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Appendix 1
1)Above diagram show multiple sets of GL48100s parallel operation solution. However, it is not the best
solution.
2)If possible, the power cable length from every battery set to the inverter should be the same.
Otherwise, each set's charging / discharging current will have some difference, which leads to bad
effects on the battery’s performance.
3)Each battery set’s communication cable’s topological structure should be bus type. Please use the master
battery set as the middle point.
If one GL48100 lost its communication with the inverter, please try to add a 120Ω terminal resistance or a
repeater.
4)If the parallel operation battery’s quantity is more than 9, please contact GT Powertank for a customized
solution.
Appendix 2
Above is the wiring diagram for multiple GL48100 wall-mounting parallel operations.
5)If possible, the power cable length from every battery set to the inverter should be the same.
Otherwise, each set's charging/discharging current will have some difference, which leads to bad effects
on the battery’s performance.
6)Each battery set’s communication cable’s topological structure should be bus type. Please use the
master battery as the middle point. If there is one GL48100 that lost its communication with the
inverter, please try to add a 120Ω terminal resistance on it.
7)For wall-mounting GL48100, we do not recommend operate them in parallel.
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