aFe Power 80-AMP Battery Isolator 12V Solenoid Relay 4 Pin SPST
Isolates a secondary battery with 80 A continuous and 150 A surge handling at 12 V DC
- Overall height6.8834 L x 8.2042 W x 8.7884 H centimeters
- Overall width6.8834 L x 8.2042 W x 8.7884 H centimeters
- Overall length6.8834 L x 8.2042 W x 8.7884 H centimeters
- Product weight0.191 kg
- Prevents primary battery drain with 80 A continuous isolation
- Handles 150 A surge starts for reliable dual-battery operation
- Water-resistant phenolic housing survives harsh vehicle environments
- 100 000 mechanical cycles deliver long service life
- Includes terminals and hardware for direct 12 V installation
80 Amp Battery Isolator for Dual Battery Systems
This 12V continuous duty solenoid relay manages power between two batteries in cars, boats, RVs and motorcycles. It prevents the primary battery from discharging while the engine is off. The unit handles 80 amps continuously with a 150 amp surge rating. It draws less than 1 amp during operation.
Water Resistant Phenolic Housing
The black phenolic plastic body resists water ingress in harsh environments. Red copper binding posts with silver pins ensure heavy current transfers safely. Four large 80 amp terminals connect to the load while four small terminals link to the original power source. The kit includes all attaching hardware for direct installation.
100,000 Cycle Mechanical Life and Thermal Limits
The relay is rated for 100,000 mechanical cycles under normal use. The manufacturer notes the working time could be around continuous four or five hours before a cool-down period is required. It operates on constant 12V DC voltage and isolates batteries automatically when the ignition is turned off.
How it compares
Measured against everything we stock in Batteries, Cords & Power Parts, at today’s prices. Recalculated every night.
- Price $21.99
- Pricier than about 59% of the 100 comparable items (median $17.99).
Specifications
| Product | |
|---|---|
| Brand name | aFe Power |
| Size & build | |
| Overall height | 6.8834 L x 8.2042 W x 8.7884 H centimeters |
| Overall width | 6.8834 L x 8.2042 W x 8.7884 H centimeters |
| Overall length | 6.8834 L x 8.2042 W x 8.7884 H centimeters |
| Product weight | 0.191 kg |
Questions about this item
What continuous and surge current does the 12V SPST relay handle?
The isolator is rated for 80 amps continuous and 150 amps maximum instantaneous current at 12V DC.
What are the exact dimensions and mounting weight of the unit?
It measures 6.8834 L x 8.2042 W x 8.7884 H centimetres and weighs 0.191 kilograms.
How are the four large and four small terminals wired during installation?
Connect the four 80-amp terminals to the load side and the four small terminals to the original power source; the relay activates with the ignition circuit.
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