
Vevor Battery Isolator Kit 12V 140A Dual Battery Isolator with Manual and Automatic VSR
Best price now
Prices are checked against each store and labelled with when.

Prices are checked against each store and labelled with when.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Vevor dual battery isolator is a 140A voltage-sensitive relay for 12V systems that charges a main and an auxiliary battery from one alternator. It runs in automatic mode, linking the batteries when charging voltage rises and separating them when it drops, or in manual mode where you control the link yourself. A built-in LCD shows both battery voltages, and an adjustable delay cuts relay chatter from short voltage dips. It works with lithium and lead-acid batteries and is sold as a kit with cables, connectors and mounting hardware. Compared with bare VSR relays, it adds the display and manual override; it is a relay-based isolator, not a DC-DC charger, so it suits vehicles with standard charging systems rather than smart alternators that need a boost charger.
In stockReturn policy
The Vevor dual battery isolator kit is made for 12V systems. It manages charging between a main battery and an auxiliary battery. It works with lithium and lead-acid batteries.
It has manual and automatic (VSR) operating modes. A built-in LCD screen shows the real-time voltage of both batteries. Adjustable delay timing helps reduce frequent switching.
The housing is shockproof and dustproof. The kit is intended for UTVs, RVs, trucks, boats and off-grid systems. It includes cables, connectors and installation accessories.











