Multiple batteries in parallel
Connecting multiple batteries in series/parallel
• All batteries need to be the same model and age.
• Connect a maximum of 5 batteries or battery series strings in parallel.
• Each battery needs to have been fully charged individually.
• Fuse each series string on the positive side.
• Multiple batteries in series/parallel Connect the system cables diagonally to ensure an equal current path through each battery
string.
• Take care that cross-sectional area of the system cable is equal to the cross-sectional area of the string cable times the number
of strings.
• Do not interconnect the intermediate battery to battery connections of two or more battery series strings.
• Fuse the positive main cable going to the battery bank.
• Connect the battery bank to the system.
• Do not interconnect midpoints or other between string points For more information on how to construct a series/parallel battery
DC
system
Multiple batteries in series/parallel
Do not interconnect midpoints or other between string points
4.7. Connect the BMS
Each battery has two BMS cables. Depending on the battery model, the BMS cables are located on either side or on one side of
the battery.
BMS cables on either side BMS cables on one side
One of the cables has a female 3-pole connector and the other cable has a male 3-pole connector. The BMS also has the same
male and female connectors.
Lithium Battery Manual
Page 18
Installation
