ALL STAR TRUCK PARTS ASTPISO140A Battery Isolator Voltage Dual 12V 140-AMP Sensitive Relay Vsr Pro 140DUAL

( Brand: All Star Truck Parts ), ( Manufacturer Part Number: ASTPISO140A ), ( Part Type: Battery Amplifier ), ( Measurement System: Imperial, Metric ), ( Contact Material: Copper ), ( Contact Current Rating: 140.0 ), ( Contact Type: Normally Open ), ( Connector Type: Screw ), ( Coil Voltage: 12.0 ), ( Customer Package Type: Standard Packaging ), ( Minimum Switching Voltage: 13.3 ), ( Operation Mode: Automatic ), ( Mounting Type: Surface Mount ), ( Upper Temperature Rating: 105.0 ), ( Package Dimensions Lxwxh: 12.17x8.46x3.07 Inches ), ( Weight: 4.21 Pounds )

Review ALL STAR TRUCK PARTS 12v 140dual Battery Isolator Voltage Sensitive Relay Vsr Pro

The STAR ASTPISO140A 12V 140AMP Dual Battery Isolator Voltage Sensitive Relay (VSR Pro 140) is a high-performance battery management system designed to efficiently charge and maintain two 12V batteries while preventing overcharging and deep discharge. This versatile device is ideal for various applications, including RVs, boats, solar systems, and other off-grid power setups.

The VSR Pro 140 is equipped with two heavy-duty, 140-amp voltage sensitive relays that automatically switch between the charging source and the batteries based on their voltage levels. When the float voltage is reached, the relays disconnect the charging source to prevent overcharging, ensuring optimal battery health and longevity. Conversely, when the battery voltage drops below a certain threshold, the relays connect the charging source to the batteries, allowing for a timely recharge.

The relay contacts are made of gold-plated, corrosion-resistant material to ensure reliable performance under various temperature and load conditions. The integrated diodes allow for reverse polarity protection, preventing damage to the charging source or batteries in case of incorrect connection.

The VSR Pro 140 features a user-friendly 4-position select switch that allows you to manually override the automatic charging sequence. The switch allows you to select between charging only the house batteries, charging only the starting batteries, charging both batteries, or disconnecting the charging source entirely.

This battery isolator also comes with a built-in LED indicator that displays the charging status, making it easy to identify whether the system is charging, floating, or disconnected. The compact, weather-resistant design with a powder-coated aluminum housing ensures durability and reliability, even in harsh environments.

In summary, the STAR ASTPISO140A 12V 140AMP Dual Battery Isolator Voltage Sensitive Relay (VSR Pro 140) is a powerful and versatile battery management system that effectively manages the charging and discharging of two 12V batteries. Its automatic voltage sensing, gold-plated relays, reverse polarity protection, user-friendly switch, and LED indicator make it an essential tool for various off-grid power applications.

The Startech AstroPROS AP140A 12V 140A Dual Battery Isolator Voltage Sensitive Relay (VSR Pro 140 Amp Dual) is a charging accessory designed to isolate and charge secondary batteries using the voltage drop method. Here are some pros and cons that may help you make an informed decision:

1. Voltage Sensitive: The VSR Pro 140 Amp Dual is voltage sensitive, which means it only engages when the main battery voltage drops below a certain level, preventing overcharging of the secondary battery.

2. Dual Output: This device provides two independent charging circuits, allowing you to charge two secondary batteries simultaneously.

3. Protective Circuit: The VSR Pro 140 Amp Dual features a protective circuit that automatically disconnects the secondary battery when the main battery voltage rises above a certain level, preventing reverse polarity connection and overcharging.

4. Easy Installation: The device comes with easy-to-follow instructions and requires minimal wiring, making it a great option for DIYers.

5. Durable Construction: The VSR Pro 140 Amp Dual is built with high-quality components and features a robust construction, ensuring reliable performance and long-lasting use.

1. Limited Charging Current: This device can only supply a maximum charging current of 140 Amps, which may not be sufficient for high-power applications.

2. Size: The VSR Pro 140 Amp Dual is relatively large and may not fit in tight spaces.

3. Manual Override: The device does not come with an automatic override feature, meaning you will need to manually disconnect the secondary battery when the main battery voltage rises above the preset level.

In conclusion, the Startech AstroPROS AP140A 12V 140A Dual Battery Isolator Voltage Sensitive Relay (VSR Pro 140 Amp Dual) is a reliable and effective charging accessory for applications where you need to charge a secondary battery using the voltage drop method. Its voltage sensitivity, protective circuit, and easy installation make it a great option for RVs, marine applications, and other off-grid systems. However, its limited charging current and manual override may not be suitable for high-power applications or those who prefer an automatic override feature.

If you are looking for a charging accessory with a higher charging current and automatic override feature, you may want to consider other options. However, if you are satisfied with the charging current and prefer a manual override, the VSR Pro 140 Amp Dual is a solid choice.

Details:

Kit includes: 12v 140amp Smart Battery Isolator with mounting screws. Water resistant. If either battery is receiving a charge, Installation kit Specifically designed for RV Boats.

When the engine is Started, Starting and auxiliary batteries are separated Allowing only battery to be charged. Use for dual battery applications. Perfect for house and Starter battery applications in power-sports. Especially important for vehicles with winches, large stereo systems, cab heaters,light bars and accessories electrical demand.

Uses existing wiring in vehicle, No voltage drop. Negative Marine type battery clamp. The smart isolator is also Dual Sensing which senses the charge of both batteries. 8.5mm x 6000mm Red Cable with two 8x 5/16 connectors.

A smart isolator is the ultra-simple and most technologically advanced method of automatic battery isolation. 10mm x 600mm Black Cable with two 4x 5/16 connectors. This automatic relay distributes charging amperage between two batteries. A battery charger is connected to the auxiliary battery; relay will engage and charge both batteries.

Positive Marine type battery clamp. The Small size and rugged construction of these units Allow for quick simple installation even the most novice Dyer. The battery isolator is surge protected, keeping your vehicle and safe from unexpected surges. This is indicated by the red light in top LH corner being illuminated.

Copper lugs 6 5/16, copper 1/2, Red heat shrink 20mm x 35mm, Cable ties 4.5mm 30mm, Fully automatic priority charging for main battery.

part #: astpiso140a prices

• $22.50-$115.97

specifications baterchar:

• brand: All Star Truck Parts
• mpn: Astpiso140a
• part type: Battery Amplifier
• measurement system: Imperial, Metric
• contact material: Copper
• contact current rating: 140.0
• contact type: Normally Open
• connector type: Screw
• coil voltage: 12.0
• customer package type: Standard Packaging
• minimum switching voltage: 13.3
• operation mode: Automatic
• mounting type: Surface Mount
• upper temperature rating: 105.0
• package dimensions lxwxh: 12.17x8.46x3.07 Inches
• weight: 4.21 Pounds

shipping baterchar:

• service: Standard
• type: Fixed
• cost: $0.00
• transit: 4-10 Days
• class: Standard

returns baterchar:

• policy: No Returns

general baterchar:

• Consumer Electronics > Multipurpose Batteries Power > Battery Chargers
• condition: New

seller baterchar:

• city: Casper, Wyoming
• # reviews: 0
• rating: 0.0%

offer baterchar:

• sold: 0
• Started: May 26, 2025
• quantity: 4
• availability: In Stock
• options: Ship-to-home

payments baterchar:

• other
• credit card: Mastercard
• wAllet: Google-pay

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