Installation and Operation Guide for Pylontech RT12100B Batteries

Connecting Batteries in Series

This section details the process of connecting multiple Pylontech RT12100B batteries in series to increase voltage. Up to 4 batteries can be connected in series.

Connection Steps:

1. Connect the Negative Terminal (-) of the first battery to the Positive Terminal (+) of the second battery.
2. Connect the Negative Terminal (-) of the second battery to the Positive Terminal (+) of the third battery, and so on.
3. Finally, connect the Positive Terminal (+) of the first battery and the Negative Terminal (-) of the last battery to the system.

Series Configuration Voltage Recommendations

Connecting Batteries in Series & Parallel

For systems requiring higher capacity and voltage, batteries can be connected in a series and parallel configuration (Max 4S4P). To avoid triggering battery protection due to large voltage differences, it is recommended to first connect batteries in parallel and float charge them for 24 hours after a full charge before proceeding with the series and parallel connection.

Connection Order: When connecting batteries in series and parallel, connect them in series first, and then in parallel.

System Information: To read battery system information via the Pylontech APP, the maximum number of batteries connected in the system shall not exceed 16.

Post-Installation Check

After installation, please verify that all positive and negative connections are correct.

Charging

Charge the battery using a charger or charge controller compatible with lithium iron phosphate batteries. A charger with a power of more than 100 W is recommended.

Charger Voltage Range: 14 V ~ 14.4 V.

Recommended Charging Temperature

50°F ~ 95°F (10°C ~ 35°C)

Charging Time: Approximately 2 hours to fully charge a battery with a current of 50 A.

Max. Continuous Charging Current: 100 A

Discharging

The battery discharges at a constant current of 50 A (Max) until the battery voltage reaches 10.8 V.

Recommended Discharging Temperature

50°F ~ 95°F (10°C ~ 35°C)

Max. Continuous Discharging Current: 100 A

Battery Storage

Follow these steps for proper battery storage:

1. Charge the battery to 40% ~ 70%.
2. Disconnect the battery from the system.
3. Store the battery in a well-ventilated, clean, dry area with temperatures between 41°F and 104°F (5°C ~ 40°C).

Charge the battery at least once every 6 months to prevent overdischarge.

Storage Temperature Guidelines

• Recommended storage temperature: 23°F ~ 95°F (-5°C ~ 35°C)
• Storage up to 1 month: 4°F ~ 140°F (-20°C ~ 60°C)
• Storage up to 3 months: 14°F ~ 95°F (-10°C ~ 35°C)
• Extended storage time: 59°F ~ 95°F (15°C ~ 35°C)

Battery Protections and Management

Protection Features:

• Over-voltage
• Under-voltage
• Over-current
• High/Low Temperature
• Short Circuit

Management Features:

• Cell Balancing
• Smart Charging Mode
• SOC Calculation
• Operation Log
• APP Real-time Monitoring

FCC Regulations

Changes or modifications not expressly approved by the manufacturer could void the user's authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

FCC Conditions

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

FCC RF Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. To comply with FCC RF Exposure compliance requirements, this grant is applicable to only Mobile Configurations. The antennas used for the transmitter must be installed to provide a separation distance of at least 20 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter.