Rev. 2004.04.26
I
IDX TECHNOLOGY
i400
SEQUENTIAL CHARGER/DISCHARGER
DX Technology wants to thank you for purchasing the i400, our sequential fast charger/discharger,
and hopes that its compact and careful design will satisfy all your battery charging needs. Please
utilize this Operation Manual for help on how to best use the
questions, please contact the appropriate IDX office listed on the second page.
FEATURES
- Sequential fast Charger / Discharger for Nickel Cadmium (NiCD) batteries and IDX NP
Nickel Metal Hydride (NiMH) batteries.
- Can be used for NP and BP style batteries
- Auto detection features for damaged or misused batteries and charger protection.
- Lightweight, compact, easy to carry for ENG, DNG and Field operation.
- Robust metal case, recessed power switch, built-in spare fuse
- Universal A/C power input 100~240vAC for worldwide use.
OPERATING INSTRUCTIONS
A. Connect AC power cord firmly.
B. Set the power switch ON at the rear of the unit (the front panel green led will light).
C. For use as a charger:-
The i400 is a sequential charger. The sequence for battery charging is called the charging
sequence loop. The charging sequence loop starts at channel 1 then progresses through to
channel 4, and then back to 1 again (1,2,3,4,1,2,3,4….). The charger automatically searches
each channel for a battery to charge, in a continuous loop. The charging sequence loop is
interrupted only by the detection of a valid battery to be charged. The red LED will be
displayed, signifying a charge in progress. Upon completion of charging the red LED will turn
green and the sequence loop will resume from that point. Once fully charged all batteries are
trickle charged.
For use as charger/discharger:-
The red button on the front of the unit is used to activate discharge. Unless depressed the unit
will automatically charge only. Similarly to charging, the unit has sequential discharging.
Once the discharge button is pressed the LED will flash green. The LEDs for all other
channels will turn amber waiting for discharge.
Note: - Charge Priority for BP and NP batteries connected to the same channel
The unit gives priority to the BP Battery connector.
With BP & NP batteries connected the NP-type will not be charged. Wh en a BP
battery is connected after an NP is already connected the charging (or discharging) of
the NP stops and the BP charging starts.
Typical Charge Times
This depends on battery condition and frequency of the battery usage. The following
are approximate figures,
NP-23/NP-23dx/NP-1dx ------------ 85 minutes
NP-H50/NP-H50dx------------------ 125 minutes
BP-95S/BP-95dx--------------------- 175 minutes
i400. If you have any additional
Rev. 2004.04.26
Typical Discharge Times
This depends on condition and frequency of the battery usage. The following are
approximate figures (From Full charge)
NP-23/NP-23dx/NP-1dx ------------- 75 minutes
NP-H50/NP-H50dx ------------------- 120 minutes
BP-95S/BP-95dx ---------------------- 160 minutes
SPECIAL FEATURES
• Independent Charge/Discharge. Although the i400 is a sequential charger/discharger, it is
designed to fast charge one channel while independently discharging another. This saves the
operator valuable time when conditioning batteries.
• Low Voltage Batteries. Batteries with low voltage will not be recognized as chargeable until the
unit’s initial conditioning sequence has brought them up to a valid voltage level for fast charging.
• Two Battery Types. The unit will charge either BP or NP type batteries, however it always giv es
priority to BP batteries. Inserting a BP battery in the same channel as an NP will disable charging
of the NP.
• Safety. The unit will automatically detect abnormally high or low voltage batteries or defective
batteries and will not permit charging. The channel in question will be skipped and the LED will
not come on.
• Uninterrupted Operation. If a battery is removed during or prior to or during charging, the unit
will automatically sequence on to the next available battery channel.
• Digital Negative Delta V charging. Using fully digital microprocessor controlled negative delta
V charging method; the unit will handle most manufacturers’ NP-1 or BP-90/95 style batteries.
From 12V~13.2V and 1Ah~7Ah.
Battery Protection Features
Following are a list of basic charger protection features for User recognition
* Low voltage battery
a. If the battery voltage is below or equal 5.0V
The battery will not be charged, (no charger LED)
b. If the battery voltage is 5.0~10.5V,
The unit starts conditioning charging (red LED lights) and automatically starts quick
charging when the battery voltage recovers to reach 10.5v. If the battery voltage does not
10.5V after 30 minutes of conditioning, charging will be stopped (orange LED blinks).
*Over charge protection
If charging does stop due to faulty battery or some other reason, a circuit protection timer is
automatically activated and stops charging.
If the battery is not charged after 260minutes (4 1/2Hrs) of charging, the unit stops charging.
If battery voltage is 13.0V, Green LED lights indicating usable battery. If the battery voltage
does not reach 13.0V, orange LED lights indicating fault.
*Over voltage protection
Over voltage protection circuit stops charging if the battery voltage does not reach specific
figure within specific time.
If the battery voltage reaches or exceeds 21.5V during quick charge is in progress, charging
will be stopped. Orange LED blinks)
D COLOR STATUS LIST
Full Red…….….………fast charge in progress
No LED………….……. charge waiting (when battery inserted)
Full Green………..……charge complete, trickle charge in progress
Blinking Green………..discharge in progress
Full Amber……….……discharge waiting
Blinking Amber………..defective battery (check battery specifications)
Blinking Red……….…..defective charger (return for service)
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