VoltMaster Battery Equalizer - 24 Volt Input to 12 Volt Output / 100 Amp

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Description

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The Vanner 66-100 provides regulated 12V power from a 24V electrical system for commercial vehicles, marine systems, and alternative-energy applications. It helps prevent the battery imbalance that occurs when 12V loads are powered from only one battery in a 24V series bank. With automatic operation, greater than 96% efficiency, and a 100A output rating, it supports high-demand 12V loads while helping extend battery life.

KEY FEATURES

• Supplies 12V DC power from a 24V battery system
• Provides up to 100A of 12V output
• Automatically balances two series-connected 12V batteries
• Helps reduce battery overcharging and undercharging
• Greater than 96% efficiency
• Automatic operation with no user controls required
• Supports momentary surge loads through the lower battery
• Can be paralleled with compatible Vanner equalizers for greater output capacity
• UL Recognized
• Anodized aluminum enclosure
• Operating-status indicator light
• Electronically protected against reverse-polarity damage
• Non-user-serviceable construction

TECHNICAL SPECIFICATIONS

• Manufacturer: Vanner
• Model: 66-100
• Product series: VoltMaster 66 Series
• Product type: Battery equalizer
• Input voltage range: 20-32 VDC
• Maximum input current at 24VDC: 53A
• Output voltage: One-half of input voltage, ±2% minus 50mV
• Output current: 0-100A at 12VDC
• Efficiency: Greater than 96%
• Standby current at 28.4V: 17mA nominal
• Operating temperature: -40°C to 75°C (-40°F to 167°F)
• Storage temperature: -54°C to 95°C (-65°F to 203°F)
• Weight: 6.3 lb
• Dimensions: 9.8 x 8.5 x 2.5 in.
• Terminal stud size: 5/16-18
• Maximum terminal torque: 120 in-lb
• Serviceability: Not user serviceable
• Recognition: UL Recognized

APPLICATIONS

• Transit buses
• Private coaches
• Tour and charter buses
• Heavy trucks
• Off-highway equipment
• Marine electrical systems
• Alternative-energy systems
• Solar-powered homes
• Dual-voltage 24V/12V systems
• High-current 12V lighting, communications, controls, and accessories

IDEAL FOR

• 24V vehicles requiring high-capacity 12V accessory power
• Systems using two equal-capacity 12V batteries or battery banks in series
• Applications where tapping one battery would cause charge imbalance
• Installations replacing dual-alternator or multiple-charger arrangements
• Systems requiring up to 100A of continuous 12V output
• Commercial and fleet equipment operating in demanding environments

PROTECTION FEATURES

• Electronic current limiting during overload conditions
• Electronic reverse-polarity protection
• Automatic output reduction as battery imbalance increases
• Automatic shutdown if either battery falls below approximately 8V
• Anodized enclosure helps protect against salt, fungus, dust, water, fuel vapors, and common vehicle fluids
• Indicator light assists with operating-status checks

SYSTEM COMPATIBILITY

• Designed for nominal 24V systems made from two 12V batteries or battery banks connected in series
• Battery A and Battery B should have the same amp-hour capacity
• Connects to +24V, +12V midpoint, and ground
• Compatible Vanner Family 1, Family 3, Family 4, and Family 5 equalizers may be operated in parallel
• Suitable for alternator-charged, generator-supported, and solar-charged 24V systems
• Both 12V batteries must be above 8V for the equalizer to turn on

CHECK BEFORE ORDERING

• Confirm the system is nominally 24V and has an accessible 12V midpoint.
• Confirm the required 12V load does not exceed 100A.
• Verify that both 12V batteries or battery banks have the same amp-hour capacity.
• Do not use the unit as a stand-alone 24V-to-12V converter without the required +24V, +12V, and ground battery connections.
• Install properly rated fault-protection devices between the equalizer and the batteries.
• The manual specifies a 125A fuse for F1 and an 80A fuse for F2 for the 66-100 model.
• Use 90°C-rated cable sized to keep voltage drop within the manual’s limits.
• Mount close to the batteries on a flat surface.
• Vertical mounting with terminals facing downward is recommended.
• Protect the unit from rain, high-pressure washing, battery acid, and battery fumes.
• Do not install in a zero-clearance compartment or in a compartment containing batteries or flammable materials.
• Do not connect more than one conductor to each terminal post.
• Do not exceed 120 in-lb of torque on the connection studs.

WARRANTY INFORMATION

• North American limited warranty
• Two years from the date of installation or two and one-half years from the date of manufacture, whichever is less
• Coverage is subject to proper installation, checkout, registration, and the conditions stated in the owner’s manual

Price

<s>$922.00</s> $737.60