TBB BS1225-3 Manual page 7

Float charging and Recycle charging program guarantees your battery will be properly maintained
in the event of long-time fixed installation.
 Battery temperature compensation
Battery temperature is a key factor in correct charging, the charging formula must be adjusted
(automatically and in real time) according to the actual battery temperature to ensure that
battery are fully charged but not overcharged or undercharged.
All charging voltages recommended by battery manufacture are in fact only applied at 20℃ -
25℃.
The battery temperature and voltage sensor supplied with BS charger measures the
temperature of battery and automatically adjusts in real time to properly charge your batteries at
compensation rate of – 4mv / ℃ / cell.
In case the battery temperature sensor is not present, BS charger will use 25℃ as default
setting.
 Voltage compensated charging
Through the battery temperature and voltage sensor, BS charger will automatically adjust its
output, compensating the voltage drop on the cable ensuring the correct charging current and
voltage is delivered the battery.
 Charging current adjustable
Using the multifunctional smart button, user can choose the different charging current
according the battery capacity. We recommend the charging current set as 10%-20% of battery
capacity (I=0.1C/0.2C) for lead acid battery and 30% of battery capacity for lithium battery.
 Slave battery charger for starter battery（In addition to 12V10A model）
Along with a powerful charger for stationery/service battery, BS battery charger also offers a
slave charger of max 3A to keep starter battery charged.
 Special silent design
User-friendly special silent design. The fan of charger will stop working after the charging
current drop to a predetermined level for a period of them. And it will then automatically resume
working if internal temperature increases.
Using the Silent button on the remote control (optional accessory), the BS battery charger will
automatically to reduce the output of the charger and stop the fan.
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BS Smart battery charger