Backup battery production batch number
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
It''s almost always the first number and first letter. B-7 M 2-7 A Y U S E U. S.PAT E N T N O . 5, 2 9 8, 3 5 0 2/07 READING BATTERY DATE CODES DID YOU KNOW: • All major battery manufacturers use a similar date code system. • Most automobile owners want to replace their battery when it is 3–5 years old.