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5

TRICKLE CHARGING 

After the rechargeable battery is fully charged in any of the operating modes, the charger will give a small amount of current to the rechargeable 
batteries to maintain the fully charged level. This mode is automatically launched after rechargeable batteries are fully charged and kept in the charging 
unit. The signal “Full” will be displayed on the LCD.   

 
DISPLAY MODE INFORMATION 

The user can use different display modes to monitor the rechargeable battery condition during the different operations (see below figure and Table 4 to 
7). 

 
 
 
 
 
 
 
 
 
 
 
Table 4. Various displays in Charge Mode 

Various displays (toggled by pressing DISPLAY 

key) 

Stage in 

Charge 

mode

 

Voltage (V) 

Current 

(mA) 

*Time 

(hh:mm) 

Capacity 

(mAh/ Ah) 

During 

charging 

Charging 

current 

Full stage 

Instantaneous 

Battery 
voltage 

Trickle 

charging 

current 

Charging 

time 

elapsed 

Accumulated 

capacity 

 
Table 5. Various displays in Discharge Mode 

Various displays (toggled by pressing DISPLAY key)

Stage in 

Discharge 

mode

 

Voltage (V) 

Current 

(mA) 

*Time 

(hh:mm) 

Capacity 

(mAh/ Ah) 

During 

discharging 

Discharging 

current 

Discharging 

time elapsed 

Capacity 

during 

discharging 

During 

charging 

Charging 

current 

Full stage 

Instantaneous 

Battery 
voltage 

 

Trickle 

charging 

current 

Charging 

time elapsed 

Accumulated 

capacity 

 
Table 6. Various displays in Refresh Mode 

Various displays (toggled by pressing DISPLAY key)

Stage in 

Refresh 

mode

 

Voltage (V) 

Current 

(mA) 

*Time 

(hh:mm) 

Capacity 

(mAh/ Ah) 

During 

discharging 

processes 

Instantaneous 

Battery 
voltage 

Discharging 

current 

Discharging 

time elapsed 

Capacity 

during 

discharging 

During 

charging 

processes 

Instantaneous 

Battery 
voltage 

Charging 

current 

Charging 

time elapsed 

Capacity 

determined in 

last time 

discharging 

Full stage 

Instantaneous 

Battery 
voltage 

Trickle 

charging 

current 

Elapsed time 

of last 

discharging 

Maximum 

battery 

capacity 

determined in 

discharging 

 
Table 7. Various displays in Test Mode 

Various displays (toggled by pressing DISPLAY key)

Stage in 

Test mode

 

Voltage (V) 

Current 

(mA) 

*Time 

(hh:mm) 

Capacity 

(mAh/ Ah) 

During 

charging 

Charging 

current 

Charging 

time elapsed 

“--- mAh”   

During 

discharging 

Discharging 

current 

Discharging 

time elapsed 

“--- mAh” 

During 2nd 

charging 

Charging 

current 

2nd charging 

time elapsed 

Capacity of 

the battery 

determined in 

discharging 

Full stage 

Instantaneous 

Battery 
voltage 

Trickle 

charging 

current 

Discharging 

time elapsed 

Capacity of 

the battery 

determined in 

discharging 

Different operating modes 

Different display modes are 
exhibited: Charging current, Time, 
Voltage and Capacity 

Summary of Contents for BC-900

Page 1: ...t detection to protect rechargeable batteries from over charging z Minus delta voltage dV detection for charge termination z Damaged batteries detection z Discharge mode first discharging and then charging to remove memory effect of rechargeable batteries z Refreshing old rechargeable batteries by discharging charging cycles z Test function to check the capacities of rechargeable batteries z Charg...

Page 2: ...ther hand when charging three or four rechargeable batteries at the same time user may select a charging current of 200 500 700 or 1000 mA The estimated time of charging by various charging current is tabulated in Table 1 Table 1 Charging Time with various charging current Size of battery Battery Capacity Charging current selected Estimated charging time 1800 75 min 1500 90 min 1000 2 hr 15 min 70...

Page 3: ...le batteries are restricted by the current setting of the first inserted rechargeable battery For instance if the first inserted rechargeable battery is set to charge at 700 mA then the second third and fourth rechargeable batteries can be only set to charging at a maximum current of 700 mA Therefore the user is advised to place the battery with the highest expected charging current in Compartment...

Page 4: ...e and Table 2 within 8 seconds after inserting the batteries Or the display will blink once to indicate the end of setting and the current cannot be changed afterward z It may take up to several days to finish the refreshing process depending on the selected discharging current z The maximum refresh current is 1000 mA and is not affected by the number of rechargeable batteries inserted TEST MODE I...

Page 5: ...nt Full stage Instantaneous Battery voltage Trickle charging current Charging time elapsed Accumulated capacity Table 6 Various displays in Refresh Mode Various displays toggled by pressing DISPLAY key Stage in Refresh mode Voltage V Current mA Time hh mm Capacity mAh Ah During discharging processes Instantaneous Battery voltage Discharging current Discharging time elapsed Capacity during discharg...

Page 6: ...ot make any repair attempts to the units Return it to its original point of purchase for repair by a qualified engineer Opening and tampering with the units may invalidate its guarantee z Do not expose the unit to extreme and sudden temperature changes this may lead to damage to the electronic parts in the unit SPECIFICATIONS Input voltage for AC DC adapter 100 240 VAC Charging current range 200 m...

Page 7: ...hnology Ltd authorized service center La Crosse Technology Ltd will pay reasonable return shipping charges to the owner of the product Your La Crosse Technology Ltd warranty covers all defects in material and workmanship with the following specified exceptions 1 damage caused by accident unreasonable use or neglect including the lack of reasonable and necessary maintenance 2 damage occurring durin...

Page 8: ...y com All rights reserved This handbook must not be reproduced in any form even in excerpts or duplicated or processed using electronic mechanical or chemical procedures without written permission of the publisher This handbook may contain mistakes and printing errors The information in this handbook is regularly checked and corrections made in the next issue We accept no liability for technical m...

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