API Battery Isolators

BI2-100A 100-AMP Battery Isolator - API Marine
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BI2-130A 130-AMP Battery Isolator - API Marine
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BI2-165 165-AMP Battery Isolator - API Marine
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BI2-200 200-AMP Battery Isolator - API Marine
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BI2-240 240-AMP Battery Isolator - API Marine
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BI2-75 75-AMP Battery Isolator - API Marine
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BI3-130 130-AMP Battery Isolator - API Marine
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BI3-165 165-AMP Battery Isolator - API Marine
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API Marine

These automatic solid state devices allow you to connect your engine alternator directly to both batteries or multiples of batteries without fear of overcharging or of one higher charged battery discharging into the other lower charged battery.

Using this unique device, batteries are electrically isolated from each other. When your engine(s) is running, both batteries are being charged automatically, independent of each other.

BI2-100A 100-AMP Battery Isolator - API Marine
  • 2 Batteries, 1 Alternator
  • Negative Ground
  • 4.5"L x 4.55"W x 2.52"H (114mmL x 116mmW x 64mmH)
  • I/O studs 1/4-28 thread
  • Blue aluminum finned heat sink
  • press fit iodes
  • welded connections
  • Can be wired for sense
  • E-terminal for e
  • BI2-130A 130-AMP Battery Isolator - API Marine
  • 2 Batteries, 1 Alternator
  • Negative Ground
  • 6.5"L x 4.55"W x 2.52"H (165mmL x 116mmW x 64mmH)
  • I/O studs 5/16-18 thread
  • Blue aluminum finned heat sink
  • press fit diodes
  • welded connections
  • Can be wired for sense
  • E-Terminal for
  • BI2-165 165-AMP Battery Isolator - API Marine
  • 2 Batteries, 1 Alternator
  • Negative Ground
  • 9.0"L x 4.55"W x 2.52"H (229mmL x 116mmW x 64mmH)
  • I/O studs 5/16-18 thread
  • Blue aluminum finned heat sink
  • press fit diodes
  • welded connections
  • BI2-200 200-AMP Battery Isolator - API Marine
  • 2 Batteries, 1 Alternator
  • Negative Ground
  • 12.5"L x 4.55"W x 2.52"H (318mmL x 116mmW x 64mmH)
  • I/O studs 5/16-18 thread
  • Blue aluminum finned heat sink
  • press fit diodes
  • welded connections
  • BI2-240 240-AMP Battery Isolator - API Marine
  • 2 Batteries, 1 Alternator
  • Negative Ground
  • 12.5"L x 4.55"W x 2.52"H (318mmL x 116mmW x 64mmH)
  • I/O studs 3/8-16 thread
  • Blue aluminum finned heat sink
  • press fit diodes
  • welded connections
  • BI2-75 75-AMP Battery Isolator - API Marine
    BI2-75 75-AMP Battery Isolator - API Marine
  • 2 Batteries, 1 Alternator
  • Negative Ground
  • 4.5"L x 4.55"W x 2.52"H (114mmL x 116mmW x 64mmH)
  • I/O studs 1/4-28 thread
  • Blue aluminum finned heat sink
  • press fit diodes
  • welded connections
  • BI3-130 130-AMP Battery Isolator - API Marine
  • 3 Batteries, 1 Alternator
  • Negative Ground
  • 6.5"L x 4.55"W x 2.52"H (165mmL x 116mmW x 64mmH)
  • I/O studs 5/16-18 thread
  • Blue aluminum finned heat sink
  • press fit diodes
  • welded connections
  • BI3-165 165-AMP Battery Isolator - API Marine
    BI3-165 165-AMP Battery Isolator - API Marine
  • 3 Batteries, 1 Alternator
  • Negative Ground
  • 9.0"L x 4.55"W x 2.52"H (229mmL x 116mmW x 64mmH)
  • I/O studs 5/16-18 thread
  • Blue aluminum finned heat sink
  • press fit diodes
  • welded connections
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