Which would you install?

BFL13 wrote:
Important to note that the IQ4 is not like the Charge Wizard. The IQ4 makes the Iota into a fixed profile three stage but does not give you the over-ride to keep it in boost longer.

After the battery reaches 14.6 you might want to keep it there for an hour or whatever instead of have it drop to 14.2. If you are ok with the Iota's fixed profile then no problem.

The IOTA DLS IQ/4 with integrated IQ4 is 4 stage not 3. Adding the module will also make the DLS 4 stage.

No reason to set to boost manually since it does it automatically. System will monitor low and high trigger values and initiate ideal charge values. Personally I don’t want to think about my chargers in my RV or Boat. Maybe you have reasons to want a manual boost option but I never needed that in any condition. If you want that with an IOTA get the non IQ/4 and use the dual voltage plug provided which will put it into fast charge/boost/bulk manually. You have to then remove the plug to allow unit to step down voltage.

IOTA 4 Stage:

BULK STAGE - During this state, the charger will operate either at Full Current output or Constant Voltage output depending
on the discharged state of the battery. A discharged battery will dictate the voltage and force the charger into constant current
operation. As the battery charges, the charger transitions to a constant-voltage operation. This BULK STAGE will
continue for either 225 minutes or until the battery voltage reaches the “High Trigger” value (whichever occurs first). At this
point, the BULK STAGE will operate for another 15 minutes before switching to the ABSORPTION STAGE.

ABSORPTION STAGE - This state is limited to 480 minutes (8 hours) during which the charger will operate either at Full
Current output or Constant Voltage output depending on the discharged state of the battery. During Full Current output, the
charger is providing its full current rating and will slowly increase the battery voltage to the “Absorption Stage” voltage. At the
end of the 480 minutes, the charger will revert to the FLOAT STAGE.

FLOAT STAGE - This charge state holds the batteries at Constant Voltage for a period not longer than seven days. During
this state, the charger not only floats the batteries, but it can also provide load current up its maximum rating for other loads
without depleting the battery capacity. The FLOAT STAGE will end when either the battery voltage drops below the “Low Trigger”
point or at the end of seven days when the IQ4 initiates an equalization stage to remove sulfate layers from the battery
plates. In either situation, the unit exits the FLOAT STAGE and enters the BULK STAGE.

FAULT STATE - If the IQ4 is exposed to an “over voltage” condition by exceeding the “Over Voltage Trigger,” its circuitry is
automatically disabled. In this state, the functionality of the IQ4 is completely disabled, the LED will flash irregularly, and the
charger reverts to a stand-alone FLOAT STATE voltage. The unit will not exit this stand-alone FLOAT STATE, therefore the
unit must be reset by following the steps below.