Cole Hersee Battery Isolators - 1/4" Studs | Del City
Battery Cables & AccessoriesMulti Battery Isolators

Cole Hersee Battery Isolators - 1/4" Studs

Battery isolator with blue heat sink, designed for efficient power management.
Cole Hersee Battery Isolators
Battery isolator with blue heat sink, designed for efficient power management.
Cole Hersee Battery Isolators

Efficient Charging Solutions with Cole Hersee Battery Isolators for Dual Battery Systems

Cole Hersee Battery Isolators ensure reliable performance in vehicles with dual battery systems by preventing the battery with a higher charge from draining into one with a lower charge, helping to avoid electrical system failure. These isolators electrically separate the batteries while allowing them to be charged simultaneously from a single power source, providing efficient and safe charging. Designed for general-purpose use, they are compatible with negative ground alternator systems ranging from 12V to 36V DC and support alternator outputs from 70 to 250 amps.

The amp rating of each isolator corresponds to the maximum alternator output, while the "per leg" rating specifies the maximum current delivered to each battery—half the total alternator rating.

Built with embedded electronic components for protection against adverse conditions and an integral heat sink for effective heat dissipation, these isolators are durable and suitable for tough environments. Please note that Cole Hersee battery isolators are designed for negative ground systems and are not recommended for self-energizing alternators.

  • General purpose Isolators for 12-36V DC negative ground alternator systems.
  • Rated for use with systems ranging from 70 amps to 250 amps output.
  • Embedded electronic components to protect from adverse conditions.
  • Integral heat sink to provide heat dissipation.
  • Download spec sheet here.
948070 Cole Hersee 48070, Battery Isolator, Three 1/4" Studs, 70 Amp (1 MIN) DRAWING
IN STOCK
QTY PRICE UOM
1+ 85.96640 1EA
5+ 78.80250 1EA
948090 Cole Hersee 48090, Battery Isolator, Three 1/4" Studs, 90 Amp (1 MIN) DRAWING
IN STOCK
QTY PRICE UOM
1+ 99.29120 1EA
5+ 91.01689 1EA
Item Description
Price
1+ Ext. Price 5+ Ext. Price
Qty in Package In Stock Add to cart
948070 Cole Hersee 48070, Battery Isolator, Three 1/4" Studs, 70 Amp (1 MIN) DRAWING
85.9664 85.97 78.8025 78.80
1EA
948090 Cole Hersee 48090, Battery Isolator, Three 1/4" Studs, 90 Amp (1 MIN) DRAWING
99.2912 99.29 91.01689 91.02
1EA