Marcum USB Power Adapter (12V Battery Phone Charger)
850013782475Compatibility:
Power Your Tech on the Ice
Your flasher battery has more juice than you think. The Marcum USB Power Adapter transforms your 12V battery into a high-speed charging station for your smartphone, GoPro, or LED lights.
The "Official" Add-On:
Designed to withstand the cold, this adapter features ruggedized F2 Spade Connectors that slide securely onto your battery terminals alongside your existing power cable. It is the perfect safety backup to ensure you always have a charged phone in an emergency.
📦 Product Specs:
- Brand: Marcum Technologies
- Input: 12V DC (SLA or Lithium)
- Output: 5V USB (Type-A)
- Connector: Standard Spade Terminals
- Compatibility: Universal (Fits all 12V Flasher Batteries)
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Frequently Asked Questions
Will this drain my battery if I leave it plugged in?
Yes, slightly. Even if no phone is plugged in, the LED indicator light (if equipped) and the internal regulator draw a tiny amount of power. It is best practice to unplug the adapter when you are done charging your device to save your battery for fishing.
Can I use this while using my fish finder?
Yes. The spade connectors are "piggy-back" style or can simply be slid onto the same terminal tab as your sonar power cable. You can power your screen and charge your phone simultaneously, though it will drain the battery faster.
Is it waterproof?
No. It is water-resistant, but the USB port is open. It is designed to stay inside your soft pack, battery box, or kayak hatch. Do not submerge it or leave it exposed to heavy rain/snow.