Why Choose the Xantrex TRUECHARGE™3 20A 3-Bank Charger for Your Power Needs
Imagine powering your adventures without worrying about dead batteries or unreliable charging. The Xantrex TRUECHARGE™3 20A 3-bank 12V charger steps in as a reliable workhorse, blending compact design with smart technology. Perfect for marine enthusiasts, RV owners, and commercial operators, this charger handles everything from flooded lead-acid to modern lithium-ion setups. Its global voltage acceptance means no adapters needed on international trips, and the drip-proof build lets you mount it almost anywhere—inside engine compartments or exposed cabins.
What sets it apart? Beyond basic charging, it employs intelligent algorithms that extend battery life while delivering peak performance. Users rave about its ability to revive deeply discharged batteries, a game-changer for those long off-grid days.
Smart Multistage Charging: Bulk, Absorption, and Float Explained
Traditional chargers often overcharge or undercharge, shortening battery lifespan. This charger uses a microprocessor-driven three-stage process tailored to your battery type:
Bulk Stage: Rapidly restores 70-80% capacity with maximum current, getting you back online fast.
Absorption Stage: Gently tops off the remaining charge, avoiding heat buildup and gassing.
Float Stage: Maintains full charge indefinitely without trickle risks, ideal for storage.
Optional equalization for flooded batteries desulfates plates, ensuring longevity. Switch between two- or three-stage modes based on your setup.
Power Factor Correction: Maximize Shore Power Efficiency
In tight marina slips or RV parks with shared power, efficiency matters. Power factor corrected (PFC) design draws less current from your AC source, over 80% efficient. Run chargers alongside microwaves or air conditioners without tripping breakers—freeing up power for what you love most.
Battery Versatility and Bank Independence
Three isolated banks charge independently, perfect for house, engine start, and thruster batteries. Supports gel, flooded, AGM, and LiFePO4 chemistries with customizable voltage settings (14.2-15.5V charge, 13.4-13.8V float). Minimum 40Ah bank recommended per output for optimal results. Parallel stack two units (with remote) for 40A power.
Rugged Protection and Mount Anywhere Design
Built for real-world abuse: reverse polarity won’t fry connections, over-temp shuts down safely, DC over-voltage guards electronics, and circuit breakers reset effortlessly. IP32 drip-proof rating and multi-position mounting (0°-60°C operation) suit wet, dusty environments. Quiet mode minimizes fan noise for stealthy overnight charging.
Compact Specs at a Glance
Specification
Details
Output Current
20A per bank
AC Input
90-265 Vac, 47-63 Hz
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)
Efficiency
>80%
Connections
3 positive, 1 negative terminals
Real-World Applications: Marine, RV, and Beyond
Boat owners trust it for reliable starts after stormy nights. RV campers appreciate lithium compatibility for lightweight deep-cycle power. Commercial fleets value global compliance (CE, UL, ABYC) and surge protection. Easy LED display monitors charge status; add a remote for dash mounting.
Frequently Asked Questions
Can this charger handle lithium-ion batteries?
Yes, it’s fully compatible with LiFePO4 lithium-ion batteries, offering dedicated profiles to prevent overcharge and match their voltage needs.
