49.8, 3.5
Item Weight	14.1 pounds
Country of Origin	Thailand
Item model number	KIT-STARTER-100D
Is Discontinued By Manufacturer	No
Size	100W Panel+PWM 30A Controller
Color	with Monocrystalline 100 Watt Solar Panel, 30A LCD PWM Charge Controller, Adaptor Kit, Tray Cables, Mounting Z Brackets
Style	Cables+Mounts
Power Source	Solar Powered
Wattage	100 watts
Item Package Quantity	1
Special Features	Lightweight Design
Batteries Included?	No
Batteries Required?	No
Warranty Description	Power Output Warranty

100 Watt Starter kit

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Description

Specifications

Common Questions