UNDERWOOD Emergency Freezer Backup Power System

Built for real-world emergency backup power.

Designed around keeping freezers running during outages while also supporting hunting cabins, RV setups, camping, and off-grid emergency use.

SYSTEM INCLUDES:
• 12.8V 314Ah LiFePO4 lithium battery
• 40A MPPT solar charge controller
• Pure sine wave inverter
• Heavy-duty 10AWG solar extension cable
• DC breaker protection
• 300W–600W solar charging capability

BEST FOR:
• Freezer backup during outages
• Hunting camp power
• Emergency preparedness
• RV and off-grid use
• Storm recovery power

WHY THIS SYSTEM:
Unlike many all-in-one solar generators, this system uses separate replaceable components for better long-term reliability, expansion, repairability, and battery capacity.

Estimated usable battery storage:
Approximately 4,000Wh

Estimated freezer runtime:
• Small freezer: 2–4 days
• Medium chest freezer: 1–3 days
• Large freezer: around 1–2 days

Actual runtime depends on freezer size, temperature, compressor cycles, and solar conditions.

Curated system pricing may vary slightly based on configuration and shipping.