
STP-200/300/400 Series Instruction Manual
10.1 Specifications for the External Battery
When you use external batteries, select one in accordance with the specifications
given in Table 10.1.
◇ If you use external batteries which do not conform to the
specifications, battery backup will not function during a power failure
which could result in damage to the STP pump.
Table 10.1 Specifications for the External Battery
Item Specifications
Capacity (Ah) 4.5 or more
Voltage (V) 24
Current (A) 3
Operation time (minutes) Approx. 15
Operation frequency (times) Continues 2 or more
Charging voltage (V) 27.3
It is recommended to use PORTALAC Series Small-Size Sealed Lead-Acid
Battery manufactured by Japan Storage Battery Co., Ltd. as an external battery.
10-2
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