If I will hardwire it to a fuse tap, what's the fuse amp to add?

The wires that come with it have an inline 10 amp fuse

What size bit do i drill hole

My boat already had the hole ready for it. But it looks like a 7/8" or 15/16" hole should work.

Charger not working after trying all of your troubleshooting. when i press the on switch, the blue led lights for a split second and then goes off?

Have you checked for the correct polarity and checked the voltage from your battery or accessory wire as well with a multimeter, it should be around 12 to 13 volts? Pull and check the inline 10 amp fuse for continuity with a multimeter to eliminate the possibility of a bad fuse. I would then temporarily wire it with different short wire leads to a 12 volt battery to see if it works. If it doesn't I'd assume the board is bad in the unit, if it works fine then you may have a wiring issue somewhere, bad spot in the wiring or a loose connection. First and foremost make sure red positive + goes to the + on the unit, and the black negative - goes to the - on the unit. You cannot have the polarity reversed.

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QC3.0 Dual USB 12V DC Outlet with Touch Switch: 12 Volt Marine Socket Golf Cart USB Port Car Charger Waterproof Power Adapter Cigarette Lighter Mount Fast Charge for Boat Motorcycle ATV RV

Product ID: 176462726

Details

Amperage
3
Brand
Qidoe
Color
1Pcs-Black
Compatible Devices
GPS
Connector Type
Auxiliary
Included Components
power bank

⚡36W Dual QC3.0 Fast Charge

🔵Touch-Sensitive Blue LED Switch

🛥️Universal 12V Marine & Vehicle Compatibility

$20.32

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Description

⚡ Power Up Fast, Stay Connected Anywhere!

CHARGE TWICE AS FAST ⚡ - Dual QC3.0 USB ports deliver up to 4x speed, powering your devices from 0% to 80% in just 35 minutes—never miss a beat on the go.
SAFETY YOU CAN TRUST 🔥 - Advanced protections against overloading, short circuits, and overheating keep your devices and vehicle safe, so you can focus on the road ahead.
PLUG PLAY INSTALLATION 🔧 - Simple wiring with included fuse and 23.6-inch cable means you’re ready to power up in minutes—backed by a 60-day money-back guarantee and 2-year replacement support.
BUILT FOR EVERY ADVENTURE 🛥️ - Waterproof, rugged ABS construction designed for boats, motorcycles, ATVs, RVs, and more—charge confidently wherever your journey takes you.
EFFORTLESS CONTROL VISIBILITY 🔵 - Intuitive touch switch with ambient blue LED lets you power on/off with a simple tap, saving energy and extending device lifespan—even in the dark.

The Qidoe QC3.0 Dual USB 12V DC Outlet is a high-performance, waterproof charging solution designed for marine and automotive use. Featuring dual Quick Charge 3.0 ports delivering 36W total power, a touch-sensitive blue LED switch for easy control, and robust safety protections, it ensures rapid, reliable charging for all USB devices across boats, motorcycles, ATVs, and RVs. Built with durable ABS material and simple installation, it’s engineered for professionals who demand fast, safe, and versatile power on the move.

Specifications

ASIN	B082PNLMDS
Amperage	3
Best Sellers Rank	#21,233 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #362 in Cell Phone Automobile Chargers
Brand	Qidoe
Built-In Media	power bank
Color	1Pcs-Black
Compatible Devices	GPS
Compatible Phone Models	iPhone 14/14 Pro/14 Pro Max/13/13 Pro/13 Pro Max/ 12 /12 Mini /12 Pro/ 12 Pro Max/11 / 11 Pro / 11 pro Max / XS / XS Max / XR / X / 8 Plus / 8 / SE 2020; Galaxy S21/ S20+/ S20/ S10 / S10e / S9+ / S9 / S8 / S8+ / S7 / Note 9 / Note 8; XIAOMI Redmi Note 10/9/8/7 / XIAOMI MI 11 / MI 10 / MI 9 / MI 8 / MI 8 SE / MIX 3 / MIS 2S / MIX2; Huawei Honor 8X, Huawei P50 / P40 / P30 Lite/ P30 pro / Mate 40 / M…
Compatible Power Plug Type	Type A - 2 pin (North American), Type C, Type G
Connectivity Technology	USB
Connector Type	Auxiliary
Current	DC
Current Rating	1.5 A, 10 A, 2 A, 3 A
Customer Reviews	4.6 4.6 out of 5 stars (4,879)
Enclosure Material	Pa66 Nylon, Abs Plastic
External Testing Certification	Não Aplicável
Input Voltage	12 volts
Item Weight	8.53 g
Main Power Connector Type	Auxillary Power Outlet
Manufacturer	Shenzhen GSG Technology Co.Ltd
Mfr Part Number	QD11-7
Model Name	YJ-YJ-SPP010
Model Number	YJ-YJ-SPP010
Mounting Type	Tabletop Mount
Number of Items	1
Number of Power Levels	1
Output Current	3 A
Output Voltage	12 volts
Power Plug	Type C/EF - 2 pin (Europlug/FR-DE Hybrid)
Power Source	Corded Electric
Special Features	Dual Quick Charge 3.0 Fast Outlets, On/Off Touch Switch
Specification Met	CE, RoHS
Total USB 3.0 Ports	2
Total Usb Ports	2
UPC	673869893245
Unit Count	1 Count
Warranty Description	6 Month
Wattage	36 watts
Wired Charging Connector Type	USB Type A

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$20.32

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to British Virgin Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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