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The ACOPower Dual Battery Isolator Kit lets your vehicle's alternator charge an auxiliary battery while the engine runs, then separates the two batteries when the engine is off. You can run a fridge, lights, a winch or camping gear from the second battery without worrying about draining the battery you need to start the vehicle.
The 12V smart isolator handles 200 amps continuously. It connects the batteries automatically when it sees charging voltage between 13.5V and 16V and disconnects them when voltage drops to 12.5V, with a 5 second delay to avoid switching on brief voltage changes. An emergency button links the auxiliary battery to help start the engine if the starting battery goes flat.
The isolator carries 200 amps continuously, enough for most alternators, and comes with a 200A fuse for the cable run.
It connects at 13.5V to 16V after a 5 second delay and disconnects at 12.5V, immediately if voltage drops below 12.5V. Over-voltage protection operates at 16V.
Press the emergency button to combine the batteries and start the engine from the auxiliary battery when the starting battery is low.
At 6 x 5.8 x 1.6 inches and 694 g, it fits in tight engine bays and battery boxes. It detects system voltage automatically when powered on.
Overlanding and off-road. Power a fridge, lights and a compressor from a second battery in a Jeep, truck or UTV.
RVs and vans. Charge the house battery from the engine while driving.
Boats. Keep the starting battery isolated from house loads.
Work trucks. Run inverters and tools without risking a dead starting battery.
Versus wiring batteries in parallel. Parallel batteries drain together, so loads can leave you unable to start. The isolator keeps them separate when the engine is off.
Versus DC to DC chargers. A DC to DC charger provides a multi-stage charging profile for lithium and works better with smart alternators. An isolator is simpler and lower in cost for lead-acid auxiliary batteries.
This may be a good fit if
When system voltage is between 13.5V and 16V for 5 seconds, which normally means the engine is running and the alternator is charging.
At 12.5V after 5 seconds, or immediately below 12.5V.
No. This kit is designed for 12V systems.
No. Mount it where it will stay dry.
The ACOPower Dual Battery Isolator Kit charges your auxiliary battery from the alternator and keeps your starting battery ready. At Outbound Power, we help customers choose the right parts for their solar and battery systems. If you have questions, our team is happy to help.
ACOPOWER Dual Battery Isolator Kit Specifications |
|
|---|---|
| Model | HY-IS200A-12V |
| Working Voltage | 12V |
| Continuous Current | 200A |
| Automatic Connection | 13.5V to 16V (5 second delay) |
| Automatic Disconnection | 12.5V (5 second delay), immediate below 12.5V |
| Over-Voltage | 16V |
| Dimensions | 152 x 147 x 40 mm (6 x 5.8 x 1.6 in) |
| Weight | 694 g (1.5 lbs) |
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