Description
This LiFePO4 (LFP) cylindrical cell battery has a nominal voltage of 12.8V and a nominal capacity of 100Ah, providing 1280Wh of energy. It supports a maximum continuous charge and discharge current of 100A, with a max charge voltage of 14.6V and a discharge cut-off voltage of 10V. The battery offers a long cycle life of over 4000 cycles at 80% depth of discharge (0.5C) and a low self-discharge rate of 3% per month.
The compact design measures 395 x 110 x 286 mm (15.6 x 4.3 x 11.3 inches) and weighs only 9 kg (20 lbs), with an IP65 rating for dust and water resistance. It allows up to 6 parallel connections for scalable capacity. The battery operates safely across a wide temperature range: charging from 0°C to 60°C and discharging from -20°C to 65°C. The shell is made of durable ABS material, and the terminal type is M8.
Equipped with a JBD/DALY smart BMS, this battery includes vital protections such as overcharge, over-discharge, overcurrent, short circuit, and temperature monitoring to ensure safety and longevity. Optional upgrades include self-heating, Bluetooth, app connectivity, 4G, GPS, WiFi, RS485, RJ45, SOC LCD display, circuit breaker, power switch, cooling fan, active balance, and solar MPPT. It comes with a 3-year warranty, a 10-year design life, and certifications including UL 1642, IEC 62619, CE, UN38.3, and MSDS.
How Does a 12V 100Ah Cylindrical LiFePO4 Battery Power Your Energy Needs?
A 12V 100Ah cylindrical LiFePO4 battery delivers reliable, long-lasting power with superior safety and efficiency compared to traditional lead-acid batteries. It is lightweight, supports deep cycling, and integrates an advanced battery management system (BMS) to protect against overcharge, discharge, and temperature extremes. Ideal for RVs, solar systems, marine use, and backup power, it offers up to 4000+ cycles and excellent environmental benefits.
What are the key specifications of a 12V 100Ah cylindrical LiFePO4 battery?
A typical 12V 100Ah cylindrical LiFePO4 battery operates at a nominal voltage of 12.8V and provides 100 amp-hours of capacity, equating to approximately 1280 watt-hours of energy. It usually features a maximum continuous discharge current of 100A and a maximum charge current around 50A. The battery weighs between 22 to 28 lbs, significantly lighter than lead-acid alternatives, and measures roughly 13 x 8.5 x 7 inches. Internal resistance is low, often under 10 milliohms, enabling efficient power delivery. These batteries include a built-in Battery Management System (BMS) for safety and performance optimization.
Power and Weight Comparison of 12V 100Ah Batteries
| Feature | LiFePO4 Battery | Lead-Acid Battery |
|---|---|---|
| Nominal Voltage | 12.8 V | 12 V |
| Capacity | 100 Ah | 100 Ah |
| Weight | 22-28 lbs | 60-70 lbs |
| Cycle Life | 3000-6000 cycles | 500-1000 cycles |
| Depth of Discharge | 90-100% | 50-60% |
| Charging Time | 1-2 hours | 6-8 hours |
How does a LiFePO4 battery compare to traditional lead-acid batteries?
LiFePO4 batteries outperform lead-acid batteries in multiple ways: they are lighter—up to 70% less in weight—have a longer lifespan with 3000 to 6000 charge cycles versus 500-1000 for lead-acid, and allow deeper discharges (up to 100% depth of discharge) without damage. They charge faster—up to 5 times quicker—and maintain a consistent voltage output, improving device performance. Additionally, LiFePO4 chemistry is safer, with lower risk of thermal runaway, and requires zero maintenance, unlike lead-acid batteries which need regular water checks and equalization.
What are the main applications of 12V 100Ah LiFePO4 batteries?
These batteries are widely used in off-grid solar power systems, RVs, marine vessels, electric vehicles, emergency backup power, and portable power stations. Their lightweight and compact design make them ideal for mobile applications, while their long cycle life and high efficiency suit stationary energy storage. They are also increasingly popular in residential solar setups and UPS systems due to their reliability and safety features.
How does the battery management system (BMS) enhance safety and performance?
The integrated BMS monitors voltage, current, and temperature of each cell to prevent overcharge, over-discharge, short circuits, and overheating. It balances cell charge to maximize battery life and ensures safe operation under extreme conditions. Low temperature protection prevents charging below freezing, which can damage cells. The BMS also communicates with external devices for real-time monitoring and diagnostics, enhancing user control and safety.
What are the recommended charging and discharging parameters for these batteries?
Optimal charging voltage typically ranges from 14.2V to 14.6V, with a maximum charge current of about 50A. Discharge cut-off voltage is usually set around 10.5V to 11.1V to protect battery health. Charging temperatures should be between 0°C and 45°C (32°F to 113°F), and discharging can safely occur from -20°C to 60°C (-4°F to 140°F). Users should avoid deep discharges below recommended cut-off voltages to maximize cycle life.
How long can you expect a 12V 100Ah LiFePO4 battery to last?
These batteries typically provide between 3000 to 6000 full charge-discharge cycles, translating to a lifespan of 10 years or more under normal use. The long cycle life is due to the stable LiFePO4 chemistry and advanced BMS protections. Proper charging practices and avoiding extreme temperatures further extend battery longevity.
What are the operating temperature ranges and storage conditions?
LiFePO4 batteries operate efficiently in a wide temperature range: discharging safely from -20°C to 60°C and charging between 0°C and 45°C. Storage temperature recommendations vary but generally range from -20°C to 45°C for short-term storage, with cooler temperatures preferred for long-term storage to reduce self-discharge. The self-discharge rate is low (2-3% per month), making them suitable for seasonal or backup use.
How do cylindrical LiFePO4 cells differ from other cell formats?
Cylindrical cells are round, robust, and offer excellent mechanical stability and thermal management compared to prismatic or pouch cells. They are easier to manufacture consistently and often have better heat dissipation, which improves safety and longevity. Their shape allows for modular battery pack designs, making them popular in high-performance applications requiring durability and reliability.
What environmental benefits do LiFePO4 batteries provide?
LiFePO4 batteries are more environmentally friendly than lead-acid or other lithium chemistries because they use less toxic and more abundant materials. They have a longer lifespan, reducing waste, and their stable chemistry minimizes the risk of hazardous leaks or fires. Additionally, they are fully recyclable, and their high efficiency reduces energy losses, contributing to greener energy storage solutions.
How can users maintain and extend the lifespan of their LiFePO4 battery?
To maximize lifespan, users should avoid deep discharges below 10.5V, charge within recommended voltage and temperature ranges, and store batteries in cool, dry environments. Using a compatible charger and monitoring battery status via a BMS or app helps prevent damage. Regularly balancing cells and avoiding prolonged exposure to extreme temperatures also preserve battery health.
