IOTA 25A 24VDC 120VAC Battery Charger With IQ4 Controller

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Quick Overview

  • DC Output Voltage: 27.0V (DC) @ FULL LOAD
  • Output Amperage: 15 Amps
  • Input Voltage Range: 108 - 132 AC
  • Input Voltage Frequency: 47-63 Hz
  • Warranty: 2-years
  • IOTA 25A 24VDC 120VAC Battery Charger With IQ4 Controller

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    IOTA DLS-IQ4 Controllers

    DLS multi-stage chargers with IQ4 control installed ensure that deep cycle batteries are charged quickly and efficiently.

    The IQ4 Smart Controller provides intelligent automatic charging control for your DLS Battery Charger, keeping batteries fully charged and operating for long life. IQ4 Charge Controllers are available for any DLS Battery Charger model and are backed by IOTA's Two-Year Warranty. For 4-Stage Charging, use either the external IQ4 pendant or a DLS charger with built-in IQ4 control.

    The IQ4 Charge Controller allows the DLS Series battery charger to operate as an automatic 4-Stage "Smart Charger," delivering the charge your battery needs at the time it needs it. The IQ4 uses four different charging modes to keep your battery in peak condition.

    The DLS-27-15 battery charger/power converter from IOTA Engineering converts nominal 120V A.C. voltage to 27.2V D.C. As a power supply, its tightly controlled regulation allows the user to operate any appropriate nominal D.C. load up to the converter’s rated output current. As a battery charger, the DLS-27-15 will maintain the battery, delivering its full-rated current when the battery capacity falls sufficiently low. The voltage is set to deliver its maximum current for the necessary period of time that minimizes undue stress to the battery caused by heating of its cells. This helps to ensure the longest possible life of the battery. Over time, as the battery nears its full capacity, the converter will float-charge the battery to prevent self-discharge of its cells.

  • Switch-mode technology
  • Exceptionally clean DC output
  • Tight line-load regulation
  • Quickly and efficiently charges batteries
  • Designed to withstand low transient AC line voltage
  • Current limit and thermal/overload protection
  • Lower operating temperature
  • Proportional fan control circuitry allows fan to start
  • and stop slowly for quiet fan operation
  • External reverse polarity fuse protection from incorrect battery connection
  • Charging Jack allows for normal and high-stage charging
  • Compatible with IOTA IQ Smart Charger for automatic three-stage charging


    Series DLS
    Manufacturer Part Number DLS27-25W/IQ
    Warranty 2-years
    Long Description DLS multi-stage chargers ensure that deep cycle batteries are charged quickly and efficiently. IQ4 control installed for 4 state charge control.
    Max Current 25.0
    Input Voltage 120
    Charge Current 25
    Length 7.0  IN
    Width 6.5  IN
    Height 3.5  IN
    Weight 7.0  LB


    DC Output Voltage (No Load) approx. 27.2V (DC)
    Output Voltage Tolerance (No Load) + or - .5%
    Output Amperage, Max Continuous 15 Amps
    Output Voltage (Full Load) approx. >27.0V (DC)
    Maximum Power Output, Continuous 400 Watts
    Ripple and Noise <50 mV rms
    Input Voltage Range 108 - 132 AC
    Input Voltage Frequency 47-63
    Maximum AC Current (@108VAC) 7.3 Amps
    Typical Efficiency >80%
    Max Inrush Current, Single Cycle 30 Amps
    Short Circuit Protection Yes
    Overload Protection >100%
    Line Regulation 100 mV rms
    Load Regulation <1%
    Fan Control* Proportional
    Thermal Protection YES
    Working Temperature Range 0° - 40° C
    Storage Temperature -20° to 80° C
    Withstand Voltage (VDC)** 1700/1700/500
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