5. Please connect batteries on the left side with wires as below:
Note:
BAT No.9 (-)
BAT No10. (+) ; BAT No.10 (-)
BAT No11. (+)
BAT No.11 (-)
BAT No12. (+) ; BAT No.12 (-)
BAT No13. (+) ;
BAT No.13 (-)
BAT No14. (+) ; BAT No.14 (-)
BAT No15. (+) ;