12V 50Ah LiFePO4 Battery Manufacturer | Wholesale Factory
Please buy wholesale 12V 50Ah LiFePO4 batteries directly from the Chinese factory. 6000+ cycles, built-in BMS, IP65 rated. OEM available. Request a quote.
Product Overview & System Integration
The Hemao 12V 50Ah LiFePO4 battery delivers deep-cycle power storage for off-grid and mobile applications. It integrates with standard 12V inverters, MPPT solar charge controllers, and marine trolling motors. Engineered for high-density energy configurations, the internal cell matrix supports up to four units connected in series (48V nominal) or four units in parallel (200Ah nominal). As an established China OEM/ODM factory, Xiamen Hemao Industry provides full-service hardware adaptation, including custom BMS current scaling (30A to 100A), personalized private-label ABS casing, and specialized terminal orientations (M6/M8) to match proprietary system layouts.

Material & Technical Specifications
|
Technical Parameter |
Specification Value / Limit |
|
Nominal Voltage |
12.8V |
|
Rated Capacity |
50Ah (0.2C, 25°C) |
|
Total Energy Content |
640Wh |
|
Cell Chemistry |
Lithium Iron Phosphate (LiFePO4) Grade A |
|
Standard Charge Current |
10A |
|
Maximum Continuous Charge Current |
50A |
|
Maximum Continuous Discharge Current |
50A |
|
Peak Discharge Current (5 seconds) |
100A |
|
Over-Voltage Protection (OVP) Cut-off |
14.6V (Cell single voltage: 3.65V) |
|
Under-Voltage Protection (UVP) Cut-off |
10.0V (Cell single voltage: 2.5V) |
|
Over-Current Protection (OCP) Threshold |
110A ± 5A |
|
Enclosure Material / IP Rating |
Fire-retardant ABS / IP65 Waterproof |
|
Terminal Bolt Thread Type |
M6 / M8 Optional |
|
Charge Operating Temperature Range |
0°C to 55°C |
|
Discharge Operating Temperature Range |
-20°C to 60°C |
|
Storage Temperature Range |
-10°C to 45°C (60% ± 25% SOC) |
|
Maximum Operating Altitude |
4,000 meters |
|
Design Float Life (25°C) |
10 Years |
Quality Control & Global Standards
Xiamen Hemao Industry deploys a multi-stage quality assurance protocol across all automated assembly lines. Every 12V 50Ah unit undergoes mandatory automated cell sorting to ensure internal resistance is within ±0.5 mΩ and voltage variance within ±5 mV. Completed battery packs are subjected to a rigorous 100% capacity dual-cycle aging test and automatic BMS function verification. Production complies with ISO9001 quality management infrastructure. Full tracking documentation is available upon request, including UN38.3 vibration tests, MSDS chemical safety reports, CE certification, and RoHS material compliance verification.

Packaging & Logistics Safety
Lithium iron phosphate packs are classified as UN3480 Class 9 Dangerous Goods for international transport. Hemao supplies heavy-duty export-grade packaging consisting of custom-molded high-density EPE foam inserts, individual UN-certified thick double-wall corrugated cartons, and moisture-barrier inner lining. Bulk palletized shipments are packed on fumigated ISPM-15 compliant wooden or heavy plastic pallets, edge-protected with rigid L-bars, wrapped with heavy-duty stretch film, and cross-strapped with heavy-gauge PET banding for safe maritime container shipping and regional logistics handling.
Typical Application Scenarios
Off-grid Solar Storage: Small-scale residential solar rooftops, remote telemetry equipment stations, and traffic signaling power blocks.
Marine & Leisure RV: Deep-cycle house batteries for caravans, overland vehicles, campervans, and 12V trolling motors.
Industrial Backup Power: Emergency LED lighting paths, localized UPS systems, and security surveillance networks.

FAQ
Q: How does this 12V 50Ah LiFePO4 battery handle high-amperage inrush currents when starting inductive loads?
A: The integrated 50A BMS features a programmed delay curve that tolerates transient peak inrush currents up to 100A for exactly 5 seconds. If the inductive load exceeds this parameter, the OCP circuit triggers an automated shutdown to safeguard the internal cells, requiring a load disconnection to reset.
Q: What is the precise linear capacity degradation rate of this cell matrix after 3000 thermal cycles?
A: Operating at 0.5C charge/discharge rates under a controlled 25°C ambient environment with 100% Depth of Discharge, the Grade A chemistry maintains $\ge$82% of its initial 50Ah capacity. At 80% DOD, the retention metric remains above 80% after 6000 cycles.
Q: What is the minimum order quantity for custom private-label ABS casing and custom silk-screened logos?
A: The factory MOQ for direct laser-marking or customized silk-screened brand logos on our standard black or blue ABS enclosure is 50 units. For entirely custom toolings or specific corporate enclosure colors, the development run requires a minimum commitment of 500 units.
Call to Action (CTA)
Request a precise system wiring diagram and wholesale project quote within 24 hours. Batch OEM samples available for quality testing. Contact the Xiamen Hemao Industry engineering team directly at sales@hemaosolarpv.com to submit your specific parameter requirements.
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