Xantrex TrueCharge3 20A 3-Bank Battery Charger – 12V – 804-1220-10

The Xantrex TrueCharge3 20A 3-Bank Battery Charger is a compact, high-efficiency multi-bank charger designed for marine, RV, and off-grid 12V applications. Delivering 20 amps total output, it charges up to three battery banks simultaneously, providing precise multi-stage charging to maximize battery life and performance.

Featuring intelligent battery management and automatic temperature compensation, the TrueCharge3 ensures that flooded, AGM, and gel batteries are charged safely and efficiently, preventing overcharge or undercharge. Its compact and lightweight design allows for easy installation in boats, RVs, or mobile/off-grid power systems.

Ideal for users who need reliable, safe, and efficient charging for multiple 12V battery banks in marine, RV, and off-grid setups.

🔧 Technical Specifications

Electrical

• Charger Type: Multi-stage smart charger

• Charging Current: 20 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

• LED indicators for each bank’s charge status

• Prevents overcharging and prolongs battery life

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. 5.0 lb (2.3 kg)

• Mounting: Wall or bulkhead mount

• Color: Black

Certifications

• UL listed

• CE compliant

• Marine ignition protection

Warranty

• 1-Year Manufacturer Warranty

⭐ Key Features 

• 20A 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 health

• Automatic temperature compensation

• LED indicators for easy monitoring

• Compact and lightweight 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): 20 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: 40 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 20A 3 BANK BATTERY CHARGER 12V
Manufacturer : Xantrex
Manufacturer Part No : 804-1220-10
Product : XANTREX TRUECHARGE 3 20A 3 BANK BATTERY CHARGER 12V