La Crosse Technology RS-900 User Manual

BATTERY CHARGER RS-900

BEFORE USING OUR BATTERY CHARGER RS-900, READ IN DETAILS ALL INSTRUCTIONS CONTAINED IN THIS MANUAL. KEEP THIS MANUAL IN A SAFE PLACE AS YOU MAY NEED TO USE IT AT A LATER DATE.

We draw the attention of all users of this device: please follow the safety and maintenance instructions which are part of this manual. Also read the caution markings on the charger, the manual, and the gift box.

Instruction Manual

INTRODUCTION:

Congratulations on purchasing this intelligent charging unit which enables definitely 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 journey.

The Charging unit

CAUTIONS:

1. The charger is restricted to charging NiCd and NiMH rechargeable batteries only. Never adopt this charger to 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 only 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 adopt 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 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

 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.

 Fast charging – 70 mins to charge up 2000 mAh batteries  Individual LCD display for compartments  Charging both “AA” and “AAA” rechargeable batteries simultaneously  Overheat detection to protect rechargeable batteries from over-charging  Minus delta voltage (-dV) detection for charge termination  Damaged batteries detection  Discharge mode (first discharging and then charging) to remove memory effect of

rechargeable batteries

 Refreshing old rechargeable batteries by discharging/ charging cycles  Test function to check the capacities of rechargeable batteries  Charging/ Discharging functions can be launched independently and simultaneously to

each rechargeable battery in the compartments

 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 nos.) & Size “D” battery adapter (4 nos.)

4. Holding Bag

5. “AA” rechargeable battery (4 nos.) & “AAA” rechargeable battery (4 nos.)

6. Instruction Manual

FUNCTION KEYS:

There are three easy-to-use function keys and four number keys in the charging unit:

CURRENT ke

DISPLA

Compartment Number keys

MODE key

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 enable to toggle between the “Charge”, “Discharge”, “Test” and “Refresh” mode. To change the operating mode for individual rechargeable battery, first press 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 corresponding NUMBER key then press the DISPLAY key.

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 up the rechargeable battery (CHARGE) – to charge up the rechargeable battery,

automatically switch to trickle charge after rechargeable battery is full.

b. Discharge then charge up the rechargeable battery (DISCHARGE) – to discharge the

rechargeable battery then charge it for minimizing 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 numbers of 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 numbers of 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

The estimated time of charging by various charging current is tabulated in Table 1.

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

When charging four batteries – max. charging current: 1000 mA

Table 1. Charging Time with various charging current

Size of battery Battery Capacity Charging current selected (mA) Estimated charging time

AA 2300 mAh

AA 2000 mAh

AAA 700 mAh

1800 ~75 min 1500 ~90 min 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 1000 ~2 hr

700 ~3 hr

500 ~4 hr

200 ~10 hr

700 ~60 min

500 ~84 min

200 ~3 hr 30 min

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