
STP-200/300/400 Series Instruction Manual
10.3 How to Charge the External Battery
The STP control unit is equipped with a constant voltage (27.3 V) circuit and a
constant current (0.3 A) circuit for charging the battery.
The battery is charged while the power is "ON," regardless of the operation state
of the STP pump.
After a power failure, charge the battery for approx. 12 times the BATTERY
BACKUP time. For example, if the BATTERY BACKUP time is 15 minutes, it
takes approx. 3 hours to charge the battery.
If a power failure occurs 2 times within 3 hours, charge the battery for more than
3 hours before starting the STP pump.
10.4 How to Dispose of the External Battery
Dispose of or collect worn-out batteries in accordance with the guidelines given
by each national and/or local government. If you procure the batteries, dispose of
them according to the guidelines given by the battery manufacturer.
◇ Pay attention to short-circuiting or leakage of the batteries when
disposing of them.
◇ To prevent the batteries from short-circuiting, remove the lead wires
and connectors from the batteries.
Cut the lead wires one by one so as not to cause a short-circuiting.
◇ Coat the conductive part of the batteries with tape.
◇ It is recommended to dispose of worn-out batteries after discharging
them thoroughly.
◇ Batteries manufactured by Japan Storage Battery Co., Ltd. will be
collected by Japan Storage Battery Co., Ltd. For detailed
information, contact Japan Storage Battery Co., Ltd. Or Service
office.
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