Dyness Tower Expansion Instructions

Important Information & Safety

The installation and any related measurements for the Dyness Tower system should only be performed by professional and qualified electricians. This document serves as a brief guide for battery expansion and does not replace the original user manual. Due to the nature of lithium iron phosphate batteries, newly added modules may initially be less active than existing ones. Small State of Charge (SOC) jumps during subsequent use are normal and typically rebalance after 5 to 10 cycles.

Note: High Voltage! Improper handling can cause danger and damage.

System Capacity Expansion

1. Using an Inverter for Module Expansion

This procedure illustrates expanding a Tower T7 system to a Tower T10 configuration.

1. Discharge: Use an inverter to discharge the original Tower system until its SOC is 20% or less.

2. Add Module: Connect the new battery module to the Tower T7 system to create the Tower T10 configuration.

3. Charge Expanded System: Use the inverter to charge the Tower T10 system until both the BDU and the newly added module reach 100% SOC.

4. Isolate New Module: Disconnect the newly added module from the Tower T10 system.

5. Rebalance Original System: Discharge the original Tower T7 system to a SOC between 90% and 99%. Then, continue charging until the inverter indicates 100% SOC.

6. Final Integration: Reconnect the new module to the system. The expansion is now complete.

2. Using a DC Charger for Expansion

This method details expansion using a DC charger.

1. Initial Charge: Use an inverter to charge the original Tower system to 100% SOC.

2. Prepare New Module: Install the new module with its BDU and Base.

3. Charge New Module: Connect a DC charger to the new module. A relay disconnection sound in the BDU or a charging current of 0 indicates the battery SOC has reached 100%. Recommended charging parameters: Charging voltage 108V, Charging current 5A.

4. Final Integration: Add the new module back into the system. The expansion is complete.