Hitachi UC 24YJ, Технические данные и руководство по обслуживанию

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5-4-2. Serial numbers of batteries
The serial number of a battery is indicated on the name plate or marked on the upper case of the battery.
Indication on the name plate of the battery
The numeral indicated at the serial number column means the last digit of the production year and the number
of dots (total of 12) means the production month.
Example) Figure 16 shows the case when the production date is April 1998 (12 - 8 = 4 (April)).
Serial number column
Fig. 16 Name plate
Marking on the upper case of the battery
The serial number is indicated with four digits (the last two digits of the production year + production week) by
marking.
Example) Figure 17 shows the case when the production date is April 1998 (the 15th week = April).
Surface of the upper case
Marking of serial number
Fig. 17 Upper case of battery
9815