La Crosse Technology BC-900 Current key, Operating Modes of the Charging Unit, Charge Mode

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CURRENT key

Press to select the amount of current to be applied (within the first 8 seconds after batteries are inserted) in different operating modes (also see “Start charging the rechargeable batteries” below).

OPERATING MODES OF THE CHARGING UNIT

This powerful charging unit provides the following operating modes:

a.Charge the rechargeable battery (CHARGE) – to charge the rechargeable battery, automatically switches to trickle charge after the rechargeable battery is full.

b.Discharge then charge the rechargeable battery (DISCHARGE) – to discharge the rechargeable battery then charge it to minimize the memory effect.

c.Refresh the rechargeable battery (REFRESH) – to refresh the rechargeable battery to its maximum capacity by charging and discharging the rechargeable battery repeatedly until no further increase in the capacity is estimated. For old rechargeable batteries or those have not been used for a long times, refreshing may bring the rechargeable battery back to the optimum condition.

d.Check the rechargeable battery capacity in mAh/ Ah (TEST)

CHARGE MODE

Charging at 200 mA is the default-operating mode of the charging unit.

When only one or two rechargeable batteries are charged, provided that only compartment 1 and compartment 4 are used, a charging current up to 1500 or 1800 mA may be set by the pressing the CURRENT key.

On the other 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.

When charging two batteries at compartment 1 & 4 – max. charging current: 1800 mA

When charging two batteries at compartment 1 & 2 – max. charging current: 1000 mA

When charging two batteries at compartment 2 & 3 – max. charging current: 1000 mA

When charging four batteries – max. charging current: 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

Charging current

Estimated charging

battery

Capacity

selected

time

 

 

1800

~75 min

 

 

1500

~90 min

AA

2300 mAh

1000

~2 hr 15 min

700

~3 hr 15 min

 

 

 

 

500

~4 hr 30 min

 

 

200

~11 hr 30 min

 

 

1800

~70 min

 

 

1500

~80 min

AA

2000 mAh

1000

~2 hr

700

~3 hr

 

 

 

 

500

~4 hr

 

 

200

~10 hr

AAA

700 mAh

700

~60 min

500

~84 min

 

 

200

~3 hr 30 min

Note:

zUser shall always observe the recommended maximum charging current of the rechargeable batteries. In general, 200 mA is a recommended charging current if rapid charging is not necessary. It is definitely safe and optimum to the rechargeable batteries.

zWhen the transformer has been plugged to the power source, the version number of the charger (for example “29” ) will be displayed first. Then all the segments will light up momentarily and the “null” sign will be shown before batteries are placed. If damaged batteries are placed to the charging unit, the charger will also show “null” on LCD.

“null” displayed - No battery or damaged battery is placed to the charging unit

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Contents Inventory of Contents Battery Charger BC-900 IntroductionFeatures Function KeysOperating Modes of the Charging Unit Charge ModeCurrent key Charging Time with various charging currentDischarge Mode Start Charging the Rechargeable BatteriesTest Mode Discharge Mode CurrentRefresh Mode Test Mode CurrentTrickle Charging Display Mode InformationVarious displays in Refresh Mode Current Time CapacitySpecifications Size C and Size D Battery Adapters Free AccessoryCare and Maintenance Liability DisclaimerWarranty Information Support@lacrossetechnology.com