Duro Chargers

The Duro are quality charger platforms that can easily be configured into various applications at a low cost. Cadex offers several charger models: The Duro A-Series serves wireless communications and industrial applications; the Duro B-Series communicates to SMBus and serves mobile computing, medical and defense markets. The A and B-Series come in single and five-bay configurations.
  • Effective charging methods assure safe charging even under adverse conditions
  • Precise full-charge detection keeps battery cool and extends service life
  • SMBus charging with conditioning and calibration functions keep batteries in optimal operating condition (B-5 only)
  • Quality design and manufacturing provide superior product performance, reliability and longevity.

Duro A1 Single-bay Battery Charger

Duro A1 This compact single-bay charger services lithium and nickel based battery packs. The external 18-watt AC power supply provides 15 watts of charge power per bay. Charge time is 2-3 hours, depending on battery size.
  • NiCd, NiMH, Li-ion
  • 3.6 - 14.4V batteries
  • 1.5 Amp charge current (up to 15 W per bay)
  • Charge/Ready/Fail LED’s
  • Full charge detection
  • Adapters available
Part Number: 11-403-0100

Duro A5 Multi-bay Battery Charger

Duro A5 Has a 90-watt external AC power supply to provide 15 watts of charge power per bay. Charge time is 2-3 hours, depending on battery size.
  • NiCd, NiMH, Li-ion
  • 3.6 - 14.4V batteries
  • 1.5 Amp charge current (up to 15 W per bay)
  • Charge/Ready/Fail LED’s
  • Full charge detection
  • Adapters available
Part Number: 11-403-0500

Duro B1 Single-bay Battery Charger

Duro B1 Charges SMBus and non-SMBus batteries. A 30-watt external AC power supply provides 27 watts of charge power per bay for a charge time of 2-3 hours on most batteries.
  • NiCd, NiMH, Li-ion
  • 3.6 - 14.4V batteries
  • 3 Amp charge current (up to 27 W per bay)
  • Charge/Ready/Fail LED’s
  • Full charge detection
  • Adapters available
Part Number: 11-403-0120

Duro B5 Multi-bay Battery Charger

Duro B5 Similar to B1 with 5 bays for simultaneous service of 5 batteries; includes battery calibration & conditioning function on bays 1 and 2. A 150-watt external AC power supply provides 27 watts of charge power per bay.
  • NiCd, NiMH, Li-ion
  • SMBus & non-SMBus charging
  • 1 Amp discharge current
  • Fuel-gauge calibration & conditioning
  • Prompts user to calibrate when needed
  • Charge/Ready/Fail LED’s
  • Full charge detection
  • 3.6 - 14.4V batteries
  • Adapters available
Part Number: 11-403-0520

Hot and cold charging


Advanced charge techniques guarantee full state-of-charge and safe operation even under adverse conditions.

Below 0C (32F), the Duro applies a trickle charge to warm up the nickel-based battery, then switches to fast-charge on reaching operating temperature. A charge time-out timer prevents a prolonged charge at low temperature. For safety reasons, lithium-ion does not charge below 5C (41F).

Above 50C (123F), the Duro allows the battery to cool down to 45C (113F) before taking on a charge or resuming from a previous charge. Should the temperature remain high, a time-out timer terminates the battery with a fail indication. Preventing charge at high temperatures protects battery and equipment and achieves optimal safety.

* Temperature sensing requires a thermistor in the battery or in the adapter

Full-charge termination

The termination methods of nickel-based batteries are based on negative delta V, plateau timer and dT/dt. Lithium-ion terminates on a current saturation. Redundant detection methods provide safe charging, even if the battery is known to be defective.

Tri-chemistry selection

The user often has the choice of utilizing nickel or lithium-based batteries. Duro adapters automatically detect the battery type and select the correct charge algorithm. Nickel and lithium-based batteries can be charged in the same adapter.*

* Only for batteries with usable identification code
Tri-Chemistry Selection

Active charge operation

Operators often require monitoring voice traffic while the radio is in the charger. The Duro makes this possible by applying a topping charge after energy has been dispensed. With the Duro charger, a two-way radio can in essence become a base station. Active Charge Operation

Signal indicators

Two light signals indicate charging, ready and fail status. Fail denotes a battery that is shorted, unable to follow the predicted voltage pattern or other anomalies. A fail condition terminates service to protect the battery and charger and alerts the user with a flashing red LED. Signal Indicators


Reactivating lithium-ion batteries

When discharged too low, some lithium-ion batteries appear dead and cannot be recharged. The Duro charger recognizes this condition and reactivates the pack’s safety circuit with charge pulses. On reaching normal voltage, a fast-charge completes the charge. Reactivating Lithium-ion Batteries

Conditioning / calibration discharge

Bay 1 and 2 of the Duro B5 are equipped with discharge circuits. This feature reverses memory on nickel-based batteries and calibrates SMBus packs. Batteries in constant use should be serviced once every 1-3 months to prolong battery life and retain an accurate digital readout. The B5 recognizes the need for calibration by flashing the red LED for 15 seconds. Conditioning and Calibration Discharge

Charges SMBus batteries

The Duro B-system services SMBus batteries by communicating with the internal battery flags and resetting the state-of-charge indicator on full charge. SMBus Batteries

In-vehicle mounting

The Duro chargers can be installed in a vehicle to service 3.6 to 7.2 volts batteries. Higher voltage batteries can be serviced by adding a third-party external DC-to-DC converter. Cadex offers several mounting options that allow horizontal or vertical mounting. Typical charger locations are the transmission hub, firewall, trunk floor and the wall in a truck. The installation is quick and simple.

SYSTEM SPECIFICATIONS

  Duro A1 Duro A5 Duro B1 Duro B5
System 1-bay quick-charger
for regular batteries
5-bay quick-charger for simultaneous charge of 5 batteries 1-bay quick-charger for SMBus batteries; also charges regular batteries 5-bay quick-charger for simultaneous charge of 5 regular and SMBus batteries
Battery interface The chargers are factory configured for the battery type. Customer specified.
Chemistries Nickel-cadmium (NiCd), nickel-metal-hydride (NiMH) and lithium-ion (Li-ion).
Charge protocol Nickel-based: Constant current; charge termination: dT/dt (rate-of-temperature increase); 1°C/min. rise, NDV 8-10mV/cell; plateau timer; trickle charge of 0.05C when ready.
Lithium-based: Constant voltage, current limit; charge termination on current drop to 0.05C.
Temperature management Nickel-based: Trickle charge if below 0°C, normal charge when warm
Lithium-based: No charge if below 5°C, resumes charge when warm
No charge for all chemistries above 50°C; resumes when cooled down to 45°C.
Battery mAh/V 500mAh - 8000mAh
Low-V version
High- V version
3.60 - 7.20V
8.40 - 14.40V
3.60 - 7.20V
8.40 - 14.40V
Special order
9.60 - 14.40V
Special order
9.60 - 14.40V
Charge time Nickel-based chemistries: 90 minutes typical; longer on larger batteries
Lithium-based chemistries: 3h typical; longer on larger batteries
Discharge power Not available Not available Not available 1A, 15W max each for bays 1 & 2
Light signals Charging: Flashing green
Ready: Solid green
Fail: Solid red
Same, red/green discharging; flashing red hint to calibrate
Electrical 18 watts external AC power adapter,
(90-250 VAC,
47-63 Hz)
90 watts external AC power adapter, (90-250 VAC, 47-63 Hz) 30 watts external AC power adapter, (90-250 VAC, 47-63 Hz) 150 watts external AC power adapter, (90-250 VAC, 47-63 Hz)
Vehicle mount Charges 3.6 - 7.2V batteries from 12VDC vehicular power source
Approvals CSA 60950, UL60950, EN 60950 for safety and FCC Part 15 Class A, EN55022 Class A for EMI, and EN61000-3-2, EN61000-3-3 and EN61000-4-2, -3, -4, -5, -6, -11 for EMC. RoHS and WEE compliant
Environmental Operating temperature: 0°C to +40°C (32°F to +104°F)
Storage temperature: -30°C to +70C (-22 to +158°F)
Physical
Length
Width
Height
Weight
232.4 mm (9.15”)
127 mm (5”)
57 mm (2.24”)
0.4 kg  (0.88 lb)

 

520.7 mm (20.5”)
232.2 mm (9.14”)
57 mm(2.24”)
3.25 kg  (7.16 lb)

 

232.4 mm (9.15”)
127 mm (5”)
57 mm (2.24”)
0.4 kg  (0.88 lb)
520.7 mm (20.5”)
232.2 mm (9.14”)
57 mm(2.24”)
3.25 kg  (7.16 lb)
Warranty Cadex warrants the analyzer against defective materials and workmanship for a period of one (1) year from the original purchase date.

Fire Hall "Use Case" Video
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