The HP812 24V/36V 1.5A automotive battery charger delivers professional-grade maintenance charging for a wide range of vehicles. Engineered specifically for dual-voltage systems found in heavy-duty trucks, agricultural equipment, and classic cars, this smart charger automatically detects your vehicle’s electrical system (12V/24V/36V) and adjusts charging parameters accordingly.
Key features for specialized applications:
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Microprocessor-controlled 8-stage charging (diagnosis/soft-start/bulk/absorption/etc.)
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Battery type detection (lead acid/AGM/lithium)
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Ultra-safe operation with reverse polarity protection and spark-free technology
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Winter charging mode for cold weather conditions (-20°C to 60°C operation)
Technical advantages:
✓ Charges/maintains multiple battery types: standard flooded, AGM, gel cell, and lithium
✓ Compact 180x110x65mm size fits in toolboxes
✓ 2.5m heavy-duty cables with industrial-grade clamps
✓ Compatible with: diesel trucks (Volvo/Mercedes), RV house batteries, golf carts, and military vehicles
For mechanics and vehicle owners, the HP812 provides:
→ One charger for multiple voltage systems
→ Battery desulfation function to revive old batteries
→ Maintenance mode for long-term storage
→ Durable construction for workshop environments
Specifications
HP812 – 24V / 36V 1.5A In-Car Battery Charger (Lithium / Lead-Acid)
| Model No. |
HP812 (24V / 36V – 1.5A) |
| Application |
Electric Bikes, Mobility Scooters, Power Wheelchairs |
| Input DC Voltage |
10.5V – 15V (max endure 21V / 60s) |
| Output Voltage |
29.5V ± 0.2V (24V) / 41.8V ± 0.2V (36V) |
| Output Current |
1.5A ± 0.2A |
| Fast Charge Current |
1.5A ± 0.2A (constant current) |
| Full-Charged Current |
0.15A ± 0.1A |
| Protections |
• Short Circuit Protection: 0.6A ± 0.3A
• Input Reverse Polarity Protection: >80A / 0.5s (input fuse)
• Output Reverse Polarity Protection: >50A / 0.5s (output fuse)
• Feedback Protection: Stop charging
• Over Voltage Protection: Stop charging (7S=33V±2V / 10S=48V±2V)
• Low Voltage Protection (battery): Low current charge 0.6A ± 0.3A
• Over Current Protection: ≥3.2A ± 0.2A, no output
• Low Voltage Protection: Stop charging after 2h
• Car Battery Low Voltage Protection: <10.5V stop charging
• Fast-Charge Timer Protection: Stop charging after 10h |
| Efficiency |
≥ 79% |
| Input Current |
• Output 42V / 1.5A → Max input current 9A
• Output 29.4V / 1.5A → Max input current 6A |
| Operating Temperature |
-10℃ ~ 40℃ |
| Storage Temperature |
-20℃ ~ 80℃ |
| Operating Humidity |
20% ~ 85% |
| Dimensions |
130 × 93 × 53 mm |
| Weight / Case |
0.68kg / Grey Aluminum |
| Series Available |
HP812 – 24V / 36V, Imax: 1.5A |
| Certifications |
RoHS Compliant |
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