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 SunPower Flexible 100 Watt Monocrystalline Solar Panel

Renogy SunPower Flexible 100 Watt Monocrystalline Solar Panel

Product ID: 567865837

Details

Brand
Renogy
Efficiency
High
Included components
Solar
Item weight
2 kg
Material
Silicon

⚡100W max power output

🔄30° flexible panel design

🛡️corrosion & crack resistant

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VT134509

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Description

⚡ Flex your power with the solar panel that bends but never breaks!

BUILT TO LAST - SunPower’s Gen II back contact cells resist cracking and corrosion, ensuring peak output over time.
PLUG PLAY READY - Standard MC4 quick-connect cables and easy adhesive or grommet mounting for hassle-free setup.
BEND WITHOUT BREAKING - Flexible up to 30°, perfect for curved surfaces and dynamic installations.
POWERHOUSE PERFORMANCE - Harness 100 watts of clean, high-efficiency solar energy wherever you go.
FEATHERWEIGHT DURABLE - Ultra-light polymer build at just 4.4 lbs for effortless transport and rugged use.

The Renogy SunPower Flexible 100 Watt Monocrystalline Solar Panel combines cutting-edge Gen II back contact cells with a lightweight, polymer design that flexes up to 30 degrees. Delivering top-tier power output and superior durability against cracking and corrosion, it’s engineered for easy installation with MC4 connectors and versatile mounting options. Ideal for professionals seeking reliable, portable solar energy solutions that keep pace with an active, eco-conscious lifestyle.

Specifications

ASIN	B077H45H3F
ASIN	B077H45H3F
Brand Name	Renogy
Connector Type	MC4
Customer Reviews	4.4 4.4 out of 5 stars (47)
Customer reviews	4.4 4.4 out of 5 stars (47)
Date First Available	7 June 2019
Efficiency	High Efficiency
Global Trade Identification Number	00816360025917
Included Components	Solar Cables/Connectors
Is Discontinued By Manufacturer	No
Item Type Name	solar panel
Item Weight	2 kg
Item model number	SPR-OS-FLEX-100
Manufacturer	SunPower
Manufacturer	SunPower
Manufacturer Part Number	SPR-OS-FLEX-100
Material Type	Monocrystalline Silicon
Maximum Power	100 Watts
Model Number	SPR-OS-FLEX-100
Product Dimensions	116.59 x 56.9 x 2.03 cm; 2 kg
Unit Count	1 Count

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VT134509

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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