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Automotive Battery Chargers

Need an automotive battery charger or power management solution? Automotive battery chargers keep batteries charged to capacity with minimal driver intervention. A liftgate charging system boosts the voltage of liftgate batteries so they stay charged, even in the most extreme heavy-duty applications or extreme weather. With an automatic charging relay, you can charge two battery banks from a single source, such as an alternator, while also keeping batteries isolated when not charging.

Protecting your automotive or equipment battery is of the utmost importance. From liftgate trailer battery chargers to automatic charging relays, Waytek offers a wide variety of battery chargers designed to meet OEM specifications for your automotive, equipment and marine applications.
1 - 12 of 31
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Packaged for retail use only. For bulk product, see item 78000B (must be logged in to purchase bulk)
  • Blue Sea 7601 M-Series Automatic Charging Relay
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • The Mini Automatic Charging Relay (M-ACR) is designed to manage the charging current from alternators up to 65 Amps
  • Start Isolation (SI) protects sensitive electronics by temporarily isolating house loads from the engine circuit during engine cranking
  • The compact design allows for three mounting styles: surface, rear, or panel mount
  • Senses charging on two battery banks
  • Pull off and snap on insulating cover
  • LED indicates ACR status
  • Waterproof - rated IP67 for temporary immersion
  • Amperage Operating Current 90mA (Combine), 15mA (Open)
  • Amperage Rating of 65A Continuous or 115A for up to 5 minutes
  • Relay Contact Position: Open (max) 16.0V. Open (10 sec) 12.35V DC. Open (30 sec) 12.75V DC. Combined (30 sec) 13.6V DC
  • Under Voltage lockout @ 9.5V
  • 6 AWG to meet ratings. 1/0 AWG Maximum cable size
  • 1/4"-20 Terminal stud size
Item#:
78000
Manufacturer Item:
7601
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
10
1+
79.2100
EACH
Not packaged for retail use. For retail product, see item 78000
  • Blue Sea 7601 M-Series Automatic Charging Relay - Bulk Packaging
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • The Mini Automatic Charging Relay (M-ACR) is designed to manage the charging current from alternators up to 65 Amps
  • Start Isolation (SI) protects sensitive electronics by temporarily isolating house loads from the engine circuit during engine cranking
  • The compact design allows for three mounting styles: surface, rear, or panel mount
  • Senses charging on two battery banks
  • Pull off and snap on insulating cover
  • LED indicates ACR status
  • Waterproof - rated IP67 for temporary immersion
  • Amperage Operating Current 90mA (Combine), 15mA (Open)
  • Amperage Rating of 65A Continuous or 115A for up to 5 minutes
  • Relay Contact Position: Open (max) 16.0V. Open (10 sec) 12.35V DC. Open (30 sec) 12.75V DC. Combined (30 sec) 13.6V DC
  • Under Voltage lockout @ 9.5V 
  • 6 AWG to meet ratings. 1/0 AWG Maximum cable size
  • 1/4"-20 Terminal stud size
Item#:
78000B
Manufacturer Item:
7601B
Manufacturer:
Blue Sea Systems
Min. Order Qty:
5
Avail #:
0
You must be logged in to order this item. Log in here
 
Packaged for retail use only. For bulk product, see item 78002B (must be logged in to purchase bulk)
  • Blue Sea Systems 7610 SI-ACR Automatic Charging Relay
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Start Isolation (SI) Protects sensitive electronics by temporary isolation of house loads from engine circuit during engine cranking
  • Hermetically sealed contacts/vaporproof
  • Waterproof rated IP67 - temporary immersion for 30 minutes
  • Ignition protected - safe for installation aboard gasoline powered boats
  • Remote LED output indicates relay state away from ACR
  • Supports high-output alternators up to 120 Amps
  • Dual sensing
  • Amperage Operating Current of 175mA (combined) or 15mA (open)
  • Continuous Rating of 120A and a Intermittent Rating of 210A for up to 5 minutes
  • 6 AWG to meet ratings. 1/0 AWG Maximum cable size
  • Relay Contact Position:
    • Combine 30 sec: 13.6V @ 12V or 27.2V @ 24V
    • Combine 90 sec: 13.0V @ 12V or 26.0V @ 24V
    • Open 10 sec: 12.35V @ 12V or 24.7V @ 24V
    • Open 30 sec: 12.75V @ 12V or 25.5V @ 24V
    • Open High: 16.0V @ 12V or 30.0V @ 24V
    • Over Voltage Lockout: 16.0V @ 12V or 32.0V @ 24V
    • Under Voltage Lockout: 9.5V @ 12V or 19V @ 24 V
Item#:
78002
Manufacturer Item:
7610
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
2
1+
114.3700
EACH
Not packaged for retail use. For retail product, see item 78002
  • Blue Sea Systems 7610 SI-ACR Automatic Charging Relay - Bulk Packaging
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Start Isolation (SI) Protects sensitive electronics by temporary isolation of house loads from engine circuit during engine cranking
  • Hermetically sealed contacts/vaporproof
  • Waterproof rated IP67 - temporary immersion for 30 minutes
  • Ignition protected - safe for installation aboard gasoline powered boats
  • Remote LED output indicates relay state away from ACR
  • Supports high-output alternators up to 120 Amps
  • Dual sensing
  • Amperage Operating Current of 175mA (combined) or 15mA (open)
  • Continuous Rating of 120A and a Intermittent Rating of 210A for up to 5 minutes 
  • 6 AWG to meet ratings. 1/0 AWG Maximum cable size
  • Relay Contact Position:
    • Combine 30 sec: 13.6V @ 12V or 27.2V @ 24V
    • Combine 90 sec: 13.0V @ 12V or 26.0V @ 24V
    • Open 10 sec: 12.35V @ 12V or 24.7V @ 24V
    • Open 30 sec: 12.75V @ 12V or 25.5V @ 24V
    • Open High: 16.0V @ 12V or 30.0V @ 24V
    • Over Voltage Lockout: 16.0V @ 12V or 32.0V @ 24V
    • Under Voltage Lockout: 9.5V @ 12V or 19V @ 24 V
Item#:
78002B
Manufacturer Item:
7610B
Manufacturer:
Blue Sea Systems
Min. Order Qty:
5
Avail #:
304
You must be logged in to order this item. Log in here
 
Packaged for retail use only. For bulk product, see item 78003B (must be logged in to purchase bulk)
  • Blue Sea Systems 7611 Battery Link Automatic Charging Relay
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Senses charging on two battery banks
  • Side and bottom knockouts for cable connections
  • Clip-on cover insulates terminal connections
  • Integrated LED indicates ACR status
  • Largest battery bank cannot exceed Group 27
  • Waterproof - rated IP67 for temporary immersion
  • 7/8" (22 mm) stud length to accept multiple cable terminals
  • 1/4" x .032" male quick connect terminals
  • 3/8"-16 (M10) Terminal stud size
  • Amperage Operating Current 75mA @ 12V (Combine), 115mA @ 24V (Combine) and 15mA (Open)
  • Amperage Rating of 120A Continuous and 210A for up to 5 minutes
  • 1/0 AWG Maximum cable size
  • Relay Contact Position;
    • Combine 30 sec: 13.6V @ 12V or 27.2V @ 24V
    • Combine 30 sec: 13.6V @ 12V or 27.2V @ 24V
    • Over Voltage Lockout: 16.0V @ 12V or 32.0V @ 24V
    • Open Low: 12.75V @ 12V or 25.5V @ 24V
Item#:
78003
Manufacturer Item:
7611
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
9
1+
114.3700
EACH
Not packaged for retail use. For retail product, see item 78003
  • Blue Sea Systems 7611 Battery Link Automatic Charging Relay - Bulk Packaging
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Senses charging on two battery banks
  • Side and bottom knockouts for cable connections
  • Clip-on cover insulates terminal connections
  • Integrated LED indicates ACR status
  • Largest battery bank cannot exceed Group 27
  • Waterproof - rated IP67 for temporary immersion
  • 7/8" (22 mm) stud length to accept multiple cable terminals
  • 1/4" x .032" male quick connect terminals
  • 3/8"-16 (M10) Terminal stud size 
  • Amperage Operating Current 75mA @ 12V (Combine), 115mA @ 24V (Combine) and 15mA (Open)
  • Amperage Rating of 120A Continuous and 210A for up to 5 minutes
  • 1/0 AWG Maximum cable size
  • Relay Contact Position;
    • Combine 30 sec: 13.6V @ 12V or 27.2V @ 24V
    • Combine 30 sec: 13.6V @ 12V or 27.2V @ 24V
    • Over Voltage Lockout: 16.0V @ 12V or 32.0V @ 24V
    • Open Low: 12.75V @ 12V or 25.5V @ 24V
Item#:
78003B
Manufacturer Item:
7611B
Manufacturer:
Blue Sea Systems
Min. Order Qty:
5
Avail #:
7
You must be logged in to order this item. Log in here
 
Not packaged for retail use. For retail product, see item 78004
  • Blue Sea Systems 7622 Automatic Charging Relay - Bulk Packaging
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Includes ML-Series Remote Control Contura Switch
  • Automatically manages the charging of two large battery banks
  • Allows paralleling of battery banks for emergency starting
  • 500 Ampere continuous rating to support high-output alternators
  • Magnetic Latch (ML) - ACR draws very low current (<40mA to monitor terminal voltage) in the "ON" or "OFF" states, and draws moderate current for very short time when changing state
  • Dual sensing - senses charge on both battery banks
  • Start Isolation (SI) - can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics
  • Engine Isolation (EI) - can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output
  • LED output to remotely indicate when batteries are combined, isolated, in voltage lockout, or in Start or Engine isolation
  • 3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance
  • 7/8" (22mm) stud length accepts multiple cable terminals
  • Amperage rating of 500A Continuous or 700A for up to 5 minutes
  • Amperage Operating Current of 13mA
  • <7.0A Operating Current when changing state
  • Cranking Rating for 10 sec @ 2500A, 1 min @ 1100A
  • 4/0 AWG Cable Size to Meet Ratings
  • 300A @ 12V DC Live Current Switching
  • 100,000 Switching Cycles
  • Relay Contact Position:
    • Combine 30 sec: 13.5V 
    • Combine 90 sec: 13.0V 
    • Open 10 sec: 12.35V 
    • Open 30 sec: 12.75V 
    • Open High: 16.2V 
Item#:
78004B
Manufacturer Item:
7622B
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
2
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  • Blue Sea Systems 7650003 Add-A-Battery Kit
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Adding a second battery to the electrical system prevents the unintended discharge of the engine start battery
  • Primarily designed for boats with alternator output of 120A or less
  • Simple way to control the charging and battery switching of two battery banks
Item#:
78006
Manufacturer Item:
7650003
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
7
1+
123.3000
EACH
  • Blue Sea Systems 7820B Sure Eject Cover
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Sure Eject cover in yellow
  • Optional color coded cover to match most applications
  • All covers work with both 78019 (20A) and 78018 (15A) Sure Eject 120V Models
  • Width: 3.4" (86.4mm)
  • Open Height: 6.5" (165.1mm) 
  • Closed Height: 4.7" (119.4mm)
  • Depth: 1.1" (28mm)
Item#:
78011B
Manufacturer Item:
7820B
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
9
1+
32.9560
10+
26.3648
50+
22.4700
EACH
  • Blue Sea Systems 7821B Sure Eject Cover
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Sure Eject cover in red
  • Optional color coded cover to match most applications
  • All covers work with both 78019 (20A) and 78018 (15A) Sure Eject 120V Models
  • Width: 3.4" (86.4mm)
  • Open Height: 6.5" (165.1mm) 
  • Closed Height: 4.7" (119.4mm) 
  • Depth: 1.1" (28mm)
Item#:
78012B
Manufacturer Item:
7821B
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
5
1+
32.9560
10+
26.3648
50+
22.4748
EACH
  • Blue Sea Systems 7822B Sure Eject Cover
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Sure Eject cover in black
  • Optional color coded cover to match most applications
  • All covers work with both 78019 (20A) and 78018 (15A) Sure Eject 120V Models
  • Width: 3.4" (86.4mm)
  • Open Height: 6.5" (165.1mm) Open
  • Closed Height: 4.7" (119.4mm) Closed
  • Depth: 1.1" (28mm)
Item#:
78013B
Manufacturer Item:
7822B
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
9
1+
32.9560
10+
26.3648
50+
22.4700
EACH
  • Blue Sea Systems 7823B Sure Eject Cover
  • Category: Battery Chargers
  • Manufacturer: Blue Sea Systems
  • Sure Eject cover in white
  • Optional color coded cover to match most applications
  • All covers work with both 78019 (20A) and 78018 (15A) Sure Eject 120V Models
  • Width: 3.4" (86.4mm)
  • Open Height: 6.5" (165.1mm) Open
  • Closed Height: 4.7" (119.4mm) Closed
  • Depth: 1.1" (28mm)
Item#:
78014B
Manufacturer Item:
7823B
Manufacturer:
Blue Sea Systems
Min. Order Qty:
1
Avail #:
9
1+
32.9560
10+
26.3648
50+
22.4748
EACH
1 - 12 of 31
View:
When it comes to automotive battery chargers and charging components, Waytek is the industry leader. Whether you need an Automatic Battery Charging Relay, an Add-A-Battery Kit, or a Liftgate Trailer Battery Charger, Waytek has a battery protection solution to meet your needs. Below, we list a few relevant products that can help you improve battery management and protection.

  • Battery Isolators
  • Battery Separators
  • Battery Converters