Battery charger for marine applications CV

for electric vehiclesfor forklift trucksfor AGV

Product overview
This sealed-series charger family is designed for industrial battery charging tasks and supports flooded lead‑acid, sealed lead‑acid, Li‑ion, LiFePO4, Ni‑MH and Ni‑Cd chemistries. Available in multiple voltage variants, the VT‑1200W series is suitable for cycle and float charging of battery packs used in electric vehicles, forklifts, AGV, floor scrubbers, patrol vehicles, ships and other commercial applications.

Key specifications (short)

• Input voltage: 100–240 VAC
• Applicable battery voltages: DC 12V / 24V / 36V / 48V / 60V / 72V
• Rated power: 1200W (series)
• Available charging current (model-dependent): examples up to 35A
• Waterproof ratings: IP65 / IP67 / IP68 (model-dependent)
• Warranty: 2 years

Protection functions

• Over‑temperature protection: reduces power or suspends charging above safe limits; automatic resume after cooling.
• Reverse‑connection protection: internal shutdown if battery polarity is reversed.
• No‑load protection: no output when no battery is connected.
• Short‑circuit protection: shuts down on short circuit; restart only after fault clearance.
• Automatic full‑charge cutoff: charger stops output when battery is detected fully charged.

VT-1200W series charging data

• VT-1200W-12 — Lead Acid CV: 14.7V; Li‑ion CV: 16.8V; LiFePO4 CV: 14.6V; Current limit: 35A; Transition/cut‑off (Lead Acid): 7.0A; (Li): 1.75A
• VT-1200W-24 — Lead Acid CV: 29.4V; Li‑ion CV: 29.4V; LiFePO4 CV: 29.2V; Current limit: 30A; Transition/cut‑off (Lead Acid): 6.0A; (Li): 1.50A
• VT-1200W-36 — Lead Acid CV: 44.1V; Li‑ion CV: 42.0V; LiFePO4 CV: 43.8V; Current limit: 25A; Transition/cut‑off (Lead Acid): 5.0A; (Li): 1.25A
• VT-1200W-48 — Lead Acid CV: 58.8V; Li‑ion CV: 54.6V; LiFePO4 CV: 58.4V; Current limit: 20A; Transition/cut‑off (Lead Acid): 3.6A; (Li): 0.90A
• VT-1200W-60 — Lead Acid CV: 73.5V; Li‑ion CV: 67.2V; LiFePO4 CV: 73.0V; Current limit: 15A; Transition/cut‑off (Lead Acid): 3.0A; (Li): 0.75A
• VT-1200W-72 — Lead Acid CV: 88.2V; Li‑ion CV: 84.0V; LiFePO4 CV: 87.6V; Current limit: 12A; Transition/cut‑off (Lead Acid): 2.4A; (Li): 0.60A

QA Series model summary (selected)

• QA450A-12V15A — Input 180–240V; Output 12V 15A; Suitable battery range 90–120AH; Dimensions 183×108×70 mm; Weight 1.7 kg; Output voltage 14.7V
• QA600A-12V30A — Input 180–240V; Output 12V 20–30A; Battery range 180–240AH; Dimensions 199×122.5×77 mm; Weight 1.9 kg; Output voltage 14.7V
• QA750A-24V25A — Input 180–240V; Output 24V 25A; Battery range 150–200AH; Dimensions 195×122×71 mm; Weight 1.9 kg; Output voltage 29.4V
• QA1250A-48V25A — Input 180–240V; Output 48V 25A; Battery range 120–150AH; Dimensions 231.9×136.5×76 mm; Weight 2.8 kg; Output voltage 58.8V
• QA2000A-24V40A/50A — Input 180–240V (some models with CAN and 12V/3A); Output 24V 40–50A; Battery range up to 400AH; Dimensions 287×168×89 mm; Weight 4.4 kg; Output voltage 29.4V

Technical specifications

• Input voltage: 100–240 VAC (AC mains)
• Applicable battery voltages: DC 12V / 24V / 36V / 48V / 60V / 72V
• Available charging currents (model-dependent): 8A, 10A, 12A, 14A, 15A, 20A, 25A, 30A, 45A
• Series: VT‑1200W family and QA series (450W–2000W listed)
• Typical dimensions & weights vary by model (examples provided in model summary)
• Waterproof ratings: IP65 / IP67 / IP68 (selectable by model)
• Protections: over‑temperature, reverse‑connection, no‑load, short‑circuit, automatic full‑charge cutoff
• Warranty: 2 years