Description
Key Benefits
- Reduces charge time with intelligent stage transitions
- Prevents gassing, boiling, and battery plate sulfation
- Automatically maintains battery charge during idle periods
- Plug-and-play installation via Dual Voltage Jack
- LED indicator shows current charge stage at a glance
- Ensures long battery life and peak performance
- Compatible with multiple voltage systems (12V, 24V, 48V)
Best Uses
Tech Specs
| Spec | Value |
|---|---|
| Product Name | IOTA IQ4 Smart Charge Controller |
| Compatible With | IOTA DLS Series Chargers (12V, 24V, 48V) |
| Charging Stages | Bulk, Absorption, Float, Equalization |
| Bulk Voltage | 14.8V (12V), 29.6V (24V), 59.2V (48V) |
| Absorption Voltage | 14.2V (12V), 28.4V (24V), 56.8V (48V) |
| Float Voltage | 13.6V (12V), 27.2V (24V), 54.4V (48V) |
| Equalization Cycle | Triggered every 7 days in Float mode |
| Installation Method | Plug-in via Dual Voltage Jack |
| Status Indicator | Multi-color LED (flashing per stage) |
| Form Factor | Pendant-style external or internal mount |
| Weight | ~0.5 lbs |
Warranty
Important: Warranty applies in the United States and Canada.
More Info
The IOTA IQ4 Smart Charge Controller uses a 3-stage charging process with Bulk, Absorption, and Float stages to optimize battery charging and maintenance.
During the Bulk stage, the controller applies full charger output voltage to rapidly recharge deeply discharged batteries.
The Absorption stage delivers a controlled voltage for up to 8 hours to fully top off batteries without overcharging.
In the Float stage, voltage is reduced to safely maintain the battery charge and prevent gassing or boiling.
An Equalization stage is triggered every 7 days in Float mode to reverse sulfation and stratification, extending battery life.
Installation is simple with a plug-and-play design via the Dual Voltage Jack, compatible with IOTA DLS Series Chargers across 12V, 24V, and 48V systems.
A multi-color LED indicator provides clear, real-time status of the current charge stage for easy monitoring.
The compact pendant-style form factor allows for flexible mounting options, either externally or internally.
IOTA Engineering, based in Tucson, Arizona, has over 40 years of experience delivering reliable battery charging and AC/DC conversion solutions.
IOTA products are trusted in solar, RV, marine, telecom, emergency lighting, and industrial power applications for their durability and innovation.





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