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renogy|SKU:9870090

Renogy 100W Flex Panel Dual Battery Charging Bundle

Charge Two Battery Banks from One Flexible Panel

Charge two battery banks — House and starter batteries simultaneously
Flex panel mounts anywhere — 248-degree range fits curved roofs
MPPT maximizes solar harvest — Built-in tracking for peak output
Smart alternator compatible — Works with traditional and variable output
Three-phase charging profile — Bulk, boost, and float to 100%
  • FREE System Design Consultation -- Our engineers size your system for your actual consumption
  • FREE Shipping -- Ships free — no surprise freight charges
  • Compatibility Guarantee -- Components pre-vetted to work together

$364.95

Out of stock

In the box

  • 100W flexible solar panel
  • 12V 30A dual battery DC-DC charger with MPPT
Renogy 12V 30A Dual Battery Charging 100W Solar Flex Bundle
Renogy 100W Flex Panel Dual Battery Charging Bundle
$364.95

Charge Two Battery Banks from One Flexible Panel

This bundle delivers a field-tested, grid-independent charging setup that handles your house and starter batteries simultaneously. The 100W flexible panel curves up to 248 degrees for mounting on curved RV roofs, boat decks, or greenhouse surfaces where rigid panels won't fit. The integrated 30A DC-DC charger pulls power from solar, your alternator, or both — with built-in MPPT to maximize harvest. Three-phase charging brings your service battery to a full 100%, then trickles your starter battery so you're never stranded.

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Dual Battery Charging
Built-In MPPT Tracking
3-Phase Smart Charging
248° Flex Range
100W
Solar Panel Output
30A
DC-DC Charge Rate
248°
Maximum Panel Flex
One System, Two Batteries, Zero Guesswork

One System, Two Batteries, Zero Guesswork

The frustration of sourcing a solar panel from one vendor, a charge controller from another, and hoping they actually communicate — that ends here. This bundle is pre-vetted for component compatibility, so the MPPT controller speaks directly to the panel output and both battery banks. Unlike buying random components from a generic marketplace, every piece in this kit is specced to work together out of the box. Your house bank gets full three-phase charging while the starter battery receives trickle charge automatically when the house bank reaches capacity. No wiring mismatches, no voltage conflicts, no crossed fingers.

Mounts Where Rigid Panels Simply Cannot

Mounts Where Rigid Panels Simply Cannot

With a flex range up to 248 degrees, this panel conforms to curved RV roofs, boat decks, and greenhouse surfaces where standard framed panels will not fit. Bypass diodes minimize power loss from partial shade, so you maintain output even when a vent cover or antenna casts a shadow across part of the panel. This off-grid proven design handles low-light conditions that would shut down lesser panels, giving you consistent charging performance throughout the day rather than peak-only output during perfect sun angles.

Dual-Input Charging From Solar and Alternator

Dual-Input Charging From Solar and Alternator

The 30A DC-DC charger pulls power from your solar panels, your vehicle alternator, or both simultaneously. Built-in MPPT tracking ensures you extract every available watt from the 100W panel rather than leaving energy on the table. A voltage-sensitive relay handles smart alternators with variable output voltage without extra wiring adapters, and traditional alternators connect just as easily. Temperature and voltage compensation protect your battery chemistry over the long haul, while isolation circuitry keeps your starting battery separate from the house bank — so a drained house battery never leaves you stranded.

Verify Your Setup

Confirm these three conditions before ordering to ensure this bundle integrates cleanly with your rig.

  • 12V house battery bank configuration
  • Smart or traditional alternator on vehicle
  • Mounting surface accommodates up to 248° flex

Built for Real Off-Grid Use

Wherever standard rigid panels won't mount, this flexible bundle keeps your batteries topped off.

RV & Caravan Roofs
Boat Deck Mounting
Greenhouse Solar Systems
Remote Cabin Builds

Full specifications

At a glance

Dimensions
See product page
Power
100W
Warranty
See product page
Full specifications18 data points across 4 categories

Dimensions

Panel LengthSee product page
Panel WidthSee product page
Panel ThicknessSee product page
Panel WeightSee product page

Power & Performance

Panel Wattage100W
System Voltage12V
DC-DC Charge Rate30A
Maximum Flex Range248 degrees
Charge Controller TypeMPPT
Charging Profile3-phase (Bulk, Boost, Float)
DC Input OptionsSolar only, alternator only, or both
Starter Battery Trickle ChargeYes (via solar when service battery is full)

Materials

Panel ConstructionSee product page
Shade MitigationBypass diodes

Compliance & Warranty

Alternator CompatibilitySmart and traditional alternators
Built-In VSRYes
Protection FeaturesBattery isolation, over-voltage protection
WarrantySee product page

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. If it doesn't meet our standards, it doesn't make the cut.

30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.
Free ShippingShips free on all orders. No minimums, no thresholds, no surprise freight charges at checkout.
Authorized Dealer SupportWe stand behind every product we sell. Warranty claims go through us — not through a faceless ticket queue.
★★★★★
“I mounted this on the curved roof of my campervan — rigid panels were not an option. The dual charging is exactly what I needed. My house bank gets full MPPT charging from the panel while driving, and the starter battery stays topped off automatically. No more dead starter battery after a week parked in the shade. Keeps me self-reliant on the road.”
F
First L.Flagstaff, AZ

Renogy 12V 30A Dual Battery Charging 100W Solar Flex Bundle

Highlights:

Solar Panel

  • Designed for off-grid solar panel system, caravan, RV, boat, Green house solar panel system
  • Bypass diodes minimize power drop caused by shade and ensure excellent performance in low-light environments
  • With a flex range of up to 248 degrees, this panel can meet a wide range of applications where standard panels can be inconvenient to mount, such as curved roofs

30A DC-DC

  • Designed to charge service batteries from two DC inputs—solar only, alternator only, or both
  • Built-in Maximum Power Point Tracking (MPPT) to maximize the solar power.
  • 3-phase charging profile (Bulk, Boost, and Float) ensures your service battery will be accurately charged at the correct voltage levels to 100%.
  • Built-in Voltage Sensitive Relay (VSR) for easy setup with smart alternators.
  • Compatible with smart alternators (with variable output voltage) and traditional alternators
  • Trickle charges the starting battery via solar panels if the service battery is fully charged.
  • Isolation of the starting battery and the service battery
  • Temperature and voltage compensation features prolong battery life and improve system performance.
  • Smart Protection Features: battery isolation, over-voltage protection, battery temperature protection, over-current protection, overheat protection, reverse current protection, solar panel and alternator reverse polarity protection.
  • Compatible with multiple battery types: AGM, GEL, Flooded, and Lithium.
  • Compact with a sturdy design, it was built tough for all conditions.
  • Bluetooth Monitoring Ready! Exclusively available with the BT-2 Bluetooth Module accessory and Renogy DC Home App available on the IOS and Google Play Stores.

Description:

Giving you ultimate charging flexibility, the new dual battery charging solar bundle is the smart way to stay off the grid longer. This 12V 30A dual battery solution not only charges your house battery bank and trickle charges your starter battery bank while on the move, but thanks to the MPPT solar input, you can also charge while parked. If you need more power, you can expand up to 400W of solar input giving you plenty of options. Featuring reliable multi-stage charging and multi-chemistry functionality, the dual battery charging solar bundle has you covered whether you’re using Flooded, Gel, AGM, or Lithium batteries. Now you can unlock monitoring and control features exclusively using the BT-2 Bluetooth Module and Renogy DC Home App (available in both the App Store and Google Play).

 

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Frequently Asked Questions

When you source a panel from one vendor and a DC-DC charger from another, you assume the compatibility risk yourself. This bundle removes that risk — every component is matched to work together. For an RV or boat build where a wiring mistake costs time and frustration, the pre-vetted compatibility has real value. You are paying for a system that works on installation day, not a collection of parts you hope will communicate.
Yes. Off Grid Vault is an authorized dealer for Renogy and every brand we carry. That means warranty claims go through us directly — not through a ticket queue with no accountability. If something fails, you deal with people who understand off-grid systems, not a generic return department. We stand behind every product we ship.
Yes. The 30A DC-DC charger includes a built-in voltage-sensitive relay specifically for smart alternators with variable output voltage. It also supports traditional fixed-output alternators. The three-phase charging profile (Bulk, Boost, Float) is designed to charge accurately to full capacity. For specific LiFePO4 compatibility, contact us for a free system design consultation — our team will confirm the exact charge parameters for your battery bank.
Flexible panels trade some impact resistance for mounting versatility. The 248-degree flex range lets you install on surfaces where rigid panels physically will not fit. Bypass diodes protect against partial shade degradation, and the panel is designed for off-grid applications including RV, boat, and greenhouse use. For permanent roof installations with maximum durability, rigid panels are typically preferred — but for curved or space-constrained mounts, this flex panel is the off-grid proven answer.
That depends on your battery bank capacity, your daily consumption, and available sunlight hours. The 100W panel produces power based on sun conditions, and the 30A MPPT controller maximizes that harvest. With dual-input capability, you also charge from your alternator while driving — so you are not relying on solar alone. For a precise calculation based on your actual setup, request our free system design consultation and we will size it to your numbers.
This bundle includes the 100W flexible solar panel and the 12V 30A dual battery DC-DC charger with MPPT. Wiring, fuses, and mounting hardware for your specific installation are not included, as those vary by vehicle and battery bank configuration. Off Grid Vault never hides required components — if your build needs additional parts, our free system design consultation will identify exactly what you need before you order.
SKU: 9870090 Categories: , Brand:

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. If it doesn't meet our standards, it doesn't make the cut.

30-Day Performance Guarantee If it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days in original packaging.
Free Shipping Ships free on all orders. No minimums, no thresholds, no surprise freight charges at checkout.
Authorized Dealer Support We stand behind every product we sell. Warranty claims go through us — not through a faceless ticket queue.

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About renogy Flexible Solar Panels

renogy is a trusted manufacturer of premium flexible solar panels. OffGridVault is an authorized dealer offering the full renogy lineup with free delivery, price match guarantee, and expert support.

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