Opus BT-C700 Operating Instructions Manual

OPERATING INSTRUCTIONS

Battery Charger BT-C700

1. Intended Use

The product is intended to charge and discharge NiCad or NiMH

rechargeable batteries. It provides four independent charging slots for

AA/AAA rechargeable batteries. The charger can also optimize and test

the maximum capacity of the rechargeable batteries. Each charging slot

has its own display to show various information, such as, charging current,

battery voltage, charged/discharged capacity, battery internal resistance

and elapsed charging time.

The charging current can be selected from 200mA to 1000mA. If 4

batteries are needed to be charged, then the maximum current for each

slot is limited to 700mA. If battery in slot 2 or 3 is not present, then the

maximum current for slot 1 and 4 can be selected up to 1000mA.

The charger can charge batteries of different type and size and with

different capacity at the same time. It also integrates the minus delta

voltage (-ΔV) function, which monitors the voltage over the charging cycle.

When battery is fully charged, the charger will switch to trickle charging

automatically. Therefore the battery will be kept at its optimum capacity.

The charger also includes overheat detection to protect rechargeable

batteries and charger itself from overheating.

Specially design improved charging circuit provides excellent

heating management during high current charging process, which

assures the best charging condition for batteries.

The charger can only be powered by power supply rated 12v/1.0A.

Operate and store it in dry indoor environment only.

This product fulfills European and national requirements related to

electromagnetic compatibility (EMC). CE conformity has been verified and

the relevant statements are available upon request.

Unauthorized conversion and/or modification of the device are

inadmissible because of safety and approval reasons (CE). Any usage

other than described above is not permitted and can damage the product

and lead to associated risks such as short-circuit, fire, electric shock, etc.

Please read the operating instructions thoroughly and keep them for future

reference.

The charger has its backlight turned on after each key press. Back light will

be switched off after 30 seconds when no key is pressed.

The maximum charging capacity can be up to 20,000mAH.

2. Delivery Content

Battery Charger BT-C700 1pcs

Power Adapter 1pcs

Operation Instructions 1pcs

Optional accessory Part:

3. Safety Instructions

We do not assume liability for resulting damages to property or personal

injury if the product has been abused in any way or damaged by improper

use or failure to observe these operating instructions. The warranty will

then expire!

3.1 Product Safety

 The product must not be exposed to substantial mechanical strain or

strong vibrations.

 The product must be protected against electromagnetic fields, static

electrical fields, extreme temperatures, direct sunlight and moisture

 The manufacturer’s instruction for the respective batteries must be

observed, before they are charged.

 The product should not be connected immediately after it has been

brought from an area of cold temperature to an area of warm

temperature. Condensed water might destroy the product. Wait until

the product adapts to the new ambient temperature before use.

Sufficient ventilation is essential when operating the charger. Never cover

the ventilating slots of the charger. Please take precautions especially

when ambient temperature is over 35 degrees Celsius and charging

current rate is over 0.5C. If higher charging current applied, it is easier to

build up temperature on batteries.

3.2 Battery Safety

 Correct polarity must be observed while inserting the batteries.

 Non-rechargeable batteries, rechargeable alkaline batteries (RAM),

lead acid batteries and lithium batteries must not be charged with

this product. There is danger of explosion!

 Batteries should be removed from the device if it is not used for a

long period of time to avoid damage through leaking. Leaking or

damaged batteries might cause acid burns when in contact with skin,

therefore use suitable protective gloves to handle corrupted

batteries.

 Batteries must be kept out of reach of children. Do not leave the

battery lying around, as there is risk, that children or pets swallow it.

Batteries must not be dismantled, short-circuited or thrown into fire. Never

recharge non-rechargeable batteries. There is a risk of explosion!

3.2 Miscellaneous

 Repair works must only be carried out by a specialist/specialist

workshop.

 If you have queries about handling the device, which are not

answered in this operating instruction, please check with the

distributor for further help.

4. Power Supply

The shipped power adapter is the power supply for this charger. In case

you need to use other power adapter, please be aware that power supply

has the correct polarity plug. Also please be noted that power supply need

be able to supply minimum 1.0A current. Low output power adapter could

lead to working improperly.

When charger is powered up, version number is displayed for 2s. Then all

LCD segments will light up momentarily. “null” will be shown until any

batteries are inserted.

5. Operation

Once a rechargeable battery is inserted, its present voltage( for example,

“1.12v”) will be displayed for 3 seconds, then 400mA default charging

current will be shown on display for another 3 seconds. If MODE or

CURRENT button is not pressed during these 6 seconds, the charging

process will start. During the first 6 second time, If any button is pressed,

the unit will wait for another 10s before finishing current slot setting. Once

the first battery working mode has been entered, the next battery can be

inserted and choosing the desired working mode accordingly. While the

previous battery slot setting mode is in effective (telling by the flashing

display of that battery slot LCD ), and the next battery is inserted, then both

battery slot display will be flashing, which means that any setting change

will be applied for all batteries in setting mode at the same time.

Once normal working mode starts, charging current or working mode can

no longer be changed until batteries are taken out from charger and insert

into charger again, or mode button is pressed longer than 2 seconds..

During normal working mode, press DISPLAY button will toggle display

mode between battery voltages, working current, elapsed time for all the

slots in working progress.

Each button pressed will turn on back light for 30 seconds.

5.1 Mode Selection

 Press and hold the “MODE” button for 2 seconds to start working

mode selection for all four battery slot.

 Press the “MODE” button subsequently to toggle among the

“Charge”, ”Discharge”, ”Test” , “Quick Test” and “Refresh” mode

 When particular slot working mode needs to be changed, detach the

battery from charger and insert the battery into slot again, while that

selected slot LCD display content is in flashing, press MODE button

to choose desired working mode.

 When working mode is changed, working current adjustment is

possible also.

5.2 Current Selection

Within the first 6 seconds after inserting the battery or right after power up,

press the “CURRENT” button to select desired charge current for slots

loaded with battery at the same time. Current setting can not be altered

once the setting has been confirmed in the initial stage. If different working

current is needed afterwards, either changing the working mode or

rechargeable battery must be taken out and inserted again. Discharge

current is automatically set to predefined charge current.

Batteries for slot 1 and 4( no batteries present at slot 2 or 3), its charging

current can be selected for 1000mA further. Slot 2&3 maximum charging

current is limited to 700mA only.

5.3 Display Selection

“DISPLAY” button is for toggling display information for voltage, current,

capacity, work time etc.

6. Overheat Protection

With our improved charging circuit design, for normal good quality battery

with low impedance, heating built up on battery during charging process is

almost unnoticeable. However during the last charging stage, when battery

is almost full, batteries can become warm. This is normal: the larger

charging current applied, the more heat will build up. When battery

temperature is sensed to be over 60C, then over heat protection will be

kicked in for safety reason. Beside the two battery temperature sensor,

there are also two temperature sensors located on controller board,

located at the area where most heat is generated. So both battery and

controller temperature is monitored during the operation of the charger.

When overheating occurs, either from battery over 60 degrees Celsius or

controller board over 77 degrees Celsius, current working mode will be

automatically halted. If controller board over heat is detected, over heat

protection will be applied for the corresponding 2 battery slots at the same

time. If battery temperature over heat detected, only the over heated

channel will be halted accordingly. To tell if it is in the state of overheating

protection mode, charging current will be reduced to 0mA.

Charging/discharging process will only resume after battery temperature

drops below 40 degrees Celsius and/or charger controller board drops

below 50 degrees Celsius.