Module Serial Number Label
- The module serial number label (1) for the Li-ion battery is affixed as shown in the figure below.
- The module serial number label contains the date of manufacture of the Li-ion battery.MONTH/DATE
Label Month Date 1 1 1 2 2 2 3 3 3 4 4 4 5 5 5 6 6 6 7 7 7 8 8 8 9 9 9 A 10 10 B 11 11 C 12 12 D - 13 E - 14 F - 15 G - 16 H - 17 I - - J - 18 K - 19 L - 20 M - 21 N - 22 O - - P - 23 Q - 24 R - 25 S - 26 T - 27 U - - V - 28 W - 29 X - 30 Y - 31 Z - - - If a module must be replaced, check the module serial number label. If the date of manufacture is more than 17 months ago, replace all modules at the same time.
Method of judging whether or not to replace all modules
Time since manufacture Action to take 17 months or less Replace only the malfunctioning module. More than 17 months Replace all modules.