QA1250E Series Smart Battery Charger | 24V 30A / 48V 25A / 72V 15A | 100–240V AC Input | IP65 Die-Cast Aluminum | CAN BUS - Home Energy Storage Systems | Solar Batteries

Description

QA1250E Series Smart Battery Charger | 24V 30A / 48V 25A / 72V 15A | 100-240V AC Input

The QA1250E Series is a compact, high-efficiency smart battery charger family designed for 24V, 48V, and 72V battery systems. It combines a universal 100-240V AC input, programmable DC charging output, high power factor, high efficiency, active-fan cooling, and CAN BUS communication in one rugged charger platform.

The series includes three selectable models: QA1250E-24V30A for 24V systems, QA1250E-48V25A for 48V systems, and QA1250E-72V15A for 72V systems. According to the product parameter table, the output voltage ranges are 24-34V, 39-60V, and 60-88V respectively, with maximum output current up to 30A, 25A, and 15A depending on model and AC input condition.

Built with a die-cast aluminum enclosure and IP65 protection rating, the QA1250E Series is suitable for battery sheds, equipment enclosures, utility vehicles, marine shore-power setups, mobile work platforms, and other dusty or wet-exposure installations when proper cable sealing, strain relief, and drainage practices are followed. IP65 means dust-tight and protected against water jets under defined test conditions; it does not mean immersion-proof.

Each charger supports lead-acid, Li-ion, and LiFePO4 charging voltage presets by model. The 24V model supports typical charge targets of 29.4V for lead-acid, 29.4V for Li-ion, and 29.2V for LiFePO4. The 48V model supports 58.8V, 54.6V, and 58.4V respectively. The 72V model supports 88.2V, 84.0V, and 84.0V respectively.

With ≥93% efficiency, ≥0.99 power factor, 3-color LED status indication, and CAN BUS interface, the QA1250E Series is designed for system integrators, EV/utility vehicle builders, battery pack applications, and equipment users who need a compact charger with clear model selection and reliable charging performance.

Universal 100-240V AC input for global use on typical 120V, 208V, 220V, or 240V supplies.
Three charger variants: QA1250E-24V30A, QA1250E-48V25A, and QA1250E-72V15A.
24V model output range: 24-34V, with up to 30A maximum output current.
48V model output range: 39-60V, with up to 25A at 220V and 18A at 120V.
72V model output range: 60-88V, with up to 15A at 220V and 12A at 120V.
Supports typical lead-acid, Li-ion, and LiFePO4 charge voltage presets by model.
High efficiency of ≥93% helps reduce waste heat during charging.
Power factor of ≥0.99 supports efficient AC input performance.
Die-cast aluminum housing provides rugged mechanical protection and thermal conduction.
IP65 protection rating for dust-tight construction and water-jet resistance under defined conditions.
Active cooling fan helps maintain airflow during sustained charging loads.
CAN BUS interface for communication with compatible BMS or system controllers.
3-color LED indicator provides quick visual status and fault indication.
Shared mechanical footprint across the series: 234 × 129 × 112 mm, 2.4 kg.

Series	QA1250E Series Smart Battery Charger
Model Options	QA1250E-24V30A / QA1250E-48V25A / QA1250E-72V15A
Battery Nominal Voltage	24V / 48V / 72V
Input Voltage	100-240V AC
Input Frequency	45-65 Hz
Max Input Current	~5.5A @ 220VAC (model family max)
Efficiency	≥93%
Power Factor	≥0.99
24V Model Output Voltage Range	24-34V
48V Model Output Voltage Range	39-60V
72V Model Output Voltage Range	60-88V
QA1250E-24V30A Max Output Current	30A @ 220V / 30A @ 120V
QA1250E-48V25A Max Output Current	25A @ 220V / 18A @ 120V
QA1250E-72V15A Max Output Current	15A @ 220V / 12A @ 120V
CV Cut-off Current	3.0A (24V / 48V) / 1.5A (72V)
24V Typical Charging Targets	Lead-Acid 29.4V / Li-ion 29.4V / LiFePO4 29.2V
48V Typical Charging Targets	Lead-Acid 58.8V / Li-ion 54.6V / LiFePO4 58.4V
72V Typical Charging Targets	Lead-Acid 88.2V / Li-ion 84.0V / LiFePO4 84.0V
Protection Rating	IP65 (dust-tight; protected against water jets — not immersion)
Cooling	Active cooling fan
Housing Material	Die-cast aluminum
Product Size	234 × 129 × 112 mm
Net Weight	2.4 kg
Operating Temperature	-20°C ~ 50°C
Storage Temperature	-40°C ~ 95°C
Indicators	3-color LED
Communications	CAN BUS (physical interface present; compatibility and protocol must be confirmed per system)
Compliance Marks on Label / Paperwork	CE / FCC (as marked)

Download the MSP-100 user manual for detailed product operation, installation guidance, safety instructions, maintenance information, and technical reference.

Download MSP-100 User Manual

Frequently Asked Questions

Q1: Which QA1250E model should I choose for my battery bank?

A: Match the charger to your pack nominal voltage: choose QA1250E-24V30A for 24V packs, QA1250E-48V25A for 48V packs, and QA1250E-72V15A for 72V packs. Then confirm that the battery pack or BMS allows the charger’s maximum output current: 30A, 25A, or 15A depending on the model.

Q2: Can the QA1250E Series run on a normal US 120V wall outlet?

A: Yes. The 100-240V AC input range covers standard 120V power. Because this is a 1250W-class charger, use a properly rated circuit and avoid lightweight extension cords. Short cords should typically be at least 14 AWG, and longer runs often require heavier gauge wiring.

Q3: Does it work with LiFePO4, lithium-ion, and lead-acid batteries?

A: The specification lists charging targets for lead-acid, Li-ion, and LiFePO4 batteries by model. Actual compatibility depends on whether the charge voltage, current profile, and BMS requirements match your battery pack.

Q4: What does the IP65 rating mean for real use?

A: IP65 means the enclosure is dust-tight and protected against water jets under standardized test conditions. It does not mean the charger is submersible or pressure-washer-proof. Proper cable glands, connector sealing, mounting orientation, and drainage are still required.

Q5: What is CAN BUS used for on this charger?

A: CAN BUS allows the charger to communicate with compatible BMS or system controllers for items such as current limits, voltage limits, start/stop control, status, and fault information. Protocol compatibility must be confirmed with the system integrator or BMS supplier.

Q6: Does the charger include DC fuses or a DC disconnect?

A: The provided specification does not list integrated DC fusing or a DC disconnect. Best practice is to add an appropriately sized DC fuse and disconnect near the battery, sized according to the conductor, pack short-circuit capacity, and battery manufacturer guidance.

Q7: How hot does the charger get, and what ventilation is required?

A: The charger uses active fan cooling and a die-cast aluminum case, so warm exhaust air is expected during operation. Keep the fan intake and exhaust clear, avoid covering the enclosure, and ensure the ambient temperature remains within the -20°C to 50°C operating range.

Q8: What is included in the box?

A: The standard package is listed as the selected charger unit and user manual. Confirm the SKU details separately for AC cord, DC lugs, mounting feet, or other accessories if those items are offered as optional components.

Additional information

Output power	24V-30A, 48V25A, 72V15A
Quantity	1 unit, 2 units, 3 units

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