Xantrex TrueCharge3 40A 3-Bank Battery Charger – 12V – 804-1240-10

The Xantrex TrueCharge3 40A 3-Bank Battery Charger is a high-performance multi-bank charger designed for marine, RV, and off-grid applications. This 12V charger delivers 40 amps total output, charging up to three battery banks simultaneously with precise multi-stage charging to maximize battery life and efficiency.

Equipped with intelligent battery management and automatic temperature compensation, the TrueCharge3 ensures flooded, AGM, and gel batteries receive optimal charging without risk of overcharging. Its compact, lightweight design makes it ideal for boats, RVs, or off-grid installations.

Perfect for users needing reliable, safe, and efficient charging for multiple 12V battery banks in mobile or off-grid power systems.

🔧 Technical Specifications

Electrical

• Charger Type: Multi-stage smart charger

• Charging Current: 40 amps (total output)

• Number of Banks: 3

• DC System Voltage: 12 VDC

• Battery Compatibility: Flooded, AGM, Gel

• Power Factor Corrected: Yes

• AC Input Voltage: 120 VAC, 60 Hz

Charging Features

• Multi-stage charging (bulk, absorption, float)

• Automatic temperature compensation

• Prevents overcharging and extends battery life

• LED indicators for each bank’s charge status

Environmental

• Operating Temperature Range: 32°F to 122°F (0°C to 50°C)

• Humidity: Up to 95% non-condensing

Physical

• Dimensions (L × W × H): Approx. 11.0″ × 6.0″ × 3.0″

• Weight: Approx. 5.5 lb (2.5 kg)

• Mounting: Wall or bulkhead mount

• Color: Black

Certifications

• UL listed

• CE compliant

• Marine ignition protection

Warranty

• 1-Year Manufacturer Warranty

⭐ Key Features

• 40A multi-bank charger for 12V systems

• Charges up to 3 battery banks simultaneously

• Compatible with flooded, AGM, and gel batteries

• Multi-stage smart charging for optimized battery life

• Automatic temperature compensation

• LED indicators for status of each bank

• Compact and easy-to-install design

• Ideal for marine, RV, and off-grid 12V battery systems

Features:

• Microprocessor-controlled, multistage charging algorithms
• Settings for two and three-stage charging
• Battery-equalization feature
• Settings for flooded, gel, AGM, or lithium-ion batteries
• Equipped with parallel stacking (remote panel required)
• Ability to charge batteries drained to extremely low voltage
• Added quiet mode

Protection Features:

• Reverse-battery polarity protection
• Drip-proof design
• DC over-voltage protection
• Over-temperature protection
• Circuit breaker protection

Three-Stage Charging

Multistage charging ensures batteries receive optimum charging, but with minimal wear and tear, regulating the voltage and current delivered to the batteries in three automatic stages:

• Bulk: Replaces 70–80% of the battery’s state-of-charge at the fastest possible rate
• Absorption: Replenishes the remaining 20–30% of charge, bringing the battery to a full charge at a slow, safe rate
• Float: Voltage is reduced and held constant to prevent damage and maintain batteries at a full charge for the remaining 20–30% of charge, bringing the battery to a full charge at a slow, safe rate

Power Factor Corrected (PFC) Charging

Less shore power is required for charging batteries, freeing up more usable AC power for running electrical devices and appliances and reducing the likelihood of tripping shore power breakers.

Electrical Specifications (@ 25 degrees C unless otherwise noted):

• Output Current (nominal): 40 A 
• Output Voltage (nominal, depending on settings): Charge 14.2–15.5; Float 13.4–13.8 Vdc; 16 V
• DC Output Connections: Three
• AC Input Voltage: 90–265 Vac; 47–63 Hz 120 Vac, 230 Vac, 240 Vac nominal
• Temperature Compensation: Three settings 
• Charger Efficiency: > 80%
• Battery Type: Gel, Flooded, AGM, LiFePO4 
• Minimum Recommended Battery Bank Size: 80 Ah

General Specifications:

• Operating Temperature Range: 0–60°C (32–140°F) 
• Storage Temperature -40–80°C (-40–176°F)
• Battery Connection: Three positive terminals and one negative terminal
• Dimensions (H x W x L): 70 x 170 x 250 mm (2.8 x 6.7 x 9.8”)
• Weight 2.2 kg (4.8 lb)

Regulatory Approvals 

Meets CSA 60335-2-29, CE Marked for the Low Voltage Directive (safety) and the EMC Directive, UL1564, IEC 60335-2-29, IP32 per EN.IEC 60529, FCC Part 158, Canada ICES-003 Class B emissions limits, ABYC A-31, and DOE/CEC energy efficiency compliant.

This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.
Product : XANTREX TRUECHARGE 3 40A 3 BANK BATTERY CHARGER 12V
Manufacturer : Xantrex
Manufacturer Part No : 804-1240-10
Product : XANTREX TRUECHARGE 3 40A 3 BANK BATTERY CHARGER 12V