Please what is best controller charger & cables to buy- to hook this 100w solar panel into my 1100 watt Krieger inverter & marine deep cycle battery?

There are many brands on the market but we've had a lot of positive feedback on the Victron Energy SmartSolar MPPT charge controllers. They have Bluetooth built-in so from an app on your smartphone/tablet you can monitor the system in detail. With 1x100W panel you could go with the 75/10. If you're thinking of adding more panels you should size a bigger controller. Your panel(s) are going to connect to your MPPT charge controller. Then your controller will connect to your battery bank (via a breaker). This is all DC. Your inverter is separate to the solar and connects to the battery bank to invert DC to AC (probably 110V) In terms of wire size each panel has 17" of 12AWG wire with MC4 connectors built in. Depending on the distance of the wire run you could stay with 12AWG or may have to go to 10AWG for longer distances.

What is the maximum number of these that can be put in parallel?

I believe the maximum number is four. I put three of them in parallel with no problems. Your wires have to be heavy enough to handle the current, and the charge controller must be rated appropriately.

what is the effiency of the panel?

The seller claims they are 23%-25% efficient. There is no way that's true. The most expensive commercial panels are still under 23% efficiency.

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Renogy High Efficiency Flexible Monocrystalline Solar Panel, 100W, IP67 Connector, SPR-OS-FLEX-100

Renogy High Efficiency Flexible Monocrystalline Solar Panel, 100W, IP67 Connector, SPR-OS-FLEX-100

Product ID: 593168908

Details

Brand
Renogy
Efficiency
High
Item Weight
2 kg
Material
Silicon
Product Dimensions
116.6L x 56.9W

⚡100W max power output

🌀Flexible up to 30° bend

🔌IP67 waterproof connector

₨321904

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Description

🔆 Power your future with flexible solar freedom!

WEATHERPROOF DURABLE - IP67-rated connectors ensure seamless operation rain or shine—built to last in any environment.
EFFORTLESS INSTALLATION - Install with adhesives or stainless steel grommets—plus quick-connect cables for plug-and-play convenience.
POWER PACKED PERFORMANCE - Harness 100 watts of clean, efficient energy with cutting-edge Gen II back contact cells.
LOW MAINTENANCE HIGH OUTPUT - Smooth surface resists dirt buildup, keeping your panel spotless and efficient with minimal effort.
FLEXIBILITY MEETS PORTABILITY - Ultra-lightweight design bends up to 30°, perfect for curved surfaces and on-the-go setups.

The Renogy High Efficiency Flexible Monocrystalline Solar Panel delivers 100W of premium solar power through advanced Gen II back contact cells. Its lightweight, flexible design bends up to 30 degrees, making it ideal for unconventional surfaces. Featuring IP67 waterproof connectors and easy installation options, this panel combines durability with high efficiency for reliable off-grid energy solutions.

Specifications

ASIN	B077H45H3F
Brand Name	Renogy
Connector Type	IP67
Customer Reviews	4.2 4.2 out of 5 stars (52)
Efficiency	High Efficiency
Global Trade Identification Number	00816360025917
Included Components	Solar Cables/Connectors
Item Dimensions L x W x H	116.6L x 56.9W x 2H Centimeters
Item Type Name	solar panel
Item Weight	2 kg
Manufacturer	Renogy
Manufacturer Part Number	SPR-OS-FLEX-100
Material Type	Monocrystalline Silicon
Maximum Power	100 Watts
Maximum Voltage	21 Volts
Model Number	SPR-OS-FLEX-100
Number of Items	1
Special Features	High-efficiency Gen II back contact cells, lightweight and flexible design, resistance to power loss via cracking and corrosion

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₨321904

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In stock

Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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