The Limetime 12V 50Ah LiFePO4 battery is a high-performance lithium iron phosphate power solution offering exceptional cycle life (2,000–5,000 cycles), lightweight design (30% lighter than lead-acid), and stable thermal performance. Ideal for RVs, solar systems, and marine applications, it features built-in BMS protection, zero maintenance, and 10-year lifespan, outperforming traditional batteries in energy density and safety.
Deespaek 12V LiFePO4 Battery 100Ah
How Does the Limetime 12V 50Ah LiFePO4 Battery Compare to Lead-Acid Batteries?
The Limetime LiFePO4 battery lasts 5x longer than lead-acid batteries, with 2,000+ cycles at 80% depth of discharge vs. 300–500 cycles for AGM. It weighs 14 kg (30% lighter), delivers 50Ah usable capacity (vs. 25Ah in lead-acid due to 50% discharge limits), and operates from -20°C to 60°C. Unlike lead-acid, it requires no watering and maintains stable voltage during discharge.
What Are the Key Specifications of the Limetime 12V 50Ah Battery?
Key specs include: 12.8V nominal voltage, 50Ah capacity (640Wh energy), 200A max continuous discharge, 100A recommended charge current. Built-in BMS protects against overcharge/over-discharge (±0.5V cutoff), short circuits, and temperature extremes. Dimensions: 330x173x220mm. 14kg weight. 95% round-trip efficiency vs. 80% for lead-acid. Self-discharge rate: 3% monthly vs. 5% for AGM.
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| Parameter | Limetime 50Ah | Standard AGM |
|---|---|---|
| Cycle Life | 2,000+ | 500 |
| Weight | 14kg | 22kg |
| Charge Efficiency | 95% | 80% |
Where Is the Limetime 12V 50Ah Battery Most Commonly Used?
Primary applications include solar energy storage (supports 1,200W solar arrays), RV house batteries (powers fridges/LEDs for 2–3 days), marine trolling motors (6–8 hours runtime), and UPS backup systems. Its vibration resistance makes it suitable for off-road vehicles, while the wide temperature range enables Arctic expeditions and desert solar installations.
Why Is the LiFePO4 Chemistry Advantageous for This Battery?
LiFePO4’s olivine crystal structure prevents thermal runaway, achieving UL1642 safety certification. It maintains 80% capacity after 3,000 cycles vs. 800 cycles for NMC. Operating at 3.2V/cell reduces cell imbalance risks. The chemistry enables 1C fast charging (0–100% in 1 hour) and retains 95% capacity at -10°C, outperforming NMC’s 70% low-temp performance.
How Should You Properly Charge the Limetime 12V 50Ah Battery?
Use a LiFePO4-compatible charger with 14.2–14.6V absorption voltage and 13.6V float. Bulk charge at 0.5C (25A) for optimal speed/longevity. Avoid constant voltage charging above 14.6V – the BMS will disconnect at 14.8V±0.2V. For solar setups, MPPT controllers with lithium profiles (e.g., Victron SmartSolar) maintain 90%+ charging efficiency. Never use lead-acid charging presets.
What Safety Features Protect the Limetime 12V 50Ah Battery?
The multi-layer BMS provides 11 protections: over-voltage (15V cutoff), under-voltage (10V), over-current (250A pulse/200A continuous), short circuit (μs response), cell imbalance (±20mV correction), high/low temp charge (-20°C–60°C), and reverse polarity. Flame-retardant ABS case (UL94 V-0) withstands 10J impacts. IP65 rating protects against dust/water jets.
Advanced thermal sensors monitor individual cell temperatures every 50 milliseconds, automatically throttling charge rates if variances exceed 5°C between cells. The dual-stage disconnect system separates power contacts through electromagnetic relays for high-current scenarios, while MOSFETs handle lower-current protections. This layered approach ensures failsafe operation even in extreme conditions like vehicular accidents or inverter overloads.
Can the Limetime Battery Integrate with Solar Power Systems?
Yes, it’s ideal for solar with 3,000+ cycle life at 80% DoD. A 50Ah unit stores 640Wh – sufficient for 400W solar arrays (6 hours sun = 2.4kWh daily). Compatible with all major inverters (Victron, Renogy) via CANBus communication. Supports parallel connections up to 4 units (200Ah/25.6V) for 6.5kWh systems. Built-in self-consumption mode prioritizes solar over grid.
How Does Temperature Affect the Battery’s Performance?
At -20°C, capacity reduces to 80% but permits charging (unlike NMC). Optimal range: 0°C–45°C. High temps (50°C+) accelerate aging – capacity loss is 2%/year at 25°C vs. 4%/year at 45°C. Internal heaters (optional) maintain -30°C operation. Thermal imaging shows 3°C max cell variance during 1C discharge, preventing hotspots.
| Temperature | Capacity Retention | Charging Allowed |
|---|---|---|
| -20°C | 80% | Yes (with heater) |
| 25°C | 100% | Yes |
| 50°C | 95% | Reduced rate |
What Maintenance Does the Limetime 12V 50Ah Battery Require?
Zero routine maintenance – no acid refilling or terminal cleaning needed. For storage, keep at 50% SOC in 15°C–25°C environments. Check terminal torque annually (8–10Nm). BMS firmware updates (via USB) every 2 years optimize performance. Use dielectric grease on terminals if exposed to saltwater. Capacity tests every 500 cycles verify health.
“The Limetime 12V 50Ah sets a new standard for entry-level LiFePO4 batteries. Its use of automotive-grade prismatic cells instead of standard pouch cells reduces swelling risks by 70%. The hybrid BMS topology – balancing during charge and discharge – maintains cell variance under 15mV, which is critical for longevity in multi-bank systems.”
– Senior Energy Storage Engineer, PowerTech Solutions
Conclusion
The Limetime 12V 50Ah LiFePO4 battery delivers professional-grade performance for renewable energy and mobile power users. With its military-grade safety systems, 10-year design life, and adaptive BMS intelligence, it outperforms traditional batteries in virtually every metric while requiring minimal user intervention. For sustainable off-grid power, it’s an investment that pays dividends through decades of reliable service.
FAQs
- Can I use my existing lead-acid charger with this battery?
- No – lead-acid chargers risk overcharging. Use only LiFePO4-specific chargers with voltage limits of 14.6V.
- How many batteries can I connect in parallel?
- Up to 4 units (200Ah total) using 25mm² cables. Ensure terminals are torqued to 10Nm and batteries are within 10% SOC before connecting.
- Does cold weather permanently damage the battery?
- No – capacity reduction below 0°C is temporary. Avoid charging below -20°C unless using the optional self-heating model.