BMS-Equipped 12V 300Ah LiFePO4 Battery Pack
300Ah Capacity & 12V Performance
Energy Output: Operates at 12V nominal (range: 10.8V–14.6V) with 300Ah capacity, totaling 3.6kWh of usable energy. This is sufficient to power:
A 300W appliance (e.g., medium fridge) for 12 hours.
12V DC systems (water pumps, air conditioners) in small off-grid homes for 24+ hours.
A 1000W inverter (for TVs, power tools) for ~3.6 hours.
Stable Voltage Under Load: Maintains consistent output even during high-demand use, preventing drops that can damage sensitive electronics like solar controllers or inverters.
Advanced BMS for Safety & Optimization
Comprehensive Protection: The built-in BMS acts as a robust safeguard, featuring:
Overcharge protection (shuts down at 14.6V) and over-discharge protection (cuts off below 10.8V) to prevent cell damage.
Overcurrent protection (150A continuous, 300A peak) and short-circuit prevention, reducing fire risks during heavy loads.
Temperature regulation (-20°C to 60°C), with thermal shutdowns in extreme heat or cold to avoid degradation.
Active Cell Balancing: Ensures uniform charge across 4 series LiFePO4 cells (3.2V each), maximizing capacity and preventing uneven wear-critical for extending the battery's lifespan.
State of Charge (SOC) Tracking: Includes an LCD display or LED indicators to monitor remaining power, eliminating guesswork for users.
LiFePO4 Chemistry Advantages
Extended Lifespan: Supports 3,000–5,000 deep cycles (80% depth of discharge), outlasting lead-acid batteries by 6–10x (10–15 years vs. 2–3 years for lead-acid).
High Energy Density: Weighs ~27–30kg (vs. 75–80kg for a lead-acid equivalent), making it easier to install in tight spaces like RV basements or cabin storage.
Low Self-Discharge: Loses only 2–3% of charge per month (vs. 10–15% for lead-acid), retaining energy for weeks-ideal for seasonal cabins or backup systems.
| Voltage | 12V/24V |
| Capacity | 100/200Ah |
| Cycle Life | >3000 cycles |
| Efficiency of Charge | 100% @0.5C |
| Efficiency of Discharge | 96~99% @1C |
| Charge Voltage | 14.6±0.2V |
| Charge Current | 60A |
| IP Class | IP65 |
FAQ
Q: How does the sputtering deposition process for thin film coatings work?
A: The sputtering deposition process is a key method for creating thin film coatings. It begins with placing a target material, which is the material we want to deposit as a coating, in a vacuum chamber. High-energy ions, usually generated by a plasma source, are then directed at the target. These ions bombard the target, causing atoms to be ejected from its surface. The ejected atoms travel through the vacuum chamber and deposit onto a substrate, which could be a piece of glass, metal, or semiconductor. By carefully controlling the sputtering parameters such as the ion energy, gas pressure, and deposition time, we can create thin films with a wide range of properties, such as conductivity, transparency, and hardness.
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