Discover the Xantrex TRUEcharge™3 40A 3 Bank Battery Charger for 12V systems—a compact powerhouse designed to protect, optimize, and extend the life of your batteries across RVs, boats, and commercial setups. This microprocessor-controlled charger delivers reliable, multistage charging with low electrical interference and high efficiency, all in a small, drip-proof footprint.
Ultra-Compact 3-Bank Power for Maximum Flexibility
With three independent charging banks and a maximum of 40A, TRUEcharge3 handles multiple battery banks simultaneously while preserving safety and performance. Its versatile design supports mounting in multiple orientations to fit tight spaces and challenging installations.
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Three-bank charging for simultaneous maintenance of multiple battery banks
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Multistage charging (Bulk, Absorption, Float) to maximize charge speed while protecting battery health
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Battery compatibility supports Flooded, Gel, AGM, and LiFePO4 (lithium-ion) batteries
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Remote panel ready for easy readout across the system (parallel stacking requires remote panel)
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Low interference and high efficiency with Power Factor Corrected charging
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Drip-proof design for flexible mounting in various environments
Smart Charging for Longer-Lasting Batteries
TRUEcharge3 follows a precise three-stage charging algorithm to deliver optimal voltage and current at each phase, reducing wear and extending battery life:
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Bulk rapidly replaces 70–80% of the battery’s charge
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Absorption safely replenishes the remaining 20–30% at a controlled rate
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Float maintains full charge at a stable voltage to prevent damage
Global Power Ready and Safe
Designed for worldwide use, the TRUEcharge3 accepts 90–265 Vac, 47–63 Hz, making travel and irregular power conditions manageable. It includes comprehensive protections to safeguard both the charger and your batteries.
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Surge and spike protection built in
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Protective features include reverse polarity, over-temperature, DC over-voltage, and circuit breaker protection
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Quiet operation with optional low-noise mode
Technical Highlights
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Output current 40 A (nominal)
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Output voltage Charge 14.2–15.5 V; Float 13.4–13.8 V; up to 16 V DC
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AC input 90–265 Vac, 47–63 Hz; nominal 120/230/240 Vac
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Battery connection three positive terminals and one negative terminal
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Operating temperature 0–60°C (32–140°F); storage -40–80°C (-40–176°F)
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Dimensions 70 x 170 x 250 mm (2.8 x 6.7 x 9.8 in); weight 2.2 kg (4.8 lb)
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Battery types supported Gel, Flooded, AGM, LiFePO4
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Safety approvals CSA 60335-2-29; CE Marked for LVD and EMC
