SolarFlex Outlast 660i-L: Lithium-Ion Solar Power for 2024 Keystone RV Models

New for 2024! The SolarFlex Outlast 660i-L system brings energy independence to a new level with a Dragonfly Energy® heated Lithium-ion battery and soft-start air conditioner that works seamlessly with solar power. Ideal for remote workers, gamers, and families, this system allows multiple 110V appliances to run simultaneously. Its hybrid inverter/charger enables rapid recharge times when connected to shore power, while advanced monitoring provides real-time visibility of energy collection and usage—ensuring you get the most out of your time off-grid.

SolarFlex Outlast 660i-L Components

  • 2, 30A Solar Roof Ports with MC4 connectors & 10 AWG MPPT solar charging circuits
  • 3, Future Solutions 220-Watt Solar Panels with CS3 splitters
  • 50A Victron SmartSolar MPPT Charge Controller with Bluetooth App
  • 3000W Inverter/Charger with built-in transfer switch (up to 7 inverted outlets)
  • Soft-Start Air Conditioner
  • Zamp Solar Portable Panel Charge Port
  • Victron SmartShunt Battery Monitor with Bluetooth App
  • VE Smart Dongle with Bluetooth App
  • 270Ah Dragonfly Energy Heated Lithium-Ion Battery

This powerful system provides everything needed to stay off-grid longer while keeping essential systems running smoothly.

What You Can Expect

The SolarFlex Outlast 660i-L allows for extended off-grid stays, providing 660 watts of solar energy and a 50A charge controller for rapid battery refills—even in less-than-ideal conditions. This system can power a soft-start air conditioner and run multiple 110V components at the same time, making it ideal for those who require consistent power for work, entertainment, or family needs.

The Dragonfly Energy® heated Lithium-ion battery delivers fast recharging, extended battery life, and optimal performance in all weather conditions. Combined with the advanced monitoring capabilities of the Victron SmartShunt and VE Smart Dongle, owners can make informed decisions about energy use to extend their time off the grid.

*Performance will vary based on sunlight, battery type/size, and power usage.

Go to SolarFlex 660i-L Quick Start Guide

Shop Brands Featuring SolarFlex Outlast 660i-L (2024 Models)

  • Cougar
  • Fuzion

Explore Other 2024 SolarFlex Packages

  • SolarFlex Ready
  • SolarFlex Protect 220
  • SolarFlex Discover 440i
  • SolarFlex Outlast Extreme 1320i-L

Return to SolarFlex Home Page

Expand Your SolarFlex Outlast 660i-L System

The SolarFlex Outlast 660i-L system is designed for flexibility and can be customized at your dealership or after delivery to meet evolving energy needs.

Add Solar Energy Collection + Faster Charging

  • Install 1-2 additional 200W (KRV part# 679074) or 330W (KRV part# 701474) Future Solutions panels.
  • Add a 50A solar charge controller (KRV part# 679078) to the second charge controller prep.
  • Connect Zamp portable solar panels to the pre-wired port for even more energy collection.

Add Power Storage

  • Install a second Dragonfly Energy® Heated Lithium-Ion Battery (KRV part# 653851) with a parallel cable kit, available exclusively through authorized Keystone RV dealers.

Technical Specifications

Solar Panel Mechanical Specifications (Each)

  • Dimensions: 39.37"H x 41.34"W x 1.38"
  • Weight: 29.76 lbs.
  • Frame: Anodized Aluminum Alloy
  • Cable Length: 35.43"
  • Number of Cells: 66 (6x11)
  • Hail Impact Test: 227g steel ball dropped from 1M height
  • Cell Size: 3.27" x 6.59"
  • Cell Type: Monocrystalline
  • Connectors: MC4
  • Encapsulation: EVA
  • Junction Box: IP68

Solar Panel Electrical Specifications (Each)

  • Maximum Power (Pmax): 220W
  • Maximum Power Voltage (Vmp): 35.75V
  • Maximum Power Current (Imp): 6.15A
  • Open Circuit Voltage (Voc): 44.2V
  • Short Circuit Current (Isc): 6.28A
  • Power Tolerance: +/- 3%
  • Maximum System Voltage: 600UL/1000V/IEC
  • Operating Temperature: -40°C to +85°C

Charge Controller Specifications

  • Enclosure: IP43 (electronics), IP22 (connection area)
  • Protections: PV reverse polarity, output short circuit, over-temperature
  • Standard Listings: EN/IEC 62109-1, UL 1741, CSA C22.2

Disclaimer: All information is the most current at the time of publication. Features, floor plans, and specifications are subject to change without notice. Contact your Keystone dealer for the latest product information and specifications.

Disclaimer: The information contained in this article is deemed to be true and accurate at the time of publication. However, due to the evolving nature of our products and services, there may be changes or updates that occur after this article was published. We encourage users to verify the contents and consult with their dealer or Keystone RV for the most current information. If you have any questions or require further clarification, please do not hesitate to contact your dealer or reach out to Keystone RV directly.

Additional Help

Live Chat

Live chat is available Monday - Thursday, 9:00am to 5:00pm ET & Friday 9:00am - 4:00pm ET.

Contact Customer Support

Our owners relations call center is available Monday - Thursday, 9:00am to 5:00pm ET & Friday 9:00am - 4:00pm ET.
Phone (Toll Free): (866) 425-4369

CONTACT US

Find a Service Center

Use our locator to find your preferred service center and speak with factory-trained technicians.

LOCATE DEALER