Dual Battery Isolation Kit with Voltage Sensitive Relay (VSR)

• Suitable for 12V Marine, Off-Road Vehicles, RV, 12V Auto & Solar Systems
• 140 Amp Voltage Sensitive Relay for Battery Isolation
• Priority Charging for Starting Battery
• Safe for Alternator Outputs up to 120 Amps
• Fully Automatic, Proven Technology

I received this item on time when promised. The installation couldn't have been easier. Red cable from Positive battery terminal to isolator then Red Cable from Isolator to second battery positive terminal. Ground isolator with black cable to vehicle body or frame. Ground second battery to body or frame and your ready to go. No need to connect alternator to isolator with this product. So far it works perfect!

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Disappointed.

I used this kit to install a dual battery setup on my boat along with a Blue Sea 7650 switch. I ended up using the Blue Sea voltage sensing relay as this one feels cheap and did not make me have confidence in its ability to do the job over the long run. The kit needs to come with at least double the amount of tinned copper lugs (the cable ends that connect to the terminals) because there is simply not enough in this kit. I had to go to my local autoparts store and buy more to complete my install. The same was true with the shrink wrap....simply not enough to do a complete install. I guess they don't expect you to install a switch along with it...but how do they expect you to control the power if you don't install a switch along with it.

In the end I would have saved money if I would have just bought the tinned copper lugs and wire separate.