Meet the Xantrex Truecharge3 20 Amp 3 Bank 12V Charger — a high-efficiency, ultra-compact charger designed to power three independent 12V battery banks with precision and reliability. Built for global use, this Lithium-ion compatible charger delivers advanced charging in a small footprint for boats, RVs, fleets, and commercial applications.
-
Three-bank charging provides dedicated output for three 12V battery banks, with a total output current of up to 20 A per unit. For larger systems, you can parallel stack up to two chargers to scale capacity.
-
Universal input complies with 90–265 Vac and 47–63 Hz, making it ideal for worldwide travel and handling variable power quality.
-
Automatic 3-stage charging with precise regulation: Charge at 14.2–15.5 VDC, Float at 13.4–13.8 VDC, and Equalize at 16 VDC for optimal battery health.
-
Flexible connections three positive terminals and one negative terminal allow versatile battery configurations and easier wiring.
-
Protection you can trust built-in surge and spike protection on the AC power line, plus circuit breaker protection for safe operation.
-
Lithium-ion compatibility unlike predecessors, TRUEcharge3 supports Lithium-ion batteries alongside Gel, Flooded, and AGM chemistries.
-
Efficient and quiet efficiency greater than 80%, with low electrical interference and power-factor corrected multistage charging.
-
Drip-proof design enables mounting in multiple orientations, giving you flexible installation options in tight spaces.
-
Climate-ready temperature compensation with three settings ensures optimal charging performance from 0 to 60°C (32–140°F).
-
Compatibility and capacity supports Gel, Flooded, AGM, and Lithium-Ion batteries with a minimum recommended bank size of 40 Ah.
-
Compact and robust at only 4.8 lb (2.2 kg) and dimensions 70 x 170 x 250 mm (2.8 x 6.7 x 9.8 in), designed for demanding environments.
-
Remote monitoring option the 12V models can be enhanced with an optional remote display panel for easy status viewing.
Specifications
-
Model: 804-1220-10
-
Output current (nominal): 20 A
-
Charge voltage: 14.2–15.5 VDC
-
Float voltage: 13.4–13.8 VDC
-
Equalize voltage: 16 V
-
AC input voltage: 90–265 Vac; 47–63 Hz (nominal 120/230/240 Vac)
-
Temperature compensation: 3 settings
-
Charger efficiency: >80%
-
Battery types supported: Gel, Flooded, AGM, Lithium-Ion
-
Minimum bank size: 40 Ah
-
Operating temperature: 0–60°C (32–140°F)
-
Battery connections: Three positive terminals, One negative terminal
-
Weight: 4.8 lb (2.2 kg)
-
Dimensions: 70 x 170 x 250 mm (2.8 x 6.7 x 9.8 in)
-
Warranty: 2 years
engineered for reliability in marine, RV, and commercial environments, the TRUEcharge3 20A 3-bank charger combines a compact form factor with robust protection, global compatibility, and advanced charging profiles. It helps extend battery life, reduce maintenance, and keep power systems ready when you need them most.
| Output current (nominal) |
20 A |
| Charge |
14.2 — 15.5 Vdc |
| Float |
13.4 — 13.8 Vdc |
| Equalize |
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 |
Greater Than 80 percent |
| Battery type |
Gel, Flooded, AGM, Lithium-Ion |
| Minimum recommended battery bank size |
40 Ah |
| Operating temperature Operating temperature |
0—60 degrees C (32—140 degrees F) |
| Battery connection |
Three positive terminals, One negative terminal |
| Weight |
4.8 lb (2.2 kg) |
| Warranty |
Two year |
| Dimensions |
70 x 170 x 250mm (2.8 x 6.7 x 9.8in) |
