Which 12v solar panel

How long will a watt solar panel take to charge a 12V battery? Table — watt solar panel charging time 12 volt batteries What size solar panel do I need to charge a deep cycle battery? Table — Effect of irradiance on solar panels size for battery charging Related questions: Can a watt solar panel run a refrigerator? Resource: Can a watt solar panel power a refrigerator? How many solar panels do I need to run a 12 volt refrigerator?

How long will a 12 volt battery run a refrigerator? Table — How long will a 12 volt battery run a fridge? How many amps does a watt solar panel put out?

Open Circuit Voltage Ocv. Short Circuit Current Isc. Maximum Power Voltage Mpv. Maximum Power Current Mpi. Renogy W. HQST W. WindyNation W. Newpowa W.

Texas Solar W. Glasgow, UK. Chicago, Il. Lancaster, Ca. Annual Fridge Energy Consumption kWh. Amorphous type solar technology uses Silicon in a non-crystalline, random form. It can be deposited onto many different substrates to give effects like flexibility for use in different applications. Crystalline silicon type solar technology refers to monocrystalline and polycrystalline panels.

These panels are created from silicon in a tetrahedral lattice type structure. This structure gives crystalline silicon type solar modules a higher efficiency per square meter than amorphous type modules. The amount of solar panels you require will be determined by the amount of charge that you need to return to your system during the sunlight hours of each day.

If after reading the instructions you are still unsure of how to connect your devices please contact a qualified auto-electrician or REDARC electronics on 08 The wiring size for your system is determined by the overall length of cable involved in the system, and the amount of current drawn over that length of cable.

The amount of current drawn by the system is related to the amount of current your solar panels can output for the cable between the solar panels and the battery, and is related to the amount of load you are planning to use for the cable between the battery and your loads.

Required cable thickness can be easily worked out using our cable size and voltage drop calculator. The type of battery you choose depends on the application for which you are using it. It is recommended that a deep cycle battery be used as an auxiliary battery because generally an auxiliary battery is discharged to a lower level and then recharged as opposed to a starter battery which is generally kept at a particular charge level.

It is important to ensure that your regulator is designed to charge the type of battery you plan to install in your setup. Most regulators will have specific charging profiles for the four different types of automotive batteries commonly used today. It is also important to consider where the battery is mounted. If you plan to have the battery inside a caravan for example, you must get a sealed battery because an unsealed battery will generate harmful gases during charging.

Your best bet is to contact a battery supplier and discuss your requirements with them. A 12V solar panel is designed to output at least enough voltage to charge a 12V battery under worst case conditions low light level, high temperature etc. A 12V battery needs at least This means that in perfect conditions a 12V solar panel may output around 17V or more. If you plug a solar panel, which is generating 17V, straight into your battery it is easy to understand how this can cause damage.

Solar regulators are designed to accept the voltage from the solar panel, and output a voltage that is safe and useable to charge a battery. A good regulator will incorporate a 3 stage charging output.

An 80W solar panel can realistically supply between 4 and 5 Amps on a sunny day, for most of the sunlight hours of the day. Given that there are 24 hours in a day, an 80W panel can effectively run a load of around 1. You want to run the fridge 24 hours a day, and the camp light for 6 hours each night. A W solar panel can supply between 6 and 7.

Given that there are 24 hours in a day, a W panel can effectively run a load of around 2. This depends on the size of your fridge, how long you plan to stay away from any other power sources and the size of your battery bank. Please refer to the Typical Usage Calculator for more accurate information.

This depends on the size of your inverter, how long you plan to stay away from any other power sources and the size of your battery bank. The typical setup for a camper trailer would involve a 80L fridge and a couple of LED lamps. We would recommend 2 x 80W solar panels mounted on the roof of the camper trailer if the space is available. If not we would recommend a solar kit such as a 2 x W Folding Solar panels.

The typical setup for a caravan would involve a fridge, inverter, television, lighting and possibly some other equipment. We would recommend 3 x W solar panels mounted on the roof of the caravan. Typically a camper would require a 40 — 50L fridge and a couple of camp lights. The solar panel calculator will then be able to tell you the minimum and recommended system size, as well as the recommended battery output.

How many panels would I need to charge a ah battery? If you know that you typically can last two days with energy from that battery, that means you consume 80 amp hours a day.

This means you would need three watt solar panels or one watt 12 volt panel to fully recharge your battery on the average day. Should I choose monocrystalline or polycrystalline panels? Polycrystalline panels, which are light blue in color, are less energy and space efficient than monocrystalline panels, but they are also cheaper. Monocrystalline panels, which are darker in color, are more energy efficient. Roof mounted, rigid panels are the most common solar panels on the market and are also the most durable.

Roof mounted panels are ideal if you have consistent energy needs, are installing solar for your home, and want to be able to charge your battery bank at the flip of a switch. Portable solar panel kits can be a great solution for those not ready to install a solar system on their roof, have limited space, want to generate solar while both on the open road or at home, or who have smaller energy needs.

Portable solar panel systems are typically available as folding suitcase panel kits that can be set up on the ground and angled for maximum efficiency. They are lightweight and easy to handle, making them ideal for those travelling. Contrary to popular belief, solar panels are actually more efficient in colder temperatures. When solar modules get too hot, they produce less energy. If it snows, solar panels also typically generate enough heat to melt any snow off the panels.

How do I care for solar panels? One of the great things about solar panels is how little maintenance they require. We encourage you to wash off the panels at least once a year to remove any dirt or other residue that may have collected on the panels.

Typically the heat generated from solar panels will be able to melt the snow from lighter snow storms. As you can see, utilizing 12 volt solar panels are a great way to become more energy independent, save money on utility costs, eliminate the need for gas-powered generators, and ensure reliable access to energy when you need it. Exclusions may apply See Details. What to know when shopping for 12v solar panels When you think of solar panels , many people envision standard 12 volt solar panels that are mounted to the roof.

How do solar panels work? Camper trailers 3.