Flex Adventures 12V Automatic Changeover Switch | AC Priority | Fridge Battery Protection | Plug & Play

Mains Power Available? Your Battery Thanks You.

The Flex Adventures 12V Automatic Changeover Switch is a compact, plug-and-play power management device that ensures your 12V camping fridge always runs from the most efficient power source available — automatically. When mains power is detected (at a campsite, garage, or caravan park), it instantly switches the fridge to run off the converted AC supply. When you disconnect and head off-grid, it seamlessly reverts to your 12V auxiliary battery — all without interrupting the fridge’s operation or requiring any manual intervention.

The result: your auxiliary battery is preserved whenever mains power is available, your fridge never misses a beat during the switchover, and your food stays cold from driveway to campsite and back again. Simple inline installation integrates directly with your existing 12V fridge wiring — no rewiring, no complexity.

🔑 Key Features

• Fully Automatic AC Priority — Detects mains power and switches fridge to AC supply; no manual intervention required
• Seamless Battery Backup — Instantly reverts to 12V battery when mains is disconnected; fridge operation uninterrupted
• Auxiliary Battery Protection — Prevents unnecessary battery drain whenever an external AC source is available
• Plug & Play Installation — Simple inline installation with existing 12V fridge wiring; no rewiring required
• 10A Internal Fuse — Replaceable fuse protects fridge electronics from power surges
• Compact Form Factor — Easy mounting inside vehicle compartments, caravans, or off-grid power setups
• Universal Fridge Compatibility — Works with all Flex Adventures 12V fridge-freezer models

📐 Specifications

• SKU: FLEX-ACOS12V
• AC Input: 220V/240V AC (mains power)
• DC Input: 12V DC (auxiliary battery)
• Regulated Output: 12V DC (AC priority over DC)
• Fuse: 10A internal replaceable fuse
• Operation: Fully automatic sensing and switching
• Voltage Compatibility: 12V systems only — NOT compatible with 24V
• Installation: Inline plug-and-play

🚗 Compatibility

Compatible with all Flex Adventures 12V fridge-freezer models including the TW75, TW95, TA45, TA55, NCF55, K.I.D 75, K.I.D 95, FS40, ST45, CF8, CF15, D30, and R85S. Also compatible with most other 12V portable fridges. Available at Advanced 4x4 or any of our authorised fitment centres nationwide.

⏳ Lead Time

Please allow 14 business days for production/sourcing if stock is not immediately available at the supplier.

Flex Adventures accessories are trusted by South African overlanders and off-road enthusiasts for their quality, reliability, and innovation. The 12V Automatic Changeover Switch — smarter power management, effortless battery protection.