La Crosse Technology BC-900 User Manual

 

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INTRODUCTION: 
Congratulations on purchasing this intelligent charging unit which enables quick and optimum charging to “AA” and “AAA” rechargeable batteries. With 
charging, discharging, refreshing and capacity test functions as well as individual LCD displays for charging compartments; this charging unit is reliable, 
user-friendly and ideal for use in the home, office or on a journey. 
 
The Charging unit   
 
 
 
 
 
 
 
 
CAUTIONS: 
1. 

The charger is restricted to charging NiCd and NiMH rechargeable batteries only. Never use this charger for other types of batteries such as 
alkaline, lithium, carbon zinc or other types that are not specified. 

2. 

The charging unit shall only be used at normal indoor room conditions. 

3. 

Always follow the charging instructions for the rechargeable battery. Observe the recommended charging current of the rechargeable batteries. 
Never use a charging current higher than recommended in the charging process. 

4. 

Never use any power cable and transformer other than those originally supplied with the charging unit. 

5. 

The rechargeable batteries may become hot during charging (especially when a high charging current is chosen). User shall take extra care when 
taking out the batteries after charging.       

6. 

Unplug the charging unit from the power source when not in use.   

 
FEATURES: 
The Charging unit 

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Charging rechargeable battery in various current (200, 500, 700 or 1000 mA). The charging current can be set up to 1500 or 1800 mAh when two 
batteries are charged. 

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Fast charging – 70 mins to charge up 2000 mAh batteries   

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Individual LCD display for all compartments 

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Charging both “AA” and “AAA” rechargeable batteries simultaneously 

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Overheat detection to protect rechargeable batteries from over-charging 

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Minus delta voltage (-dV) detection for charge termination 

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Damaged batteries detection 

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Discharge mode (first discharging and then charging) to remove memory effect of rechargeable batteries 

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Refreshing old rechargeable batteries by discharging/ charging cycles 

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Test function to check the capacities of rechargeable batteries   

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Charging/ Discharging functions can be launched independently and simultaneously to each rechargeable battery in the compartments 

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Various display modes during charging/ discharging – the charging current (in mA), time elapsed (in hh:mm), the terminal voltage (in V) and 
accumulated capacities (in mAh or Ah) 

 
INVENTORY OF CONTENTS 
1. Charging 

unit 

2. Transformer 
3. 

Size “C” battery adapter (4) & Size “D” battery adapter (4) 

4. Holding 

Bag 

5. 

“AA” rechargeable battery (4) & “AAA” rechargeable battery (4)   

6. Instruction 

Manual 

 
FUNCTION KEYS: 
There are three easy-to-use function keys and four number keys on the charging unit:     
 
 
 
 
 
 
 
 
 
Compartment Number key 
Press and release the Number key to select a particular battery compartment for charge modes and/or display mode adjustment.   
 
MODE key   
The mode key shall first be pressed and held for 1 second to activate the mode change. The subsequent pressing of the mode key will toggle between 
the “Charge”, “Discharge”, “Test” and “Refresh” mode. To change the operating mode for an individual rechargeable battery, first press the corresponding 
NUMBER key then press the MODE key.   
 
 
DISPLAY key 
Press and release to select the displays of the charging current (in mA), time elapsed (in hh:mm), the terminal voltage (in V) and accumulated capacities 
(in mAh or Ah) during the charging or discharging process.   
To change the display content of a particular rechargeable battery, first press the corresponding NUMBER key then press the DISPLAY key. 
 

Compartment 
Number keys 

DISPLAY 

MODE key 

CURRENT key