SunSynk SUNSYNK-8K-SG01LP1, Installer Manual

Page: 19 / 78

4.7. Connecting a Lithium Battery
When connecting more than one battery, ensure they are set in the configuration
of ‘master and slave’.
When connecting a Lithium battery, follow the connection steps below and check ‘Setting up a
Lithium Battery’ to connect with an inverter.
1. Connect the correct diameter of cable in accordance with the battery manufacture specifi-
cations along with recommended safety devices.
2. Connect a communication cable from the batteries to the inverter in compliance with the
battery manufacturer guidelines. The cables have two ends, one to be specifically connect-
ed to the BMS and another to be connected to the inverter, do not connect them incorrectly.
3. Connect the power and communication cables to the inverter correctly.
4.8. Battery Temperature Sensor Connection
Without a remote temperature sensor, lead-acid batteries may undercharge or overcharge de-
pending on the ambient temperature of the installation environment. This may result in a fire
hazard.
Depending on the battery type, the inverter should be capable of controlling the
batteries BMS. Therefore, you need to set the protocol of the BMS on both the bat-
tery and the inverter.
When using more than one battery, the first battery will be the master, and the other
batteries will be the slaves. Please, check the battery manufacturer specification
for proper operation.
To verify if the battery is actually communicating access the Li BMS menu as de-
tailed in section ‘Setting Up a Lithium Battery’ and check whether the values are
realistic or not. It is important that the charge and discharge limits in that page
match the numbers expected for the number of batteries physically connected.
Page | 19 Hybrid Inverter | Installer Manual