Xantrex TRUECHARGE™3 20A 3 Bank Battery Charger - 24V
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Xantrex TRUECHARGE™3 20A 3 Bank Battery Charger - 24V Product Description
Discover Reliable Power for Your Marine or RV Adventures
Imagine setting off on a long offshore voyage or a cross-country RV trip, only to worry about your batteries failing at the worst moment. With the compact yet powerful design of this 24V three-bank charger, those concerns fade away. Engineered for demanding environments like boats, yachts, and motorhomes, it delivers precise, efficient charging to keep your deep-cycle batteries in peak condition—whether you're dealing with gel, flooded, AGM, or modern lithium-ion setups.
Its wide input range handles everything from stable marina power to fluctuating generators abroad, making it a go-to for global travelers. Low electromagnetic interference ensures it plays nice with sensitive electronics onboard, while the drip-proof build lets you mount it confidently in engine rooms or tight compartments.
Key Advantages That Set It Apart
This charger isn't just about specs—it's about real-world performance that saves time, extends battery life, and reduces maintenance headaches.
- Multi-Bank Flexibility: Independently charge up to three battery banks simultaneously, perfect for house, engine start, and thruster batteries on larger vessels.
- Smart Multistage Charging: Automatically switches between bulk, absorption, and float stages to optimize charge without overcharging, adding years to battery lifespan.
- Lithium-Ready: Unlike older models, it seamlessly supports LiFePO4 batteries, which offer lighter weight and faster charging for performance-oriented users.
- Global Compatibility: Thrives on 90-265V AC input, so no adapters needed for international shoreside power or inconsistent supplies.
- Quiet Operation: A dedicated quiet mode minimizes fan noise, ideal for overnight charging in close quarters.
- Stackable Power: Parallel up to two units for higher amperage needs, with an optional remote for monitoring.
How Multistage Charging Maximizes Battery Health
Batteries degrade fastest from improper charging. This unit's microprocessor-driven algorithm takes a intelligent approach:
- Bulk Stage: High current blasts in 70-80% of capacity quickly, getting you back online fast.
- Absorption Stage: Tapers current while holding voltage to safely top off the last 20-30%.
- Float Stage: Maintains full charge indefinitely without gassing or sulfation risks.
Plus, an equalization mode for flooded batteries gently balances cells, preventing uneven wear. Temperature compensation adjusts output based on ambient conditions, ensuring safe charging from freezing decks to hot engine bays.
Built to Withstand Harsh Conditions
Rugged protection keeps it running when others falter:
- Reverse polarity and over-voltage safeguards prevent costly damage.
- Circuit breaker trips under overloads, resettable without tools.
- Over-temperature shutdown protects internals during prolonged use.
- IP32 drip-proof rating allows vertical, horizontal, or upside-down mounting.
Power factor correction boosts efficiency over 80%, drawing less current from your shore power pedestal—so more juice for appliances and fewer breaker trips.
Versatile Applications Across Industries
From weekend sailboats to commercial fishing fleets, off-grid RVs to solar-hybrid systems, this charger's 20A per bank output suits 40Ah+ setups. Its slim profile (under 10 inches long, just 4.8 lbs) squeezes into tight spaces, while the clear display shows charge status at a glance. Pair with a remote panel for dash-mounted oversight.
Technical Highlights at a Glance
| Specification | Details |
|---|---|
| Output Current (per bank) | 20A |
| Charge Voltage Range | 28.4–31.0 Vdc |
| Float Voltage | 26.8–27.6 Vdc |
| AC Input | 90–265 Vac, 47–63 Hz |
| Efficiency | >80% |
| Battery Types | Flooded, Gel, AGM, LiFePO4 |
| Operating Temp | 0–60°C (32–140°F) |
| Dimensions (H x W x L) | 70 x 170 x 250 mm (2.8 x 6.7 x 9.8 in) |
| Weight | 2.2 kg (4.8 lb) |
Frequently Asked Questions
What types of batteries can this charger support?
It works with flooded lead-acid, gel, AGM, and lithium-ion (LiFePO4) batteries, with customizable settings for each type to ensure optimal performance.
Can it handle low-voltage or deeply discharged batteries?
Yes, it's designed to recover batteries drained to very low voltages, reviving them without damage.
Is this charger suitable for marine use?
Absolutely—its drip-proof design, wide temp range, and vibration resistance make it ideal for boats and harsh saltwater environments.
How many battery banks can it charge at once?
Three independent banks, each getting 20A, with dedicated positive terminals and a shared negative.
Does it require a specific mounting orientation?
No, the drip-proof construction allows mounting in any position: upright, inverted, or on its side.
What's the minimum battery size recommended?
At least 40Ah per bank to pair effectively with its 20A output and avoid underutilization.
Can I stack multiple units for more power?
Yes, parallel stack up to two chargers using the optional remote panel for synchronized operation.
TRUECHARGE™3 20A 3 Bank Battery Charger - 24V
TRUEcharge3 battery chargers lead the industry with a small footprint and ultra-compact design. In addition to meeting global safety and regulatory standards, TRUEcharge3 battery chargers feature low electrical interference and efficient power factor-corrected multistage charging. Thanks to their inherent drip-proof design characteristics, the TRUEcharge3 Chargers can be mounted in multiple positions. Unlike its predecessors, TRUEcharge3 is lithium-ion battery compatible.
Designed for recreational and commercial applications worldwide, TRUEcharge3 accepts 90–265 Vac, and 47–63 Hz, which makes traveling abroad and handling poor-quality power a breeze. The easy-to-read display of the TRUEcharge3 24 V models can be enhanced with an optional remote panel. Each model comes with built-in protection against surges and spikes on the AC power line.
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 28.4–31.0 Vdc; Float 26.8–27.6 Vdc; 32 Vdc
- 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, 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.Xantrex TRUECHARGE™3 20A 3 Bank Battery Charger - 24V Related Products
Xantrex TRUEcharge3 Remote PanelSave $311 when you buy the Xantrex TRUECHARGE™3 20A 3 Bank Battery Charger - 24V for only $472 from NVN Marine! Same day shipping before 3pm.
Xantrex TRUECHARGE™3 20A 3 Bank Battery Charger - 24V Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Xantrex |
| Charger Output - Amps: |
20a |
| Charger Output Voltage: |
24v |
| Charging Banks: |
3 |
| Portable: |
No |
| Product Brochure: |
Xantrex TRUECHARGE™3 20A 3 Bank Battery Charger - 24V User Reviews
Xantrex TRUECHARGE™3 20A 3 Bank Battery Charger - 24V Shipping & Return
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