Satisfy your power hungry audio system with high performance batteries and power cells. Find batteries and accessories including terminals, power supplies, isolators and relays.

Install Bay Car Batteries & Power

Install Bay Capacitors
Install Bay Battery Accessories
Install Bay Battery Isolators & Relays
Install Bay Amplifier Wiring Kits
Install Bay Power & Ground Wire
Install Bay 12 Volt Power Supplies

Top Sellers in Install Bay Car Batteries & Power

4 Gauge (7/8" Mounting Hole) Waterproof Firewall Grommet

• 4 Gauge Firewall Grommet
• IP68 Waterproof Rating
• Protects Cables When Installing Through a FIrewall
• Sold Individually

$1.99

IN STOCK

500 Amp Battery Isolator and Relay

• Battery Isolator and Relay
• 500 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

$51.99

IN STOCK

200 Amp Battery Isolator and Relay

• Battery Isolator and Relay
• 200 Amp
• Prevents Primary Battery Discharge
• Maximizes the Current Transfer
• Extends Battery Life
• Universal 12V Applications

$42.99

IN STOCK

3/4in Hole Plug Flush Black 1in Head Diameter - 100PK

• FEATURE 1
• FEATURE 2
• FEATURE 3
• FEATURE 4
• FEATURE 5
• FEATURE 6
• FEATURE 7

$6.99

SPECIAL ORDER

Ships at Later Date

1" Hole Plug Flush Black 1 7/16" Head Diameter - Pack of 100

• 1" Hole Plug
• Mounts flush
• Color: Black
• 100 per package

$6.99

IN STOCK

Only 1 Left!

7/8" Hole Plug Flush Black 5/32" Head Diameter - Pack of 100

• 7/8" Hole Plug
• Mounts flush
• Color: Black
• 100 per package

$12.99

IN STOCK

Only 1 Left!

55 AMP 12V Power Supply

• 55 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 780 Watts

$179.99

SPECIAL ORDER

Ships at Later Date

75 AMP 12V Power Supply

• 75 Amp Power Supply
• Built-In 4 Stage Smart Charger
• Overtemp Protection
• Deck Mounted Converter
• Max Output: 1065 Watts

$244.99

AVAILABLE

Ships at Later Date