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Battery MINDer 12v 8 Amp Aircraft Charger Maintainer Conditioner 12248-AA-S2

$189.99 - No Tax
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12248-AA-S2,24041-AA-S2: Safe to use on all type and size Aviation Specific batteries, including both sealed and wet-cell constructions. The voltage settings and charge rates (both user selectable) have been chosen, after conferring with leading aviation battery makers in the U.S. Features ‘Plug and Run’ which starts automatically as soon as it is hooked to power and batteries.

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Product InformationStore Part Number: BM12248AA-S2


Battery MINDer Charger/Maintainer/Desulfator-Conditioner–Charges, maintains, and conditions Aircraft 12 volt batteries. Eight amps of available charge current combined with a unique patented Pulse Mode circuitry that restores older batteries that are noticeably declining in performance caused by sulfation. This is an excellent unit for Aviation batteries, and charges up to 200% faster charging than conventional constant voltage chargers. For use in long term battery storage/maintenance mode, will not overcharge batteries.

The Battery MINDer is a 3-stage charger/maintainer/desulfator-conditioner that extends performance and life your Aviation 12 Volt lead acid batteries.

Battery MINDer is highly recommended for batteries that have be neglected and abused.

Each Battery MINDer ships with one set of alligator clips


  • Maximizes life and performance of all Aircraft Lead Acid Batteries regardless of size/type/brand.
  • Automatically detects defective batteries and rejects them.
  • Watertight enclosure with conformal-coated protected circuitry.
  • Built-in battery indicators: charge level / charge retention /sulphation indicator.
  • Automatic temperature compensation with battery temperature sensor
  • Full time random sweep desulphation
  • Polarity reversal error indicator
  • Portable or Onboard mountable
  • AC cord 6 feet, DC cord 8 feet overall with supplied connectors


There is an optional cigar lighter adapter. Please see the box in the right column.

Due to the different battery type setting the output voltages will vary depending on the battery type you select. The BatteryMINDer is one of the most advanced battery chargers on the market today.

* Flat Rate shipping is for the lower 48 states only.

Recommend Accessories
Battery MINDer Temperature Probe
Battery Minder Extension Cable Temperature Probe is designed to attach to the battery and monitor the battery temperature. Battery Minder will adjust the charger voltage to protect against overcharge and undercharge during temperature extremes.

Tech Specs

  • Dimensions (LxWxH): 5.5 x 5.5 x 2.5 in
  • Weight: 3 lb
  • Shipping Weight: 4 lb
  • AC Input Amps: 1.8
  • AC Input Volts: 120
  • AC Input Volts Freq.: 50/60hZ
  • AC Input Volts Range: 90–140 V
  • Desulphation Pulse: 100 +/-10 hz
  • Charge Voltage: variable
  • Model: BM12248AA-S2
  • Manufacturer: BatteryMINDer/VDC Electronics
  • Float Current: variable
  • Storage Temperature: -10 to 80 °C
  • Over Temperature: auto-reset thermal breaker
  • Output Banks: 1
  • Temperature Compensation: Battery Temperature Sensor
  • Recommended Use: Aircraft Specific
  • Regulatory Approval: Built to UL 1236 standards
  • Manufacturer Part #: BM12248AA-S2
  • Made In: China

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Reviews and Ratings

5.00 Average
5 Stars 1
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Rated 5.00/5 Stars from 1 customer reviews.

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Extending AC battery life
Pros: I used it every 3 months to top charge and desulphanate the AGM battery in my Piper Warrior for the past 5 years. The battery STILL passes its capacity test after 5 years. A remarkable result! I have never had an aircraft battery last this long with acceptable capacity.
Cons: None
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Written by Al on Oct 15, 2015. Ownership: When it goes, I'm giving it a eulogy. Knowledge Level: AC/DC is more than a band

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Manuals & Tutorials

Aviation Comparison Chart


Battery Minder Desulfation

Chargers Tutorial

Why does it read 13 volts?

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