Vatrer 48V(51.2V) 100Ah LiFePO4 Lithium Solar Battery, 5kWh Battery, Max. 5120W Load Power, Bluetooth Version

Yes, our BMS has a low temperature protection cut-off function. It can protect the battery from low temperature damage and extend the battery life. The low temp cut off protection for charging is set at 0°C ± 4°C (32°F ± 7.2°F), and for discharging, it is set at -20°C ± 4°C (-4°F ± 7.2°F).

We recommend using a lithium iron phosphate 16-string (58.4V) charger to charge the battery. However, you also have two alternative options:

Scheme 2: You can use photovoltaic solar panels with an MPPT charge controller to charge the battery.

Scheme 3: You can use an inverter with a built-in AC to DC charging function to charge the battery pack.

A BMS (Battery Management System) is a critical component in lithium-ion batteries. It performs various functions, including:

Shutting off the battery in case of low or high voltage, low or high temperatures, or a short circuit to protect the cells and user from unsafe conditions.

Keeping all the cells balanced by reducing the charging rate in cells that have been topped off first, ensuring the cells are always in balance.

Our LiFePO4 lithium iron server rack batteries provide 5000+ cycles compared to 300-500 cycles in lead-acid batteries. The service life of LiFePO4 batteries is 8 to 10 times longer than standard lead-acid batteries.

Yes, our LiFePO4 batteries are safe. They are manufactured using Automotive Grade LiFePO4 Cells, which offer higher energy density, no memory effect, more stable performance, and greater power output. The stable Lithium Iron Phosphate chemical structure ensures that the batteries do not burn or explode even at high temperatures, short circuits, impacts, or drops.

Our batteries have the highest level of safety based on UL Testing Certificate for the cells inside the battery. They do not contain any heavy metals or rare metals, making them environmentally friendly.

All our products' lithium batteries have a unique built-in Battery Management System (BMS) that protects them from overcharge, deep discharge, overload, overheating, short circuit, and low self-discharge rate. The BMS also has a high-temperature disconnect function to safeguard the battery by automatically disconnecting it when the internal temperature reaches 75°C (167°F).

We apologize, but our battery cannot be used to jump-start a vehicle. However, it can be used as a power supply for automobiles. You can recharge your car using a Jackery power supply cord, which is available for purchase separately.

The current parameter settings are the default settings from mainstream BMS suppliers. Here are several key points to understand why this setting is used:

1. Factory Settings: The default parameters are designed not to damage the cells or affect their cycle life. Due to the significant dynamic differential at the end of battery charging and discharging cycles, these settings help prevent frequent occurrences of overvoltage and undervoltage alarms in individual cells.

2. Customization: For customers who need to change the protection parameters, we can assist in making the necessary adjustments.

3. Timing Settings: The maximum charging and discharging delay is set to 10 seconds, with a release time of 32 seconds.

Temperature Sensing Placement and Protection:

1. NTC (Negative Temperature Coefficient): Placed on top for more accurate detection of ambient temperature, ensuring protection against high and low temperature conditions.

2. PTC (Positive Temperature Coefficient): Monitors and protects against high temperatures in the battery.

3. Multiple Protections: The BMS is configured with multiple protections to prevent safety issues in case a single detection fails.

This setup ensures both the longevity and safety of the battery system while maintaining optimal performance.

The Vatrer 48V lithium battery contains 16 cells.

The 48V lithium battery package does not include a charger. Therefore, you will need to purchase a suitable charger separately. Here are some charging methods and recommendations for your battery pack:

Battery Charger:

Scheme 1: Use a lithium iron phosphate 16-string (58.4V) charger to charge the battery pack.

Scheme 2: Utilize photovoltaic solar panels to charge the battery through MPPT (Maximum Power Point Tracking).

Scheme 3: You can use an inverter to charge the battery pack. Please note the inverter must have a built-in AC to DC charging function.

Recommended Charging Voltage:

Use a 58.4V lithium battery charger to maximize battery capacity.

Recommended Charging Voltage Range: Between 56.8V to 58.4V.

If using an inverter (MPPT) to connect to our battery pack, please consider the following data:

20A (0.2C): The battery will be fully charged in around 5 hours to 100% capacity.

50A (0.5C): The battery will be fully charged in around 2 hours to 97% capacity.

Charge Limits and Safety Parameters:

Charging Limit Voltage: 58.4V

Overvoltage Disconnection Voltage: 60V

Overvoltage Reconnection Voltage: 56.8V

Discharge Parameters:

Low Voltage Disconnection Voltage: 43.2V

Low Voltage Reconnection Voltage: 46.4V

Undervoltage Warning Voltage: 49.6V

It's essential to use the appropriate charger and adhere to the specified voltage limits to ensure the safety and longevity of your battery. Proper charging practices help maintain the battery's health and optimize its performance.

We updated the appearance of the product in October 2024, and the blue color is no longer available. However, the battery parameters remain unchanged, so you can purchase with confidence.