What do I need to complete my off-grid solar power system ?

You need a solar panel, a charge controller to regulate current, and a deep-cycle battery for storage. For wiring, you will need adapter kit cables (panel to controller) and tray cables (controller to battery) to complete the system.

What does off-grid and on-grid mean ?

On-grid means connected to the power grid. Off-grid means independent of the grid, storing power in batteries for later use, so you are never affected by grid blackouts.

Why is my solar panel under producing ?

Solar panel performance may be hindered for a number of reasons. Most commonly environmental conditions such as indirect sunlight, temperature rise, cloudy sky, and dirt and stain build up on the top glass will cause a reduced power output.

How should I connect solar panels in my electrical circuit (series vs parallel)

Connect in series to increase total voltage (current stays the same), or in parallel to increase total current (voltage stays the same). Combine both for optimum system power output.

How many solar panels do I need ?

First, determine your total power load (Watts × run hours × 1.5-2 safety factor). Size your battery bank based on this capacity, and accordingly decide how many panels or how much power input is needed.

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Renogy Solar Panels 640 Watt N-Type 18BB, 25% High-Efficiency | 2PCS 320W Solar Panels for Homes Rooftops Farms yards sheds Off-Grid Systems, Efficient Power in Less Space, IP68

Renogy Solar Panels 640 Watt N-Type 18BB, 25% High-Efficiency | 2PCS 320W Solar Panels for Homes Rooftops Farms yards sheds Off-Grid Systems, Efficient Power in Less Space, IP68

Product ID: 222373363

Details

Brand
Renogy
Efficiency
High
Item Weight
90.5 pounds
Material
Silicon
Product Dimensions
64.37"L x x

⚡640W total power output

🔋25% high-efficiency N-Type cells

🛡️IP68 waterproof & anti-corrosion

R49496

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Description

☀️ Power your future with efficiency that’s impossible to ignore!

NEXT GEN N TYPE TECH - 18 busbars reduce hotspots and boost durability, delivering up to 25% cell efficiency for longer-lasting performance.
POWER THAT OUTPERFORMS - Generate 3200Wh daily with 20W more per panel than standard 300W models—maximize your energy independence.
PLUG PLAY INSTALLATION - Pre-drilled holes and broad mounting compatibility make setup seamless for rooftops, RVs, farms, and off-grid escapes.
BUILT TO BRAVE THE ELEMENTS - IP68-rated panels with multi-layer encapsulation and anti-corrosion coating ensure reliable power rain or shine.
SMART SAVINGS WITH SOLAR TAX CREDIT - Claim up to 30% back on your solar investment—power your lifestyle and your wallet simultaneously.

Renogy’s 640W solar panel kit features two 320W N-Type monocrystalline panels with advanced 18 busbar technology, delivering up to 25% efficiency and superior temperature tolerance. Designed for durability with IP68 waterproof rating and anti-corrosion coating, these panels generate approximately 3200Wh daily, ideal for homes, farms, and off-grid systems. Easy to install with pre-drilled holes and compatible mounts, plus eligible for a 30% federal solar tax credit, this kit offers a high-performance, space-efficient renewable energy solution.

Specifications

ASIN	B08D644VFN
Amperage Capacity	8.46 A
Best Sellers Rank	#56,571 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #270 in Solar Panels
Brand Name	Renogy
Connector Type	Solar Panel Connector
Customer Reviews	4.4 4.4 out of 5 stars (137)
Efficiency	High Efficiency
Folded Size	Unfoldable
Included Components	Solar Panel
Item Dimensions L x W x H	64.37"L x 34.65"W x 1.38"H
Item Type Name	Renogy Solar Panel
Item Weight	90.5 pounds
Manufacturer	Renogy
Manufacturer Part Number	2 Pieces
Material Type	Monocrystalline Silicon
Maximum Power	320 watts
Maximum Voltage	24 volts
Model Number	2pcs 320W Solar Panels
Number Of Cells	32
Number of Items	2
Number of Packs	2
Output Voltage	24 volts
Special Features	12v solar panel, 24v solar panel, 320W Solar Power Output, Rigid N-type Solar Panel
UPC	810009715887
Unit Count	2 Count
Upper Temperature Rating	185 °F

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R49496

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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