BatteryMINDer 244CEC2-AA-S2 24-Volt Aviation Battery Charger/Maintainer/Desulfator
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The BatteryMINDer 244CEC2-AA-S2 is a powerful, multi-functional 24V – 4A Charger/Maintainer/Desulfator designed specifically for Teledyne Gill® Aviation Batteries. Pilots and mechanics looking to maximize the lifespan and performance of their 24-volt Gill aircraft batteries will find this unit invaluable. With patented technology and a guarantee against overcharging or undercharging, the 244CEC2-AA-S2 ensures your batteries are always in optimal condition, making it an essential piece of equipment for aviation professionals.
This BatteryMINDer model is packed with advanced features. It uses full-time U.S.-patented pulse-type desulfation, which keeps batteries free of sulfate buildup or dissolves it entirely in older batteries, helping extend battery life and recover weak or deeply discharged units. The charger is equipped with advanced diagnostics that detect battery conditions, including bad cells, and automatically adjusts the charge rate based on ambient temperature (0°F to 130°F), ensuring a full and safe charge. Its ECO-mode guarantees high efficiency and low power consumption, making it ideal for long-term maintenance.
Features & Benefits
- Guaranteed never to overcharge or undercharge between temperatures of 33°F to 130°F, ensuring precise battery maintenance.
- It features 100% full-time U.S.-patented pulse-type desulfation technology that prevents and dissolves sulfate buildup, helping extend the life of Gill batteries.
- Detects and rejects batteries with bad cells, preventing further issues.
- Automatically terminates charge to prevent dangerous out-gassing, protecting both you and your equipment.
- Recovers weak or deeply discharged batteries, including flooded filler cap, maintenance-free, valve-regulated lead-acid (VRLA), sealed lead-acid (SLA), starter, deep cycle, and hybrid batteries.
- Diagnoses battery condition and state-of-charge, allowing you to stay informed on battery health.
- Capable of maintaining up to two batteries simultaneously with the optional BatteryMINDer Y-Connector (210-AY).
- Auto-restart after power failure ensures uninterrupted operation, while bad-cell detection triggers auto-shutdown to prevent battery damage.
- Built with short circuit, spark, reverse polarity, and thermal runaway protection for safe operation.
- Ambient temperature compensation adjusts the charge rate across extreme temperatures (as low as 0°F and as high as 130°F), ensuring full, safe charging in any environment.
- The ECO-mode offers high-efficiency charging with low power consumption, making it cost-effective and eco-friendly.
- Features 12 LED indicators that display state-of-charge and important battery condition status.
The 244CEC2-AA-S2 also includes the necessary accessories for easy setup and use:
- 6' AC cord and 6' DC cord with quick-connect (SAE)
- Auto-Temp Compensation Sensor (installed)
- 2' insulated battery clip cord set with a quick connector and replaceable 15A fuse
Please note: This model is designed for input voltages up to 120V AC and requires an isolation step-down transformer for higher voltages.
Whether you're maintaining a fleet or preparing for a single flight, the BatteryMINDer 244CEC2-AA-S2 is the ideal solution for extending the life and reliability of your Teldyne Gill batteries, providing peace of mind for both pilots and mechanics.
| General Information | |
|---|---|
| Part # | 244CEC2-AA-S2 |
| Manufacturer | BatteryMINDer |
| Shipping Information | |
|---|---|
| Product Weight | 3.1 lbs. |
| Product Dimensions | 13 x 12 x 4 in. |
| Schedule B | 8504409520 |
| ECCN | EAR99 |
| Specifications | |
|---|---|
| Charging Current | 4 AMP |
| Comes with | Auto-Temp Compensation Sensor (Installed), 2' Insulated Battery Clip Cord Set with Quick Connector and 15A replaceable fuse, 2' Ring Terminal, Cord Set, Instruction Manual |
| International Standard | IP65 |
| Multiple Batteries (#) | 2 |
| Optional Accessories | 210AY, 210RT, ABS-248, ATS-1, BCAA, BM-AIK2, DCE12, DCE25, RTA-2415EXP, VPP12 |
| Overcharge Protection | Yes |
| Polarity Reversal Protection | Yes |
| Power Source | 90-140 VAC, 47-63 Hz |
| Product Dimensions | 4.9” L x 7.3” W x 2.1” H |
| Temperature Compensation | Yes, -4°F (-20°C) to 122°F (50°C) |
| Voltage | 24V |
| Warranty | 5 Year |
| Works With | GILL® Aviation Batteries |
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AIRCRAFT COMPATIBILITY
This item is for use on all aircraft.
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QUESTIONS & ANSWERS
The BatteryMINDer 244CEC2-AA-S2 is calibrated for specific 24-volt aviation lead-acid batteries, including certain Gill and Concorde models, as outlined in the manufacturer's labeling. It is not intended for NiCad batteries. Proper model selection ensures the correct charge and float voltages are applied, helping protect aircraft battery performance and airworthiness.
Aircraft batteries are highly sensitive to ambient temperature, and improper voltage can lead to overcharging or undercharging. The included Ambient Temperature Sensor (ATS) automatically adjusts the output voltage to prevent sulfation in cold conditions and excessive outgassing in hot environments. This feature is especially important for hangar-kept aircraft exposed to seasonal temperature swings.
Yes, the unit is designed for continuous maintenance charging once the battery reaches full capacity. After completing the bulk and absorption stages, it automatically transitions to float mode, where it monitors and maintains optimal voltage. Long-term connection helps prevent sulfation and keeps the aircraft battery ready for service.
The instruction manual emphasizes proper ventilation and warns against charging batteries in tightly confined spaces unless the manufacturer's guidance permits it. Hydrogen gas accumulation can pose a hazard, particularly with older or marginal batteries. Always consult the battery manufacturer’s ICA documentation before charging inside the aircraft.
The integrated desulfation mode applies controlled pulses whenever current is flowing. Over time, this helps break down sulfate buildup on lead plates, improving battery capacity and extending service life. For aircraft that fly infrequently, this function is critical in maintaining cranking reliability.
The charger’s LED indicators provide real-time status updates, including soft-start, bulk, absorption, float, weak battery, bad cell, testing, load detection, and temperature compensation. For example, a flashing red “Bad Cell” indicator signals a battery that should be replaced. These diagnostics help technicians quickly assess battery health during maintenance.
The BatteryMINDer 244CEC2 can maintain up to two fully charged, healthy 24-volt batteries when properly configured. However, each battery must be tested and desulfated individually before being connected. Attempting to recover multiple weak batteries at once may yield poor results.
If the battery voltage falls below the minimum thresholds, the unit initiates Soft-Start mode to safely evaluate whether charging can proceed. If the voltage is too low, the charger will reject the battery to prevent unsafe charging conditions. This protective feature helps avoid damage to both the battery and the aircraft's electrical system.
Yes, but connection methods differ. The manual recommends optional interface kits for FAA-certified aircraft installations and separate connection harnesses for experimental aircraft. Using approved quick-connect harnesses ensures safe, compliant aircraft battery maintenance.
Unlike automotive chargers, the BatteryMINDer 244CEC2-AA-S2 is aviation-calibrated to meet the voltage and maintenance requirements of certified aircraft batteries. It incorporates temperature compensation, multi-stage charging, battery testing, and long-term float management tailored for aviation use. This precision helps protect high-value aircraft electrical systems and extend battery service intervals.
